{"id":388,"date":"2016-04-28T13:41:38","date_gmt":"2016-04-28T05:41:38","guid":{"rendered":"http:\/\/www.jiandaima.com\/blog\/?p=388"},"modified":"2016-05-07T13:26:21","modified_gmt":"2016-05-07T05:26:21","slug":"%e8%b6%85%e5%85%a8%ef%bc%81ios-%e9%9d%a2%e8%af%95%e9%a2%98%e6%b1%87%e6%80%bb62-116","status":"publish","type":"post","link":"http:\/\/www.jiandaima.com\/blog\/archives\/388.html","title":{"rendered":"\u8d85\u5168\uff01iOS \u9762\u8bd5\u9898\u6c47\u603b(62-116)"},"content":{"rendered":"<p><a href=\"https:\/\/www.jiandaima.com\/blog\/wp-content\/uploads\/2016\/04\/0d4e4a4cf7001058ca1a642b33f8cd98.jpg\" class=\"highslide-image\" onclick=\"return hs.expand(this);\"><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter size-full wp-image-433\" src=\"http:\/\/images.jiandaima.com\/blog\/wp-content\/uploads\/2016\/04\/0d4e4a4cf7001058ca1a642b33f8cd98.jpg\" alt=\"\u8d85\u5168\uff01iOS \u9762\u8bd5\u9898\u6c47\u603b\" width=\"500\" height=\"375\" \/><\/a><\/p>\n<p><strong>62.\u8c08\u8c08Object-C\u7684\u5185\u5b58\u7ba1\u7406\u65b9\u5f0f\u53ca\u8fc7\u7a0b\uff1f<\/strong><\/p>\n<p>\u7b54: 1).\u5f53\u4f60\u4f7f\u7528new,alloc\u548ccopy\u65b9\u6cd5\u521b\u5efa\u4e00\u4e2a\u5bf9\u8c61\u65f6,\u8be5\u5bf9\u8c61\u7684\u4fdd\u7559\u8ba1\u6570\u5668\u503c\u4e3a1.\u5f53\u4f60\u4e0d\u518d\u4f7f\u7528\u8be5\u5bf9\u8c61\u65f6,\u4f60\u8981\u8d1f\u8d23\u5411\u8be5\u5bf9\u8c61\u53d1\u9001\u4e00\u6761release\u6216autorelease\u6d88\u606f.\u8fd9\u6837,\u8be5\u5bf9\u8c61\u5c06\u5728\u4f7f\u7528\u5bff\u547d\u7ed3\u675f\u65f6\u88ab\u9500\u6bc1.<\/p>\n<p>2).\u5f53\u4f60\u901a\u8fc7\u4efb\u4f55\u5176\u4ed6\u65b9\u6cd5\u83b7\u5f97\u4e00\u4e2a\u5bf9\u8c61\u65f6,\u5219\u5047\u8bbe\u8be5\u5bf9\u8c61\u7684\u4fdd\u7559\u8ba1\u6570\u5668\u503c\u4e3a1,\u800c\u4e14\u5df2\u7ecf\u88ab\u8bbe\u7f6e\u4e3a\u81ea\u52a8\u91ca\u653e,\u4f60\u4e0d\u9700\u8981\u6267\u884c\u4efb\u4f55\u64cd\u4f5c\u6765\u786e\u4fdd\u8be5\u5bf9\u8c61\u88ab\u6e05\u7406.\u5982\u679c\u4f60\u6253\u7b97\u5728\u4e00\u6bb5\u65f6\u95f4\u5185\u62e5\u6709\u8be5\u5bf9\u8c61,\u5219\u9700\u8981\u4fdd\u7559\u5b83\u5e76\u786e\u4fdd\u5728\u64cd\u4f5c\u5b8c\u6210\u65f6\u91ca\u653e\u5b83.<\/p>\n<p>3).\u5982\u679c\u4f60\u4fdd\u7559\u4e86\u67d0\u4e2a\u5bf9\u8c61,\u4f60\u9700\u8981(\u6700\u7ec8)\u91ca\u653e\u6216\u81ea\u52a8\u91ca\u653e\u8be5\u5bf9\u8c61.\u5fc5\u987b\u4fdd\u6301retain\u65b9\u6cd5\u548crelease\u65b9\u6cd5\u7684\u4f7f\u7528\u6b21\u6570\u76f8\u7b49.<\/p>\n<p><strong>63.Object-C\u6709\u79c1\u6709\u65b9\u6cd5\u5417\uff1f\u79c1\u6709\u53d8\u91cf\u5462\uff1f<\/strong><\/p>\n<p>\u7b54: objective-c \u2013 \u7c7b\u91cc\u9762\u7684\u65b9\u6cd5\u53ea\u6709\u4e24\u79cd, \u9759\u6001\u65b9\u6cd5\u548c\u5b9e\u4f8b\u65b9\u6cd5. \u8fd9\u4f3c\u4e4e\u5c31\u4e0d\u662f\u5b8c\u6574\u7684\u9762\u5411\u5bf9\u8c61\u4e86,\u6309\u7167OO\u7684\u539f\u5219\u5c31\u662f\u4e00\u4e2a\u5bf9\u8c61\u53ea\u66b4\u9732\u6709\u7528\u7684\u4e1c\u897f. \u5982\u679c\u6ca1\u6709\u4e86\u79c1\u6709\u65b9\u6cd5\u7684\u8bdd, \u5bf9\u4e8e\u4e00\u4e9b\u5c0f\u8303\u56f4\u7684\u4ee3\u7801\u91cd\u7528\u5c31\u4e0d\u90a3\u4e48\u987a\u624b\u4e86. \u5728\u7c7b\u91cc\u9762\u58f0\u540d\u4e00\u4e2a\u79c1\u6709\u65b9\u6cd5<\/p>\n<p>@interface Controller : NSObject { NSString *something; }<\/p>\n<p>+ (void)thisIsAStaticMethod;<\/p>\n<p>\u2013 (void)thisIsAnInstanceMethod;<\/p>\n<p>@end<\/p>\n<p>@interface Controller (private) -<\/p>\n<p>(void)thisIsAPrivateMethod;<\/p>\n<p>@end<\/p>\n<p>@private\u53ef\u4ee5\u7528\u6765\u4fee\u9970\u79c1\u6709\u53d8\u91cf<\/p>\n<p>\u5728Objective\u2010C\u4e2d\uff0c\u6240\u6709\u5b9e\u4f8b\u53d8\u91cf\u9ed8\u8ba4\u90fd\u662f\u79c1\u6709\u7684\uff0c\u6240\u6709\u5b9e\u4f8b\u65b9\u6cd5\u9ed8\u8ba4\u90fd\u662f\u516c\u6709\u7684<\/p>\n<p><strong>64.Object-C\u6709\u591a\u7ee7\u627f\u5417\uff1f\u6ca1\u6709\u7684\u8bdd\u7528\u4ec0\u4e48\u4ee3\u66ff\uff1fcocoa \u4e2d\u6240\u6709\u7684\u7c7b\u90fd\u662fNSObject \u7684\u5b50\u7c7b<\/strong><\/p>\n<p>\u7b54: \u591a\u7ee7\u627f\u5728\u8fd9\u91cc\u662f\u7528protocol \u59d4\u6258\u4ee3\u7406 \u6765\u5b9e\u73b0\u7684<\/p>\n<p>\u4f60\u4e0d\u7528\u53bb\u8003\u8651\u7e41\u7410\u7684\u591a\u7ee7\u627f ,\u865a\u57fa\u7c7b\u7684\u6982\u5ff5.<\/p>\n<p>ood\u7684\u591a\u6001\u7279\u6027 \u5728 obj-c \u4e2d\u901a\u8fc7\u59d4\u6258\u6765\u5b9e\u73b0.<\/p>\n<p><strong>65.\u5185\u5b58\u7ba1\u7406 Autorelease\u3001retain\u3001copy\u3001assign\u7684set\u65b9\u6cd5\u548c\u542b\u4e49\uff1f<\/strong><\/p>\n<p>\u7b54: 1).\u4f60\u521d\u59cb\u5316(alloc\/init)\u7684\u5bf9\u8c61\uff0c\u4f60\u9700\u8981\u91ca\u653e(release)\u5b83\u3002\u4f8b\u5982\uff1a<\/p>\n<p>NSMutableArray aArray = [[NSArray alloc] init]; \u540e\uff0c\u9700\u8981 [aArray release];<\/p>\n<p>2).\u4f60retain\u6216copy\u7684\uff0c\u4f60\u9700\u8981\u91ca\u653e\u5b83\u3002\u4f8b\u5982\uff1a<\/p>\n<p>[aArray retain] \u540e\uff0c\u9700\u8981 [aArray release];<\/p>\n<p>3).\u88ab\u4f20\u9012(assign)\u7684\u5bf9\u8c61\uff0c\u4f60\u9700\u8981\u659f\u914c\u7684retain\u548crelease\u3002\u4f8b\u5982\uff1a<\/p>\n<p>obj2 = [[obj1 someMethod] autorelease];<\/p>\n<p>\u5bf9\u8c612\u63a5\u6536\u5bf9\u8c611\u7684\u4e00\u4e2a\u81ea\u52a8\u91ca\u653e\u7684\u503c\uff0c\u6216\u4f20\u9012\u4e00\u4e2a\u57fa\u672c\u6570\u636e\u7c7b\u578b(NSInteger\uff0cNSString)\u65f6\uff1a\u4f60\u6216\u5e0c\u671b\u5c06\u5bf9\u8c612\u8fdb\u884cretain\uff0c\u4ee5\u9632\u6b62\u5b83\u5728\u88ab\u4f7f\u7528\u4e4b\u524d\u5c31\u88ab\u81ea\u52a8\u91ca\u653e\u6389\u3002\u4f46\u662f\u5728retain\u540e\uff0c\u4e00\u5b9a\u8981\u5728\u9002\u5f53\u7684\u65f6\u5019\u8fdb\u884c\u91ca\u653e\u3002<\/p>\n<p>\u5173\u4e8e\u7d22\u5f15\u8ba1\u6570(Reference Counting)\u7684\u95ee\u9898<\/p>\n<p>retain\u503c = \u7d22\u5f15\u8ba1\u6570(Reference Counting)<\/p>\n<p>NSArray\u5bf9\u8c61\u4f1aretain(retain\u503c\u52a0\u4e00)\u4efb\u4f55\u6570\u7ec4\u4e2d\u7684\u5bf9\u8c61\u3002\u5f53NSArray\u88ab\u5378\u8f7d(dealloc)\u7684\u65f6\u5019\uff0c\u6240\u6709\u6570\u7ec4\u4e2d\u7684\u5bf9\u8c61\u4f1a \u88ab \u6267\u884c\u4e00\u6b21\u91ca\u653e(retain\u503c\u51cf\u4e00)\u3002\u4e0d\u4ec5\u4ec5\u662fNSArray\uff0c\u4efb\u4f55\u6536\u96c6\u7c7b(Collection Classes)\u90fd\u6267\u884c\u7c7b\u4f3c\u64cd\u4f5c\u3002\u4f8b\u5982 NSDictionary\uff0c\u751a\u81f3UINavigationController\u3002<\/p>\n<p>Alloc\/init\u5efa\u7acb\u7684\u5bf9\u8c61\uff0c\u7d22\u5f15\u8ba1\u6570\u4e3a1\u3002\u65e0\u9700\u5c06\u5176\u518d\u6b21retain\u3002<\/p>\n<p>[NSArray array]\u548c[NSDate date]\u7b49\u201c\u65b9\u6cd5\u201d\u5efa\u7acb\u4e00\u4e2a\u7d22\u5f15\u8ba1\u6570\u4e3a1\u7684\u5bf9\u8c61\uff0c\u4f46\u662f\u4e5f\u662f\u4e00\u4e2a\u81ea\u52a8\u91ca\u653e\u5bf9\u8c61\u3002\u6240\u4ee5\u662f\u672c\u5730\u4e34\u65f6\u5bf9\u8c61\uff0c\u90a3\u4e48\u65e0\u6240\u8c13\u4e86\u3002\u5982\u679c\u662f\u6253\u7b97\u5728\u5168Class\u4e2d\u4f7f\u7528\u7684\u53d8\u91cf(iVar)\uff0c\u5219\u5fc5\u987bretain\u5b83\u3002<\/p>\n<p>\u7f3a\u7701\u7684\u7c7b\u65b9\u6cd5\u8fd4\u56de\u503c\u90fd\u88ab\u6267\u884c\u4e86\u201c\u81ea\u52a8\u91ca\u653e\u201d\u65b9\u6cd5\u3002(*\u5982\u4e0a\u4e2d\u7684NSArray)<\/p>\n<p>\u5728\u7c7b\u4e2d\u7684\u5378\u8f7d\u65b9\u6cd5\u201cdealloc\u201d\u4e2d\uff0crelease\u6240\u6709\u672a\u88ab\u5e73\u8861\u7684NS\u5bf9\u8c61\u3002(*\u6240\u6709\u672a\u88abautorelease\uff0c\u800cretain\u503c\u4e3a1\u7684)<\/p>\n<p><strong>66. C\u548cobj-c \u5982\u4f55\u6df7\u7528<\/strong><\/p>\n<p>\u7b54: 1).obj-c\u7684\u7f16\u8bd1\u5668\u5904\u7406\u540e\u7f00\u4e3am\u7684\u6587\u4ef6\u65f6\uff0c\u53ef\u4ee5\u8bc6\u522bobj-c\u548cc\u7684\u4ee3\u7801\uff0c\u5904\u7406mm\u6587\u4ef6\u53ef\u4ee5\u8bc6\u522bobj-c,c,c++\u4ee3\u7801\uff0c\u4f46cpp\u6587\u4ef6\u5fc5\u987b\u53ea\u80fd\u7528c\/c++\u4ee3\u7801\uff0c\u800c\u4e14cpp\u6587\u4ef6include\u7684\u5934\u6587\u4ef6\u4e2d\uff0c\u4e5f\u4e0d\u80fd\u51fa\u73b0obj-c\u7684\u4ee3\u7801\uff0c\u56e0\u4e3acpp\u53ea\u662fcpp<\/p>\n<p>2).\u5728mm\u6587\u4ef6\u4e2d\u6df7\u7528cpp\u76f4\u63a5\u4f7f\u7528\u5373\u53ef\uff0c\u6240\u4ee5obj-c\u6df7cpp\u4e0d\u662f\u95ee\u9898<\/p>\n<p>3).\u5728cpp\u4e2d\u6df7\u7528obj-c\u5176\u5b9e\u5c31\u662f\u4f7f\u7528obj-c\u7f16\u5199\u7684\u6a21\u5757\u662f\u6211\u4eec\u60f3\u8981\u7684\u3002<\/p>\n<p>\u5982\u679c\u6a21\u5757\u4ee5\u7c7b\u5b9e\u73b0\uff0c\u90a3\u4e48\u8981\u6309\u7167cpp class\u7684\u6807\u51c6\u5199\u7c7b\u7684\u5b9a\u4e49\uff0c\u5934\u6587\u4ef6\u4e2d\u4e0d\u80fd\u51fa\u73b0obj-c\u7684\u4e1c\u897f\uff0c\u5305\u62ec#import cocoa\u7684\u3002\u5b9e\u73b0\u6587\u4ef6\u4e2d\uff0c\u5373\u7c7b\u7684\u5b9e\u73b0\u4ee3\u7801\u4e2d\u53ef\u4ee5\u4f7f\u7528obj-c\u7684\u4e1c\u897f\uff0c\u53ef\u4ee5import,\u53ea\u662f\u540e\u7f00\u662fmm\u3002<\/p>\n<p>\u5982\u679c\u6a21\u5757\u4ee5\u51fd\u6570\u5b9e\u73b0\uff0c\u90a3\u4e48\u5934\u6587\u4ef6\u8981\u6309c\u7684\u683c\u5f0f\u58f0\u660e\u51fd\u6570\uff0c\u5b9e\u73b0\u6587\u4ef6\u4e2d\uff0cc++\u51fd\u6570\u5185\u90e8\u53ef\u4ee5\u7528obj-c\uff0c\u4f46\u540e\u7f00\u8fd8\u662fmm\u6216m\u3002<\/p>\n<p>\u603b\u7ed3\uff1a\u53ea\u8981cpp\u6587\u4ef6\u548ccpp include\u7684\u6587\u4ef6\u4e2d\u4e0d\u5305\u542bobj-c\u7684\u4e1c\u897f\u5c31\u53ef\u4ee5\u7528\u4e86\uff0ccpp\u6df7\u7528obj-c\u7684\u5173\u952e\u662f\u4f7f\u7528\u63a5\u53e3\uff0c\u800c\u4e0d\u80fd\u76f4\u63a5\u4f7f\u7528 \u5b9e\u73b0\u4ee3 \u7801\uff0c\u5b9e\u9645\u4e0acpp\u6df7\u7528\u7684\u662fobj-c\u7f16\u8bd1\u540e\u7684o\u6587\u4ef6\uff0c\u8fd9\u4e2a\u4e1c\u897f\u5176\u5b9e\u662f\u65e0\u5dee\u522b\u7684\uff0c\u6240\u4ee5\u53ef\u4ee5\u7528\u3002obj-c\u7684\u7f16\u8bd1\u5668\u652f\u6301cpp<br \/>\n<strong><br \/>\n67. Objective-C\u5806\u548c\u6808\u7684\u533a\u522b\uff1f<\/strong><\/p>\n<p>\u7b54: \u7ba1\u7406\u65b9\u5f0f\uff1a\u5bf9\u4e8e\u6808\u6765\u8bb2\uff0c\u662f\u7531\u7f16\u8bd1\u5668\u81ea\u52a8\u7ba1\u7406\uff0c\u65e0\u9700\u6211\u4eec\u624b\u5de5\u63a7\u5236\uff1b\u5bf9\u4e8e\u5806\u6765\u8bf4\uff0c\u91ca\u653e\u5de5\u4f5c\u7531\u7a0b\u5e8f\u5458\u63a7\u5236\uff0c\u5bb9\u6613\u4ea7\u751fmemory leak\u3002<\/p>\n<p>\u7533\u8bf7\u5927\u5c0f\uff1a<\/p>\n<p>\u6808\uff1a\u5728Windows\u4e0b,\u6808\u662f\u5411\u4f4e\u5730\u5740\u6269\u5c55\u7684\u6570\u636e\u7ed3\u6784\uff0c\u662f\u4e00\u5757\u8fde\u7eed\u7684\u5185\u5b58\u7684\u533a\u57df\u3002\u8fd9\u53e5\u8bdd\u7684\u610f\u601d\u662f\u6808\u9876\u7684\u5730\u5740\u548c\u6808\u7684\u6700\u5927\u5bb9\u91cf\u662f\u7cfb\u7edf\u9884\u5148\u89c4\u5b9a\u597d\u7684\uff0c\u5728 WINDOWS\u4e0b\uff0c\u6808\u7684\u5927\u5c0f\u662f2M\uff08\u4e5f\u6709\u7684\u8bf4\u662f1M\uff0c\u603b\u4e4b\u662f\u4e00\u4e2a\u7f16\u8bd1\u65f6\u5c31\u786e\u5b9a\u7684\u5e38\u6570\uff09\uff0c\u5982\u679c\u7533\u8bf7\u7684\u7a7a\u95f4\u8d85\u8fc7\u6808\u7684\u5269\u4f59\u7a7a\u95f4\u65f6\uff0c\u5c06\u63d0\u793aoverflow\u3002\u56e0 \u6b64\uff0c\u80fd\u4ece\u6808\u83b7\u5f97\u7684\u7a7a\u95f4\u8f83\u5c0f\u3002<\/p>\n<p>\u5806\uff1a\u5806\u662f\u5411\u9ad8\u5730\u5740\u6269\u5c55\u7684\u6570\u636e\u7ed3\u6784\uff0c\u662f\u4e0d\u8fde\u7eed\u7684\u5185\u5b58\u533a\u57df\u3002\u8fd9\u662f\u7531\u4e8e\u7cfb\u7edf\u662f\u7528\u94fe\u8868\u6765\u5b58\u50a8\u7684\u7a7a\u95f2\u5185\u5b58\u5730\u5740\u7684\uff0c\u81ea\u7136\u662f\u4e0d\u8fde\u7eed\u7684\uff0c\u800c\u94fe\u8868\u7684\u904d\u5386\u65b9\u5411\u662f\u7531\u4f4e\u5730\u5740\u5411\u9ad8\u5730\u5740\u3002\u5806\u7684\u5927\u5c0f\u53d7\u9650\u4e8e\u8ba1\u7b97\u673a\u7cfb\u7edf\u4e2d\u6709\u6548\u7684\u865a\u62df\u5185\u5b58\u3002\u7531\u6b64\u53ef\u89c1\uff0c\u5806\u83b7\u5f97\u7684\u7a7a\u95f4\u6bd4\u8f83\u7075\u6d3b\uff0c\u4e5f\u6bd4\u8f83\u5927\u3002<\/p>\n<p>\u788e\u7247\u95ee\u9898\uff1a\u5bf9\u4e8e\u5806\u6765\u8bb2\uff0c\u9891\u7e41\u7684new\/delete\u52bf\u5fc5\u4f1a\u9020\u6210\u5185\u5b58\u7a7a\u95f4\u7684\u4e0d\u8fde\u7eed\uff0c\u4ece\u800c\u9020\u6210\u5927\u91cf\u7684\u788e\u7247\uff0c\u4f7f\u7a0b\u5e8f\u6548\u7387\u964d\u4f4e\u3002\u5bf9\u4e8e\u6808\u6765\u8bb2\uff0c\u5219\u4e0d\u4f1a\u5b58\u5728\u8fd9\u4e2a\u95ee\u9898\uff0c\u56e0\u4e3a\u6808\u662f\u5148\u8fdb\u540e\u51fa\u7684\u961f\u5217\uff0c\u4ed6\u4eec\u662f\u5982\u6b64\u7684\u4e00\u4e00\u5bf9\u5e94\uff0c\u4ee5\u81f3\u4e8e\u6c38\u8fdc\u90fd\u4e0d\u53ef\u80fd\u6709\u4e00\u4e2a\u5185\u5b58\u5757\u4ece\u6808\u4e2d\u95f4\u5f39\u51fa<\/p>\n<p>\u5206\u914d\u65b9\u5f0f\uff1a\u5806\u90fd\u662f\u52a8\u6001\u5206\u914d\u7684\uff0c\u6ca1\u6709\u9759\u6001\u5206\u914d\u7684\u5806\u3002\u6808\u67092\u79cd\u5206\u914d\u65b9\u5f0f\uff1a\u9759\u6001\u5206\u914d\u548c\u52a8\u6001\u5206\u914d\u3002\u9759\u6001\u5206\u914d\u662f\u7f16\u8bd1\u5668\u5b8c\u6210\u7684\uff0c\u6bd4\u5982\u5c40\u90e8\u53d8\u91cf\u7684\u5206\u914d\u3002\u52a8\u6001\u5206\u914d\u7531alloca\u51fd\u6570\u8fdb\u884c\u5206\u914d\uff0c\u4f46\u662f\u6808\u7684\u52a8\u6001\u5206\u914d\u548c\u5806\u662f\u4e0d\u540c\u7684\uff0c\u4ed6\u7684\u52a8\u6001\u5206\u914d\u662f\u7531\u7f16\u8bd1\u5668\u8fdb\u884c\u91ca\u653e\uff0c\u65e0\u9700\u6211\u4eec\u624b\u5de5\u5b9e\u73b0\u3002<\/p>\n<p>\u5206\u914d\u6548\u7387\uff1a\u6808\u662f\u673a\u5668\u7cfb\u7edf\u63d0\u4f9b\u7684\u6570\u636e\u7ed3\u6784\uff0c\u8ba1\u7b97\u673a\u4f1a\u5728\u5e95\u5c42\u5bf9\u6808\u63d0\u4f9b\u652f\u6301\uff1a\u5206\u914d\u4e13\u95e8\u7684\u5bc4\u5b58\u5668\u5b58\u653e\u6808\u7684\u5730\u5740\uff0c\u538b\u6808\u51fa\u6808\u90fd\u6709\u4e13\u95e8\u7684\u6307\u4ee4\u6267\u884c\uff0c\u8fd9\u5c31\u51b3\u5b9a\u4e86\u6808\u7684\u6548\u7387\u6bd4\u8f83\u9ad8\u3002\u5806\u5219\u662fC\/C++\u51fd\u6570\u5e93\u63d0\u4f9b\u7684\uff0c\u5b83\u7684\u673a\u5236\u662f\u5f88\u590d\u6742\u7684\u3002<\/p>\n<p><strong>68. ViewController\u7684didReceiveMemoryWarning\u600e\u4e48\u88ab\u8c03\u7528\uff1a<\/strong><\/p>\n<p>\u7b54:[supper didReceiveMemoryWarning];<\/p>\n<p><strong>69.\u4ec0\u4e48\u65f6\u5019\u7528delegate,\u4ec0\u4e48\u65f6\u5019\u7528Notification?<\/strong><\/p>\n<p>\u7b54: delegate\u9488\u5bf9one-to-one\u5173\u7cfb\uff0c\u7528\u4e8esender\u63a5\u53d7\u5230reciever\u7684\u67d0\u4e2a\u529f\u80fd\u53cd\u9988\u503c\u3002<\/p>\n<p>notification\u9488\u5bf9one-to-one\/many\/none,reciver,\u7528\u4e8e\u901a\u77e5\u591a\u4e2aobject\u67d0\u4e2a\u4e8b\u4ef6\u3002<\/p>\n<p><strong>70.\u7528\u9884\u5904\u7406\u6307\u4ee4#define\u58f0\u660e\u4e00\u4e2a\u5e38\u6570\uff0c\u7528\u4ee5\u8868\u660e1\u5e74\u4e2d\u6709\u591a\u5c11\u79d2\uff08\u5ffd\u7565\u95f0\u5e74\u95ee\u9898\uff09<\/strong><\/p>\n<p>\u7b54:<\/p>\n<p>#define SECONDS_PER_YEAR (60 * 60 * 24 * 365)UL<\/p>\n<p>\u6211\u5728\u8fd9\u60f3\u770b\u5230\u51e0\u4ef6\u4e8b\u60c5\uff1a<\/p>\n<p>#define \u8bed\u6cd5\u7684\u57fa\u672c\u77e5\u8bc6\uff08\u4f8b\u5982\uff1a\u4e0d\u80fd\u4ee5\u5206\u53f7\u7ed3\u675f\uff0c\u62ec\u53f7\u7684\u4f7f\u7528\uff0c\u7b49\u7b49\uff09<\/p>\n<p>\u61c2\u5f97\u9884\u5904\u7406\u5668\u5c06\u4e3a\u4f60\u8ba1\u7b97\u5e38\u6570\u8868\u8fbe\u5f0f\u7684\u503c\uff0c\u56e0\u6b64\uff0c\u76f4\u63a5\u5199\u51fa\u4f60\u662f\u5982\u4f55\u8ba1\u7b97\u4e00\u5e74\u4e2d\u6709\u591a\u5c11\u79d2\u800c\u4e0d\u662f\u8ba1\u7b97\u51fa\u5b9e\u9645\u7684\u503c\uff0c\u662f\u66f4\u6e05\u6670\u800c\u6ca1\u6709\u4ee3\u4ef7\u7684\u3002<\/p>\n<p>\u610f\u8bc6\u5230\u8fd9\u4e2a\u8868\u8fbe\u5f0f\u5c06\u4f7f\u4e00\u4e2a16\u4f4d\u673a\u7684\u6574\u578b\u6570\u6ea2\u51fa-\u56e0\u6b64\u8981\u7528\u5230\u957f\u6574\u578b\u7b26\u53f7L,\u544a\u8bc9\u7f16\u8bd1\u5668\u8fd9\u4e2a\u5e38\u6570\u662f\u7684\u957f\u6574\u578b\u6570\u3002<\/p>\n<p>\u5982\u679c\u4f60\u5728\u4f60\u7684\u8868\u8fbe\u5f0f\u4e2d\u7528\u5230UL\uff08\u8868\u793a\u65e0\u7b26\u53f7\u957f\u6574\u578b\uff09\uff0c\u90a3\u4e48\u4f60\u6709\u4e86\u4e00\u4e2a\u597d\u7684\u8d77\u70b9\u3002\u8bb0\u4f4f\uff0c\u7b2c\u4e00\u5370\u8c61\u5f88\u91cd\u8981\u3002<\/p>\n<p><strong>71.\u5199\u4e00\u4e2a\u201d\u6807\u51c6\"\u5b8fMIN \uff0c\u8fd9\u4e2a\u5b8f\u8f93\u5165\u4e24\u4e2a\u53c2\u6570\u5e76\u8fd4\u56de\u8f83\u5c0f\u7684\u4e00\u4e2a\u3002<\/strong><\/p>\n<p>\u7b54\uff1a<\/p>\n<p>#define MIN(A,B) \uff08\uff08A\uff09 &lt;= (B) ? (A) : (B))<\/p>\n<p>\u8fd9\u4e2a\u6d4b\u8bd5\u662f\u4e3a\u4e0b\u9762\u7684\u76ee\u7684\u800c\u8bbe\u7684\uff1a<\/p>\n<p>\u6807\u8bc6#define\u5728\u5b8f\u4e2d\u5e94\u7528\u7684\u57fa\u672c\u77e5\u8bc6\u3002\u8fd9\u662f\u5f88\u91cd\u8981\u7684\uff0c\u56e0\u4e3a\u76f4\u5230\u5d4c\u5165(inline)\u64cd\u4f5c\u7b26\u53d8\u4e3a\u6807\u51c6C\u7684\u4e00\u90e8\u5206\uff0c\u5b8f\u662f\u65b9\u4fbf\u4ea7\u751f\u5d4c\u5165\u4ee3\u7801\u7684\u552f\u4e00\u65b9<\/p>\n<p>\u6cd5\uff0c<\/p>\n<p>\u5bf9\u4e8e\u5d4c\u5165\u5f0f\u7cfb\u7edf\u6765\u8bf4\uff0c\u4e3a\u4e86\u80fd\u8fbe\u5230\u8981\u6c42\u7684\u6027\u80fd\uff0c\u5d4c\u5165\u4ee3\u7801\u7ecf\u5e38\u662f\u5fc5\u987b\u7684\u65b9\u6cd5\u3002<\/p>\n<p>\u4e09\u91cd\u6761\u4ef6\u64cd\u4f5c\u7b26\u7684\u77e5\u8bc6\u3002\u8fd9\u4e2a\u64cd\u4f5c\u7b26\u5b58\u5728C\u8bed\u8a00\u4e2d\u7684\u539f\u56e0\u662f\u5b83\u4f7f\u5f97\u7f16\u8bd1\u5668\u80fd\u4ea7\u751f\u6bd4 if-then-else \u66f4\u4f18\u5316\u7684\u4ee3\u7801\uff0c\u4e86\u89e3\u8fd9\u4e2a\u7528\u6cd5\u662f\u5f88\u91cd\u8981\u7684\u3002<\/p>\n<p>\u61c2\u5f97\u5728\u5b8f\u4e2d\u5c0f\u5fc3\u5730\u628a\u53c2\u6570\u7528\u62ec\u53f7\u62ec\u8d77\u6765<\/p>\n<p>\u6211\u4e5f\u7528\u8fd9\u4e2a\u95ee\u9898\u5f00\u59cb\u8ba8\u8bba\u5b8f\u7684\u526f\u4f5c\u7528\uff0c\u4f8b\u5982\uff1a\u5f53\u4f60\u5199\u4e0b\u9762\u7684\u4ee3\u7801\u65f6\u4f1a\u53d1\u751f\u4ec0\u4e48\u4e8b\uff1f<\/p>\n<p>least = MIN(*p++, b);<\/p>\n<p>\u7ed3\u679c\u662f\uff1a<\/p>\n<p>((*p++) &lt;= (b) ? (*p++) : (*p++))<\/p>\n<p>\u8fd9\u4e2a\u8868\u8fbe\u5f0f\u4f1a\u4ea7\u751f\u526f\u4f5c\u7528\uff0c\u6307\u9488p\u4f1a\u4f5c\u4e09\u6b21++\u81ea\u589e\u64cd\u4f5c\u3002<\/p>\n<p><strong>72.\u5173\u952e\u5b57const\u6709\u4ec0\u4e48\u542b\u610f\uff1f\u4fee\u9970\u7c7b\u5462?static\u7684\u4f5c\u7528,\u7528\u4e8e\u7c7b\u5462?\u8fd8\u6709extern c\u7684\u4f5c\u7528<\/strong><\/p>\n<p>\u7b54\uff1a<\/p>\n<p>const \u610f\u5473\u7740\"\u53ea\u8bfb\"\uff0c\u4e0b\u9762\u7684\u58f0\u660e\u90fd\u662f\u4ec0\u4e48\u610f\u601d\uff1f<\/p>\n<p>const int a;<\/p>\n<p>int const a;<\/p>\n<p>const int *a;<\/p>\n<p>int * const a;<\/p>\n<p>int const * a const;<\/p>\n<p>\u524d\u4e24\u4e2a\u7684\u4f5c\u7528\u662f\u4e00\u6837\uff0ca\u662f\u4e00\u4e2a\u5e38\u6574\u578b\u6570\u3002<\/p>\n<p>\u7b2c\u4e09\u4e2a\u610f\u5473\u7740a\u662f\u4e00\u4e2a\u6307\u5411\u5e38\u6574\u578b\u6570\u7684\u6307\u9488\uff08\u4e5f\u5c31\u662f\uff0c\u6574\u578b\u6570\u662f\u4e0d\u53ef\u4fee\u6539\u7684\uff0c\u4f46\u6307\u9488\u53ef\u4ee5\uff09\u3002<\/p>\n<p>\u7b2c\u56db\u4e2a\u610f\u601da\u662f\u4e00\u4e2a\u6307\u5411\u6574\u578b\u6570\u7684\u5e38\u6307\u9488\uff08\u4e5f\u5c31\u662f\u8bf4\uff0c\u6307\u9488\u6307\u5411\u7684\u6574\u578b\u6570\u662f\u53ef\u4ee5\u4fee\u6539\u7684\uff0c\u4f46\u6307\u9488\u662f\u4e0d\u53ef\u4fee\u6539\u7684\uff09\u3002<\/p>\n<p>\u6700\u540e\u4e00\u4e2a\u610f\u5473\u7740a\u662f\u4e00\u4e2a\u6307\u5411\u5e38\u6574\u578b\u6570\u7684\u5e38\u6307\u9488\uff08\u4e5f\u5c31\u662f\u8bf4\uff0c\u6307\u9488\u6307\u5411\u7684\u6574\u578b\u6570\u662f\u4e0d\u53ef\u4fee\u6539\u7684\uff0c\u540c\u65f6\u6307\u9488\u4e5f\u662f\u4e0d\u53ef\u4fee\u6539\u7684\uff09\u3002<\/p>\n<p>\u7ed3\u8bba\uff1a<\/p>\n<p>\u5173\u952e\u5b57const\u7684\u4f5c\u7528\u662f\u4e3a\u7ed9\u8bfb\u4f60\u4ee3\u7801\u7684\u4eba\u4f20\u8fbe\u975e\u5e38\u6709\u7528\u7684\u4fe1\u606f\uff0c\u5b9e\u9645\u4e0a\uff0c\u58f0\u660e\u4e00\u4e2a\u53c2\u6570\u4e3a\u5e38\u91cf\u662f\u4e3a\u4e86\u544a\u8bc9\u4e86\u7528\u6237\u8fd9\u4e2a\u53c2\u6570\u7684\u5e94\u7528\u76ee\u7684\u3002<\/p>\n<p>\u5982\u679c\u4f60\u66fe\u82b1\u5f88\u591a\u65f6\u95f4\u6e05\u7406\u5176\u5b83\u4eba\u7559\u4e0b\u7684\u5783\u573e\uff0c\u4f60\u5c31\u4f1a\u5f88\u5feb\u5b66\u4f1a\u611f\u8c22\u8fd9\u70b9\u591a\u4f59\u7684\u4fe1\u606f\u3002\uff08\u5f53\u7136\uff0c\u61c2\u5f97\u7528const\u7684\u7a0b\u5e8f\u5458\u5f88\u5c11\u4f1a\u7559\u4e0b\u7684\u5783\u573e\u8ba9\u522b\u4eba\u6765\u6e05\u7406\u7684\uff09\u00a0 \u901a\u8fc7\u7ed9\u4f18\u5316\u5668\u4e00\u4e9b\u9644\u52a0\u7684\u4fe1\u606f\uff0c\u4f7f\u7528\u5173\u952e\u5b57const\u4e5f\u8bb8\u80fd\u4ea7\u751f\u66f4\u7d27\u51d1\u7684\u4ee3\u7801\u3002\u5408\u7406\u5730\u4f7f\u7528\u5173\u952e\u5b57const\u53ef\u4ee5\u4f7f\u7f16\u8bd1\u5668\u5f88\u81ea\u7136\u5730\u4fdd\u62a4\u90a3\u4e9b\u4e0d\u5e0c\u671b\u88ab\u6539\u53d8\u7684\u53c2\u6570\uff0c\u9632\u6b62\u5176\u88ab\u65e0\u610f\u7684\u4ee3\u7801\u4fee\u6539\u3002\u7b80\u800c\u8a00\u4e4b\uff0c\u8fd9\u6837\u53ef\u4ee5\u51cf\u5c11bug\u7684\u51fa\u73b0\u3002<\/p>\n<p>1).\u6b32\u963b\u6b62\u4e00\u4e2a\u53d8\u91cf\u88ab\u6539\u53d8\uff0c\u53ef\u4ee5\u4f7f\u7528 const \u5173\u952e\u5b57\u3002\u5728\u5b9a\u4e49\u8be5 const \u53d8\u91cf\u65f6\uff0c\u901a\u5e38\u9700\u8981\u5bf9\u5b83\u8fdb\u884c\u521d<\/p>\n<p>\u59cb\u5316\uff0c\u56e0\u4e3a\u4ee5\u540e\u5c31\u6ca1\u6709\u673a\u4f1a\u518d\u53bb\u6539\u53d8\u5b83\u4e86\uff1b<\/p>\n<p>2).\u5bf9\u6307\u9488\u6765\u8bf4\uff0c\u53ef\u4ee5\u6307\u5b9a\u6307\u9488\u672c\u8eab\u4e3a const\uff0c\u4e5f\u53ef\u4ee5\u6307\u5b9a\u6307\u9488\u6240\u6307\u7684\u6570\u636e\u4e3a const\uff0c\u6216\u4e8c\u8005\u540c\u65f6\u6307<\/p>\n<p>\u5b9a\u4e3a const\uff1b<\/p>\n<p>3).\u5728\u4e00\u4e2a\u51fd\u6570\u58f0\u660e\u4e2d\uff0cconst \u53ef\u4ee5\u4fee\u9970\u5f62\u53c2\uff0c\u8868\u660e\u5b83\u662f\u4e00\u4e2a\u8f93\u5165\u53c2\u6570\uff0c\u5728\u51fd\u6570\u5185\u90e8\u4e0d\u80fd\u6539\u53d8\u5176\u503c\uff1b<\/p>\n<p>4).\u5bf9\u4e8e\u7c7b\u7684\u6210\u5458\u51fd\u6570\uff0c\u82e5\u6307\u5b9a\u5176\u4e3a const \u7c7b\u578b\uff0c\u5219\u8868\u660e\u5176\u662f\u4e00\u4e2a\u5e38\u51fd\u6570\uff0c\u4e0d\u80fd\u4fee\u6539\u7c7b\u7684\u6210\u5458\u53d8\u91cf\uff1b<\/p>\n<p>5).\u5bf9\u4e8e\u7c7b\u7684\u6210\u5458\u51fd\u6570\uff0c\u6709\u65f6\u5019\u5fc5\u987b\u6307\u5b9a\u5176\u8fd4\u56de\u503c\u4e3a const \u7c7b\u578b\uff0c\u4ee5\u4f7f\u5f97\u5176\u8fd4\u56de\u503c\u4e0d\u4e3a\u201c\u5de6\u503c\u201d\u3002<\/p>\n<p><strong>73. \u5173\u952e\u5b57volatile\u6709\u4ec0\u4e48\u542b\u610f?\u5e76\u7ed9\u51fa\u4e09\u4e2a\u4e0d\u540c\u7684\u4f8b\u5b50\u3002<\/strong><\/p>\n<p>\u7b54\uff1a\u4e00\u4e2a\u5b9a\u4e49\u4e3a volatile\u7684\u53d8\u91cf\u662f\u8bf4\u8fd9\u53d8\u91cf\u53ef\u80fd\u4f1a\u88ab\u610f\u60f3\u4e0d\u5230\u5730\u6539\u53d8\uff0c\u8fd9\u6837\uff0c\u7f16\u8bd1\u5668\u5c31\u4e0d\u4f1a\u53bb\u5047\u8bbe\u8fd9\u4e2a\u53d8\u91cf\u7684\u503c\u4e86\u3002\u7cbe\u786e\u5730\u8bf4\u5c31\u662f\uff0c\u4f18\u5316\u5668\u5728\u7528\u5230\u8fd9\u4e2a\u53d8\u91cf\u65f6\u5fc5\u987b\u6bcf\u6b21\u90fd\u5c0f\u5fc3\u5730\u91cd\u65b0\u8bfb\u53d6\u8fd9\u4e2a\u53d8\u91cf\u7684\u503c\uff0c\u800c\u4e0d\u662f\u4f7f\u7528\u4fdd\u5b58\u5728\u5bc4\u5b58\u5668\u91cc\u7684\u5907\u4efd\u3002<\/p>\n<p>\u4e0b\u9762\u662fvolatile\u53d8\u91cf\u7684\u51e0\u4e2a\u4f8b\u5b50\uff1a<\/p>\n<p>\u5e76\u884c\u8bbe\u5907\u7684\u786c\u4ef6\u5bc4\u5b58\u5668\uff08\u5982\uff1a\u72b6\u6001\u5bc4\u5b58\u5668\uff09<\/p>\n<p>\u4e00\u4e2a\u4e2d\u65ad\u670d\u52a1\u5b50\u7a0b\u5e8f\u4e2d\u4f1a\u8bbf\u95ee\u5230\u7684\u975e\u81ea\u52a8\u53d8\u91cf(Non-automatic variables)<\/p>\n<p>\u591a\u7ebf\u7a0b\u5e94\u7528\u4e2d\u88ab\u51e0\u4e2a\u4efb\u52a1\u5171\u4eab\u7684\u53d8\u91cf<\/p>\n<p><strong>74. \u4e00\u4e2a\u53c2\u6570\u65e2\u53ef\u4ee5\u662fconst\u8fd8\u53ef\u4ee5\u662fvolatile\u5417\uff1f \u4e00\u4e2a\u6307\u9488\u53ef\u4ee5\u662fvolatile \u5417\uff1f\u89e3\u91ca\u4e3a\u4ec0\u4e48\u3002<\/strong><\/p>\n<p>\u7b54\uff1a1).\u662f\u7684\u3002\u4e00\u4e2a\u4f8b\u5b50\u662f\u53ea\u8bfb\u7684\u72b6\u6001\u5bc4\u5b58\u5668\u3002\u5b83\u662fvolatile\u56e0\u4e3a\u5b83\u53ef\u80fd\u88ab\u610f\u60f3\u4e0d\u5230\u5730\u6539\u53d8\u3002\u5b83\u662fconst\u56e0\u4e3a\u7a0b\u5e8f\u4e0d\u5e94\u8be5\u8bd5\u56fe\u53bb\u4fee\u6539\u5b83\u3002<\/p>\n<p>2).\u662f\u7684\u3002\u5c3d\u7ba1\u8fd9\u5e76\u4e0d\u5f88\u5e38\u89c1\u3002\u4e00\u4e2a\u4f8b\u5b50\u662f\u5f53\u4e00\u4e2a\u4e2d\u670d\u52a1\u5b50\u7a0b\u5e8f\u4fee\u8be5\u4e00\u4e2a\u6307\u5411\u4e00\u4e2abuffer\u7684\u6307\u9488\u65f6\u3002<\/p>\n<p><strong>75 . static \u5173\u952e\u5b57\u7684\u4f5c\u7528\uff1a<\/strong><\/p>\n<p>\u7b54\uff1a<\/p>\n<p>1).\u51fd\u6570\u4f53\u5185 static \u53d8\u91cf\u7684\u4f5c\u7528\u8303\u56f4\u4e3a\u8be5\u51fd\u6570\u4f53\uff0c\u4e0d\u540c\u4e8e auto \u53d8\u91cf\uff0c\u8be5\u53d8\u91cf\u7684\u5185\u5b58\u53ea\u88ab\u5206\u914d\u4e00\u6b21\uff0c<\/p>\n<p>\u56e0\u6b64\u5176\u503c\u5728\u4e0b\u6b21\u8c03\u7528\u65f6\u4ecd\u7ef4\u6301\u4e0a\u6b21\u7684\u503c\uff1b<\/p>\n<p>2).\u5728\u6a21\u5757\u5185\u7684 static \u5168\u5c40\u53d8\u91cf\u53ef\u4ee5\u88ab\u6a21\u5757\u5185\u6240\u7528\u51fd\u6570\u8bbf\u95ee\uff0c\u4f46\u4e0d\u80fd\u88ab\u6a21\u5757\u5916\u5176\u5b83\u51fd\u6570\u8bbf\u95ee\uff1b<\/p>\n<p>3).\u5728\u6a21\u5757\u5185\u7684 static \u51fd\u6570\u53ea\u53ef\u88ab\u8fd9\u4e00\u6a21\u5757\u5185\u7684\u5176\u5b83\u51fd\u6570\u8c03\u7528\uff0c\u8fd9\u4e2a\u51fd\u6570\u7684\u4f7f\u7528\u8303\u56f4\u88ab\u9650\u5236\u5728\u58f0\u660e<\/p>\n<p>\u5b83\u7684\u6a21\u5757\u5185\uff1b<\/p>\n<p>4).\u5728\u7c7b\u4e2d\u7684 static \u6210\u5458\u53d8\u91cf\u5c5e\u4e8e\u6574\u4e2a\u7c7b\u6240\u62e5\u6709\uff0c\u5bf9\u7c7b\u7684\u6240\u6709\u5bf9\u8c61\u53ea\u6709\u4e00\u4efd\u62f7\u8d1d\uff1b<\/p>\n<p>5).\u5728\u7c7b\u4e2d\u7684 static \u6210\u5458\u51fd\u6570\u5c5e\u4e8e\u6574\u4e2a\u7c7b\u6240\u62e5\u6709\uff0c\u8fd9\u4e2a\u51fd\u6570\u4e0d\u63a5\u6536 this \u6307\u9488\uff0c\u56e0\u800c\u53ea\u80fd\u8bbf\u95ee\u7c7b\u7684static \u6210\u5458\u53d8\u91cf\u3002<\/p>\n<p><strong>76. \u7ebf\u7a0b\u4e0e\u8fdb\u7a0b\u7684\u533a\u522b\u548c\u8054\u7cfb?<\/strong><\/p>\n<p>\u7b54\uff1a<\/p>\n<p>1). \u8fdb\u7a0b\u548c\u7ebf\u7a0b\u90fd\u662f\u7531\u64cd\u4f5c\u7cfb\u7edf\u6240\u4f53\u4f1a\u7684\u7a0b\u5e8f\u8fd0\u884c\u7684\u57fa\u672c\u5355\u5143\uff0c\u7cfb\u7edf\u5229\u7528\u8be5\u57fa\u672c\u5355\u5143\u5b9e\u73b0\u7cfb\u7edf\u5bf9\u5e94\u7528\u7684\u5e76\u53d1\u6027<\/p>\n<p>2). \u8fdb\u7a0b\u548c\u7ebf\u7a0b\u7684\u4e3b\u8981\u5dee\u522b\u5728\u4e8e\u5b83\u4eec\u662f\u4e0d\u540c\u7684\u64cd\u4f5c\u7cfb\u7edf\u8d44\u6e90\u7ba1\u7406\u65b9\u5f0f\u3002<\/p>\n<p>3). \u8fdb\u7a0b\u6709\u72ec\u7acb\u7684\u5730\u5740\u7a7a\u95f4\uff0c\u4e00\u4e2a\u8fdb\u7a0b\u5d29\u6e83\u540e\uff0c\u5728\u4fdd\u62a4\u6a21\u5f0f\u4e0b\u4e0d\u4f1a\u5bf9\u5176\u5b83\u8fdb\u7a0b\u4ea7\u751f\u5f71\u54cd\uff0c\u800c\u7ebf\u7a0b\u53ea\u662f\u4e00\u4e2a\u8fdb\u7a0b\u4e2d\u7684\u4e0d\u540c\u6267\u884c\u8def\u5f84\u3002<\/p>\n<p>4.)\u7ebf\u7a0b\u6709\u81ea\u5df1\u7684\u5806\u6808\u548c\u5c40\u90e8\u53d8\u91cf\uff0c\u4f46\u7ebf\u7a0b\u4e4b\u95f4\u6ca1\u6709\u5355\u72ec\u7684\u5730\u5740\u7a7a\u95f4\uff0c\u4e00\u4e2a\u7ebf\u7a0b\u6b7b\u6389\u5c31\u7b49\u4e8e\u6574\u4e2a\u8fdb\u7a0b\u6b7b\u6389\u3002\u6240\u4ee5\u591a\u8fdb\u7a0b\u7684\u7a0b\u5e8f\u8981\u6bd4\u591a\u7ebf\u7a0b\u7684\u7a0b\u5e8f\u5065\u58ee\uff0c\u4f46\u5728\u8fdb\u7a0b\u5207\u6362\u65f6\uff0c\u8017\u8d39\u8d44\u6e90\u8f83\u5927\uff0c\u6548\u7387\u8981\u5dee\u4e00\u4e9b\u3002<\/p>\n<p>5). \u4f46\u5bf9\u4e8e\u4e00\u4e9b\u8981\u6c42\u540c\u65f6\u8fdb\u884c\u5e76\u4e14\u53c8\u8981\u5171\u4eab\u67d0\u4e9b\u53d8\u91cf\u7684\u5e76\u53d1\u64cd\u4f5c\uff0c\u53ea\u80fd\u7528\u7ebf\u7a0b\uff0c\u4e0d\u80fd\u7528\u8fdb\u7a0b\u3002<\/p>\n<p><strong>77. \u5217\u4e3e\u51e0\u79cd\u8fdb\u7a0b\u7684\u540c\u6b65\u673a\u5236\uff0c\u5e76\u6bd4\u8f83\u5176\u4f18\u7f3a\u70b9\u3002<\/strong><\/p>\n<p>\u7b54\uff1a \u539f\u5b50\u64cd\u4f5c\u00a0 \u4fe1\u53f7\u91cf\u673a\u5236\u00a0 \u00a0 \u81ea\u65cb\u9501\u00a0 \u00a0 \u7ba1\u7a0b\uff0c\u4f1a\u5408\uff0c\u5206\u5e03\u5f0f\u7cfb\u7edf<\/p>\n<p><strong>78. \u8fdb\u7a0b\u4e4b\u95f4\u901a\u4fe1\u7684\u9014\u5f84<\/strong><\/p>\n<p>\u7b54\uff1a\u5171\u4eab\u5b58\u50a8\u7cfb\u7edf\u6d88\u606f\u4f20\u9012\u7cfb\u7edf\u7ba1\u9053\uff1a\u4ee5\u6587\u4ef6\u7cfb\u7edf\u4e3a\u57fa\u7840<\/p>\n<p><strong>79. \u8fdb\u7a0b\u6b7b\u9501\u7684\u539f\u56e0<\/strong><\/p>\n<p>\u7b54\uff1a\u8d44\u6e90\u7ade\u4e89\u53ca\u8fdb\u7a0b\u63a8\u8fdb\u987a\u5e8f\u975e\u6cd5<\/p>\n<p><strong>80. \u6b7b\u9501\u76844\u4e2a\u5fc5\u8981\u6761\u4ef6<\/strong><\/p>\n<p>\u7b54\uff1a\u4e92\u65a5\u3001\u8bf7\u6c42\u4fdd\u6301\u3001\u4e0d\u53ef\u5265\u593a\u3001\u73af\u8def<\/p>\n<p><strong>81. \u6b7b\u9501\u7684\u5904\u7406<\/strong><\/p>\n<p>\u7b54\uff1a\u9e35\u9e1f\u7b56\u7565\u3001\u9884\u9632\u7b56\u7565\u3001\u907f\u514d\u7b56\u7565\u3001\u68c0\u6d4b\u4e0e\u89e3\u9664\u6b7b\u9501<\/p>\n<p><strong>82. cocoa touch\u6846\u67b6<\/strong><\/p>\n<p>\u7b54\uff1aiPhone OS \u5e94\u7528\u7a0b\u5e8f\u7684\u57fa\u7840 Cocoa Touch \u6846\u67b6\u91cd\u7528\u4e86\u8bb8\u591a Mac \u7cfb\u7edf\u7684\u6210\u719f\u6a21\u5f0f\uff0c\u4f46\u662f\u5b83\u66f4\u591a\u5730\u4e13\u6ce8\u4e8e\u89e6\u6478\u7684\u63a5\u53e3\u548c\u4f18\u5316\u3002<\/p>\n<p>UIKit \u4e3a\u60a8\u63d0\u4f9b\u4e86\u5728 iPhone OS \u4e0a\u5b9e\u73b0\u56fe\u5f62\uff0c\u4e8b\u4ef6\u9a71\u52a8\u7a0b\u5e8f\u7684\u57fa\u672c\u5de5\u5177\uff0c\u5176\u5efa\u7acb\u5728\u548c Mac OS X \u4e2d\u4e00\u6837\u7684 Foundation \u6846\u67b6\u4e0a\uff0c\u5305\u62ec\u6587\u4ef6\u5904\u7406\uff0c\u7f51\u7edc\uff0c\u5b57\u7b26\u4e32\u64cd\u4f5c\u7b49\u3002<\/p>\n<p>Cocoa Touch \u5177\u6709\u548c iPhone \u7528\u6237\u63a5\u53e3\u4e00\u81f4\u7684\u7279\u6b8a\u8bbe\u8ba1\u3002\u6709\u4e86 UIKit\uff0c\u60a8\u53ef\u4ee5\u4f7f\u7528 iPhone OS \u4e0a\u7684\u72ec\u7279\u7684\u56fe\u5f62\u63a5\u53e3\u63a7\u4ef6\uff0c\u6309\u94ae\uff0c\u4ee5\u53ca\u5168\u5c4f\u89c6\u56fe\u7684\u529f\u80fd\uff0c\u60a8\u8fd8\u53ef\u4ee5\u4f7f\u7528\u52a0\u901f\u4eea\u548c\u591a\u70b9\u89e6\u6478\u624b\u52bf\u6765\u63a7\u5236\u60a8\u7684\u5e94\u7528\u3002<\/p>\n<p>\u5404\u8272\u4ff1\u5168\u7684\u6846\u67b6 \u9664\u4e86UIKit \u5916\uff0cCocoa Touch \u5305\u542b\u4e86\u521b\u5efa\u4e16\u754c\u4e00\u6d41 iPhone \u5e94\u7528\u7a0b\u5e8f\u9700\u8981\u7684\u6240\u6709\u6846\u67b6\uff0c\u4ece\u4e09\u7ef4\u56fe\u5f62\uff0c\u5230\u4e13\u4e1a\u97f3\u6548\uff0c\u751a\u81f3\u63d0\u4f9b\u8bbe\u5907\u8bbf\u95ee API \u4ee5\u63a7\u5236\u6444\u50cf\u5934\uff0c\u6216\u901a\u8fc7 GPS \u83b7\u77e5\u5f53\u524d\u4f4d\u7f6e\u3002<\/p>\n<p>Cocoa Touch \u65e2\u5305\u542b\u53ea\u9700\u8981\u51e0\u884c\u4ee3\u7801\u5c31\u53ef\u4ee5\u5b8c\u6210\u5168\u90e8\u4efb\u52a1\u7684\u5f3a\u5927\u7684 Objective-C \u6846\u67b6\uff0c\u4e5f\u5728\u9700\u8981\u65f6\u63d0\u4f9b\u57fa\u7840\u7684 C \u8bed\u8a00 API \u6765\u76f4\u63a5\u8bbf\u95ee\u7cfb\u7edf\u3002\u8fd9\u4e9b\u6846\u67b6\u5305\u62ec\uff1a<\/p>\n<p>Core Animation\uff1a\u901a\u8fc7 Core Animation\uff0c\u60a8\u5c31\u53ef\u4ee5\u901a\u8fc7\u4e00\u4e2a\u57fa\u4e8e\u7ec4\u5408\u72ec\u7acb\u56fe\u5c42\u7684\u7b80\u5355\u7684\u7f16\u7a0b\u6a21\u578b\u6765\u521b\u5efa\u4e30\u5bcc\u7684\u7528\u6237\u4f53\u9a8c\u3002<\/p>\n<p>Core Audio\uff1aCore Audio \u662f\u64ad\u653e\uff0c\u5904\u7406\u548c\u5f55\u5236\u97f3\u9891\u7684\u4e13\u4e1a\u6280\u672f\uff0c\u80fd\u591f\u8f7b\u677e\u4e3a\u60a8\u7684\u5e94\u7528\u7a0b\u5e8f\u6dfb\u52a0\u5f3a\u5927\u7684\u97f3\u9891\u529f\u80fd\u3002<\/p>\n<p>Core Data\uff1a\u63d0\u4f9b\u4e86\u4e00\u4e2a\u9762\u5411\u5bf9\u8c61\u7684\u6570\u636e\u7ba1\u7406\u89e3\u51b3\u65b9\u6848\uff0c\u5b83\u6613\u4e8e\u4f7f\u7528\u548c\u7406\u89e3\uff0c\u751a\u81f3\u53ef\u5904\u7406\u4efb\u4f55\u5e94\u7528\u6216\u5927\u6216\u5c0f\u7684\u6570\u636e\u6a21\u578b\u3002<\/p>\n<p>\u529f\u80fd\u5217\u8868\uff1a\u6846\u67b6\u5206\u7c7b<\/p>\n<p>\u4e0b\u9762\u662f Cocoa Touch \u4e2d\u4e00\u5c0f\u90e8\u5206\u53ef\u7528\u7684\u6846\u67b6\uff1a<\/p>\n<p>\u97f3\u9891\u548c\u89c6\u9891\uff1aCore Audio \uff0cOpenAL \uff0cMedia Library \uff0cAV Foundation<\/p>\n<p>\u6570\u636e\u7ba1\u7406 \uff1aCore Data \uff0cSQLite<\/p>\n<p>\u56fe\u5f62\u548c\u52a8\u753b \uff1aCore Animation \uff0cOpenGL ES \uff0cQuartz 2D<\/p>\n<p>\u7f51\u7edc\uff1aBonjour \uff0cWebKit \uff0cBSD Sockets<\/p>\n<p>\u7528\u6237\u5e94\u7528\uff1aAddress Book \uff0cCore Location \uff0cMap Kit \uff0cStore Kit<\/p>\n<p><strong>83. \u81ea\u52a8\u91ca\u653e\u6c60\u662f\u4ec0\u4e48,\u5982\u4f55\u5de5\u4f5c<\/strong><\/p>\n<p>\u7b54\uff1a\u5f53\u60a8\u5411\u4e00\u4e2a\u5bf9\u8c61\u53d1\u9001\u4e00\u4e2aautorelease\u6d88\u606f\u65f6\uff0cCocoa\u5c31\u4f1a\u5c06\u8be5\u5bf9\u8c61\u7684\u4e00\u4e2a\u5f15\u7528\u653e\u5165\u5230\u6700\u65b0\u7684\u81ea\u52a8\u91ca\u653e.\u5b83\u4ecd\u7136\u662f\u4e2a\u6b63\u5f53\u7684\u5bf9\u8c61\uff0c\u56e0\u6b64\u81ea\u52a8\u91ca\u653e\u6c60\u5b9a\u4e49\u7684\u4f5c\u7528\u57df\u5185\u7684\u5176\u5b83\u5bf9\u8c61\u53ef\u4ee5\u5411\u5b83\u53d1\u9001\u6d88\u606f\u3002\u5f53\u7a0b\u5e8f\u6267\u884c\u5230\u4f5c\u7528\u57df\u7ed3\u675f\u7684\u4f4d\u7f6e\u65f6\uff0c\u81ea\u52a8\u91ca\u653e\u6c60\u5c31\u4f1a\u88ab\u91ca\u653e\uff0c\u6c60\u4e2d\u7684\u6240\u6709\u5bf9\u8c61\u4e5f\u5c31\u88ab\u91ca\u653e\u3002<\/p>\n<p><strong>84. Objective-C\u7684\u4f18\u7f3a\u70b9\u3002<\/strong><\/p>\n<p>\u7b54\uff1aobjc\u4f18\u70b9\uff1a<\/p>\n<p>1).\u00a0 Cateogies<\/p>\n<p>2).\u00a0 Posing<\/p>\n<p>3). \u52a8\u6001\u8bc6\u522b<\/p>\n<p>4).\u6307\u6807\u8ba1\u7b97<\/p>\n<p>5).\u5f39\u6027\u8baf\u606f\u4f20\u9012<\/p>\n<p>6).\u4e0d\u662f\u4e00\u4e2a\u8fc7\u5ea6\u590d\u6742\u7684 C \u884d\u751f\u8bed\u8a00<\/p>\n<p>7).Objective-C \u4e0e C++ \u53ef\u6df7\u5408\u7f16\u7a0b<\/p>\n<p>objc\u7f3a\u70b9:<\/p>\n<p>1).\u4e0d\u652f\u63f4\u547d\u540d\u7a7a\u95f4<\/p>\n<p>2).\u4e0d\u652f\u6301\u8fd0\u7b97\u7b26\u91cd\u8f7d<\/p>\n<p>3).\u4e0d\u652f\u6301\u591a\u91cd\u7ee7\u627f<\/p>\n<p>4).\u4f7f\u7528\u52a8\u6001\u8fd0\u884c\u65f6\u7c7b\u578b\uff0c\u6240\u6709\u7684\u65b9\u6cd5\u90fd\u662f\u51fd\u6570\u8c03\u7528\uff0c\u6240\u4ee5\u5f88\u591a\u7f16\u8bd1\u65f6\u4f18\u5316\u65b9\u6cd5\u90fd\u7528\u4e0d\u5230\u3002\uff08\u5982\u5185\u8054\u51fd\u6570\u7b49\uff09\uff0c\u6027\u80fd\u4f4e\u52a3\u3002<\/p>\n<p><strong>85. sprintf,strcpy,memcpy\u4f7f\u7528\u4e0a\u6709\u4ec0\u4e48\u8981\u6ce8\u610f\u7684\u5730\u65b9\u3002<\/strong><\/p>\n<p>\u7b54\uff1a<\/p>\n<p>1). sprintf\u662f\u683c\u5f0f\u5316\u51fd\u6570\u3002\u5c06\u4e00\u6bb5\u6570\u636e\u901a\u8fc7\u7279\u5b9a\u7684\u683c\u5f0f\uff0c\u683c\u5f0f\u5316\u5230\u4e00\u4e2a\u5b57\u7b26\u4e32\u7f13\u51b2\u533a\u4e2d\u53bb\u3002sprintf\u683c\u5f0f\u5316\u7684\u51fd\u6570\u7684\u957f\u5ea6\u4e0d\u53ef\u63a7\uff0c\u6709\u53ef\u80fd\u683c\u5f0f\u5316\u540e\u7684\u5b57\u7b26\u4e32\u4f1a\u8d85\u51fa\u7f13\u51b2\u533a\u7684\u5927\u5c0f\uff0c\u9020\u6210\u6ea2\u51fa\u3002<\/p>\n<p>2).strcpy\u662f\u4e00\u4e2a\u5b57\u7b26\u4e32\u62f7\u8d1d\u7684\u51fd\u6570\uff0c\u5b83\u7684\u51fd\u6570\u539f\u578b\u4e3astrcpy(char *dst, const char *src<\/p>\n<p>\u5c06src\u5f00\u59cb\u7684\u4e00\u6bb5\u5b57\u7b26\u4e32\u62f7\u8d1d\u5230dst\u5f00\u59cb\u7684\u5185\u5b58\u4e2d\u53bb\uff0c\u7ed3\u675f\u7684\u6807\u5fd7\u7b26\u53f7\u4e3a \u2018\\0'\uff0c\u7531\u4e8e\u62f7\u8d1d\u7684\u957f\u5ea6\u4e0d\u662f\u7531\u6211\u4eec\u81ea\u5df1\u63a7\u5236\u7684\uff0c\u6240\u4ee5\u8fd9\u4e2a\u5b57\u7b26\u4e32\u62f7\u8d1d\u5f88\u5bb9\u6613\u51fa\u9519\u3002<\/p>\n<p>3). memcpy\u662f\u5177\u5907\u5b57\u7b26\u4e32\u62f7\u8d1d\u529f\u80fd\u7684\u51fd\u6570\uff0c\u8fd9\u662f\u4e00\u4e2a\u5185\u5b58\u62f7\u8d1d\u51fd\u6570\uff0c\u5b83\u7684\u51fd\u6570\u539f\u578b\u4e3amemcpy(char *dst, const char* src, unsigned int len);\u5c06\u957f\u5ea6\u4e3alen\u7684\u4e00\u6bb5\u5185\u5b58\uff0c\u4ecesrc\u62f7\u8d1d\u5230dst\u4e2d\u53bb\uff0c\u8fd9\u4e2a\u51fd\u6570\u7684\u957f\u5ea6\u53ef\u63a7\u3002\u4f46\u662f\u4f1a\u6709\u5185\u5b58\u53e0\u52a0\u7684\u95ee\u9898\u3002<\/p>\n<p><strong>86. readwrite\uff0creadonly\uff0cassign\uff0cretain\uff0ccopy\uff0cnonatomic \u5c5e\u6027\u7684\u4f5c\u7528<\/strong><\/p>\n<p>\u7b54\uff1a@property\u662f\u4e00\u4e2a\u5c5e\u6027\u8bbf\u95ee\u58f0\u660e\uff0c\u6269\u53f7\u5185\u652f\u6301\u4ee5\u4e0b\u51e0\u4e2a\u5c5e\u6027\uff1a<\/p>\n<p>1).getter=getterName\uff0csetter=setterName\uff0c\u8bbe\u7f6esetter\u4e0e getter\u7684\u65b9\u6cd5\u540d<\/p>\n<p>2).readwrite,readonly\uff0c\u8bbe\u7f6e\u53ef\u4f9b\u8bbf\u95ee\u7ea7\u522b<\/p>\n<p>2).assign\uff0csetter\u65b9\u6cd5\u76f4\u63a5\u8d4b\u503c\uff0c\u4e0d\u8fdb\u884c\u4efb\u4f55retain\u64cd\u4f5c\uff0c\u4e3a\u4e86\u89e3\u51b3\u539f\u7c7b\u578b\u4e0e\u73af\u5faa\u5f15\u7528\u95ee\u9898<\/p>\n<p>3).retain\uff0csetter\u65b9\u6cd5\u5bf9\u53c2\u6570\u8fdb\u884crelease\u65e7\u503c\u518dretain\u65b0\u503c\uff0c\u6240\u6709\u5b9e\u73b0\u90fd\u662f\u8fd9\u4e2a\u987a\u5e8f(CC\u4e0a\u6709\u76f8\u5173\u8d44\u6599)<\/p>\n<p>4).copy\uff0csetter\u65b9\u6cd5\u8fdb\u884cCopy\u64cd\u4f5c\uff0c\u4e0eretain\u5904\u7406\u6d41\u7a0b\u4e00\u6837\uff0c\u5148\u65e7\u503crelease\uff0c\u518d Copy\u51fa\u65b0\u7684\u5bf9\u8c61\uff0cretainCount\u4e3a1\u3002\u8fd9\u662f\u4e3a\u4e86\u51cf\u5c11\u5bf9\u4e0a\u4e0b\u6587\u7684\u4f9d\u8d56\u800c\u5f15\u5165\u7684\u673a\u5236\u3002<\/p>\n<p>5).nonatomic\uff0c\u975e\u539f\u5b50\u6027\u8bbf\u95ee\uff0c\u4e0d\u52a0\u540c\u6b65\uff0c\u591a\u7ebf\u7a0b\u5e76\u53d1\u8bbf\u95ee\u4f1a\u63d0\u9ad8\u6027\u80fd\u3002\u6ce8\u610f\uff0c\u5982\u679c\u4e0d\u52a0\u6b64\u5c5e\u6027\uff0c\u5219\u9ed8\u8ba4\u662f\u4e24\u4e2a\u8bbf\u95ee\u65b9\u6cd5\u90fd\u4e3a\u539f\u5b50\u578b\u4e8b\u52a1\u8bbf\u95ee\u3002\u9501\u88ab\u52a0\u5230\u6240\u5c5e\u5bf9\u8c61\u5b9e\u4f8b\u7ea7\u3002<\/p>\n<p><strong>87. http\u548cscoket\u901a\u4fe1\u7684\u533a\u522b\u3002<\/strong><\/p>\n<p>\u7b54\uff1a http\u662f\u5ba2\u6237\u7aef\u7528http\u534f\u8bae\u8fdb\u884c\u8bf7\u6c42\uff0c\u53d1\u9001\u8bf7\u6c42\u65f6\u5019\u9700\u8981\u5c01\u88c5http\u8bf7\u6c42\u5934\uff0c\u5e76\u7ed1\u5b9a\u8bf7\u6c42\u7684\u6570\u636e\uff0c\u670d\u52a1\u5668\u4e00\u822c\u6709web\u670d\u52a1\u5668\u914d\u5408\uff08\u5f53\u7136\u4e5f\u975e\u7edd\u5bf9\uff09\u3002 http\u8bf7\u6c42\u65b9\u5f0f\u4e3a\u5ba2\u6237\u7aef\u4e3b\u52a8\u53d1\u8d77\u8bf7\u6c42\uff0c\u670d\u52a1\u5668\u624d\u80fd\u7ed9\u54cd\u5e94\uff0c\u4e00\u6b21\u8bf7\u6c42\u5b8c\u6bd5\u540e\u5219\u65ad\u5f00\u8fde\u63a5\uff0c\u4ee5\u8282\u7701\u8d44\u6e90\u3002\u670d\u52a1\u5668\u4e0d\u80fd\u4e3b\u52a8\u7ed9\u5ba2\u6237\u7aef\u54cd\u5e94\uff08\u9664\u975e\u91c7\u53d6http\u957f\u8fde\u63a5 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TCP\u548cUDP\u7684\u533a\u522b<\/strong><\/p>\n<p>\u7b54\uff1a TCP\u5168\u79f0\u662fTransmission Control Protocol\uff0c\u4e2d\u6587\u540d\u4e3a\u4f20\u8f93\u63a7\u5236\u534f\u8bae\uff0c\u5b83\u53ef\u4ee5\u63d0\u4f9b\u53ef\u9760\u7684\u3001\u9762\u5411\u8fde\u63a5\u7684\u7f51\u7edc\u6570\u636e\u4f20\u9012\u670d\u52a1\u3002\u4f20\u8f93\u63a7\u5236\u534f\u8bae\u4e3b\u8981\u5305\u542b\u4e0b\u5217\u4efb\u52a1\u548c\u529f\u80fd\uff1a<\/p>\n<p>* \u786e\u4fddIP\u6570\u636e\u62a5\u7684\u6210\u529f\u4f20\u9012\u3002<\/p>\n<p>* \u5bf9\u7a0b\u5e8f\u53d1\u9001\u7684\u5927\u5757\u6570\u636e\u8fdb\u884c\u5206\u6bb5\u548c\u91cd\u7ec4\u3002<\/p>\n<p>* \u786e\u4fdd\u6b63\u786e\u6392\u5e8f\u53ca\u6309\u987a\u5e8f\u4f20\u9012\u5206\u6bb5\u7684\u6570\u636e\u3002<\/p>\n<p>* 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\u5982\u679ca\u548cb\u90fd\u8981\u63d0\u4ea4\u7ed9\u670d\u52a1\u5668\uff0c\u5e76\u4e14\u540c\u65f6\u4fee\u6539\u4e86\u540c\u4e00\u4e2a\u65b9\u6cd5\uff0c\u5c31\u4f1a\u4ea7\u751f\u4ee3\u7801\u51b2\u7a81\uff0c\u5982\u679ca\u5148\u63d0\u4ea4\uff0c\u90a3\u4e48b\u63d0\u4ea4\u65f6\uff0c\u670d\u52a1\u5668\u53ef\u4ee5\u63d0\u793a\u51b2\u7a81\u7684\u4ee3\u7801\uff0cb\u53ef\u4ee5\u6e05\u6670\u7684\u770b\u5230\uff0c\u5e76\u505a\u51fa\u76f8\u5e94\u7684\u4fee\u6539\u6216\u878d\u5408\u540e\u518d\u63d0\u4ea4\u5230\u670d\u52a1\u5668\u3002<\/p>\n<p><strong>90. \u4ec0\u4e48\u662fpush\u3002<\/strong><\/p>\n<p>\u7b54\uff1a \u5ba2\u6237\u7aef\u7a0b\u5e8f\u7559\u4e0b\u540e\u95e8\u7aef\u53e3\uff0c\u5ba2\u6237\u7aef\u603b\u662f\u76d1\u542c\u9488\u5bf9\u8fd9\u4e2a\u540e\u95e8\u7684\u8bf7\u6c42\uff0c\u4e8e\u662f \u670d\u52a1\u5668\u53ef\u4ee5\u4e3b\u52a8\u50cf\u8fd9\u4e2a\u7aef\u53e3\u63a8\u9001\u6d88\u606f\u3002<\/p>\n<p><strong>91. \u9759\u6001\u94fe\u63a5\u5e93<\/strong><\/p>\n<p>\u7b54\uff1a\u6b64\u4e3a.a\u6587\u4ef6\uff0c\u76f8\u5f53\u4e8ejava\u91cc\u7684jar\u5305\uff0c\u628a\u4e00\u4e9b\u7c7b\u7f16\u8bd1\u5230\u4e00\u4e2a\u5305\u4e2d\uff0c\u5728\u4e0d\u540c\u7684\u5de5\u7a0b\u4e2d\u5982\u679c\u5bfc\u5165\u6b64\u6587\u4ef6\u5c31\u53ef\u4ee5\u4f7f\u7528\u91cc\u9762\u7684\u7c7b\uff0c\u5177\u4f53\u4f7f\u7528\u4f9d\u7136\u662f#import \u201c xx.h\u201d\u3002<\/p>\n<p><strong>92. fmmpeg\u6846\u67b6<\/strong><\/p>\n<p>\u7b54\uff1a \u97f3\u89c6\u9891\u7f16\u89e3\u7801\u6846\u67b6\uff0c\u5185\u90e8\u4f7f\u7528UDP\u534f\u8bae\u9488\u5bf9\u6d41\u5a92\u4f53\u5f00\u53d1\uff0c\u5185\u90e8\u5f00\u8f9f\u4e86\u516d\u4e2a\u7aef\u53e3\u6765\u63a5\u53d7\u6d41\u5a92\u4f53\u6570\u636e\uff0c\u5b8c\u6210\u5feb\u901f\u63a5\u53d7\u4e4b\u76ee\u7684\u3002<\/p>\n<p><strong>93. fmdb\u6846\u67b6<\/strong><\/p>\n<p>\u7b54\uff1a\u6570\u636e\u5e93\u6846\u67b6\uff0c\u5bf9sqllite\u7684\u6570\u636e\u64cd\u4f5c\u8fdb\u884c\u4e86\u5c01\u88c5\uff0c\u4f7f\u7528\u7740\u53ef\u628a\u7cbe\u529b\u90fd\u653e\u5728sql\u8bed\u53e5\u4e0a\u9762\u3002<\/p>\n<p><strong>94. 320\u6846\u67b6<\/strong><\/p>\n<p>\u7b54\uff1a ui\u6846\u67b6\uff0c\u5bfc\u5165320\u5de5\u7a0b\u4f5c\u4e3a\u6846\u67b6\u5305\u5982\u540c\u6dfb\u52a0\u4e00\u4e2a\u666e\u901a\u6846\u67b6\u4e00\u6837\u3002cover(open)\u00a0 flower\u6846\u67b6 (2d \u4eff\u5c04\u6280\u672f)\uff0c\u5185\u90e8\u6838\u5fc3\u7c7b\u662fCATransform3D.<\/p>\n<p><strong>94. \u4ec0\u4e48\u662f\u6c99\u76d2\u6a21\u578b\uff1f\u54ea\u4e9b\u64cd\u4f5c\u662f\u5c5e\u4e8e\u79c1\u6709api\u8303\u7574?<\/strong><\/p>\n<p>\u7b54\uff1a\u67d0\u4e2aiphone\u5de5\u7a0b\u8fdb\u884c\u6587\u4ef6\u64cd\u4f5c\u6709\u6b64\u5de5\u7a0b\u5bf9\u5e94\u7684\u6307\u5b9a\u7684\u4f4d\u7f6e\uff0c\u4e0d\u80fd\u903e\u8d8a\u3002<\/p>\n<p>iphone\u6c99\u7bb1\u6a21\u578b\u7684\u6709\u56db\u4e2a\u6587\u4ef6\u5939documents\uff0ctmp\uff0capp\uff0cLibrary\uff0c\u6c38\u4e45\u6570\u636e\u5b58\u50a8\u4e00\u822c\u653edocuments\u6587\u4ef6\u5939\uff0c\u5f97\u5230\u6a21\u62df\u5668\u7684\u8def\u5f84\u7684\u53ef\u4f7f\u7528NSHomeDirectory()\u65b9\u6cd5\u3002Nsuserdefaults\u4fdd\u5b58\u7684\u6587\u4ef6\u5728tmp\u6587\u4ef6\u5939\u91cc\u3002<\/p>\n<p><strong>95. \u5728\u4e00\u4e2a\u5bf9\u8c61\u7684\u65b9\u6cd5\u91cc\u9762\uff1aself.name= \u201cobject\u201d\uff1b\u548c name =\u201dobject\u201d \u6709\u4ec0\u4e48\u4e0d\u540c\u5417?<\/strong><\/p>\n<p>\u7b54\uff1aself.name =\u201dobject\u201d\uff1a\u4f1a\u8c03\u7528\u5bf9\u8c61\u7684setName()\u65b9\u6cd5\uff1b<\/p>\n<p>name = \u201cobject\u201d\uff1a\u4f1a\u76f4\u63a5\u628aobject\u8d4b\u503c\u7ed9\u5f53\u524d\u5bf9\u8c61\u7684name\u5c5e\u6027\u3002<\/p>\n<p><strong>96. \u8bf7\u7b80\u8981\u8bf4\u660eviewDidLoad\u548cviewDidUnload\u4f55\u65f6\u8c03\u7528<\/strong><\/p>\n<p>\u7b54\uff1aviewDidLoad\u5728view\u4ecenib\u6587\u4ef6\u521d\u59cb\u5316\u65f6\u8c03\u7528\uff0cloadView\u5728controller\u7684view\u4e3anil\u65f6\u8c03\u7528\u3002\u6b64\u65b9\u6cd5\u5728\u7f16\u7a0b\u5b9e\u73b0view\u65f6\u8c03\u7528\uff0cview\u63a7\u5236\u5668\u9ed8\u8ba4\u4f1a\u6ce8\u518cmemory warning notification\uff0c\u5f53view controller\u7684\u4efb\u4f55view\u6ca1\u6709\u7528\u7684\u65f6\u5019\uff0cviewDidUnload\u4f1a\u88ab\u8c03\u7528\uff0c\u5728\u8fd9\u91cc\u5b9e\u73b0\u5c06retain\u7684view release\uff0c\u5982\u679c\u662fretain\u7684IBOutlet view 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\u7b80\u8ff0\u5185\u5b58\u5206\u533a\u60c5\u51b5<\/strong><\/p>\n<p>\u7b54\uff1a<\/p>\n<p>1).\u4ee3\u7801\u533a\uff1a\u5b58\u653e\u51fd\u6570\u4e8c\u8fdb\u5236\u4ee3\u7801<\/p>\n<p>2).\u6570\u636e\u533a\uff1a\u7cfb\u7edf\u8fd0\u884c\u65f6\u7533\u8bf7\u5185\u5b58\u5e76\u521d\u59cb\u5316\uff0c\u7cfb\u7edf\u9000\u51fa\u65f6\u7531\u7cfb\u7edf\u91ca\u653e\u3002\u5b58\u653e\u5168\u5c40\u53d8\u91cf\u3001\u9759\u6001\u53d8\u91cf\u3001\u5e38\u91cf<\/p>\n<p>3).\u5806\u533a\uff1a\u901a\u8fc7malloc\u7b49\u51fd\u6570\u6216new\u7b49\u64cd\u4f5c\u7b26\u52a8\u6001\u7533\u8bf7\u5f97\u5230\uff0c\u9700\u7a0b\u5e8f\u5458\u624b\u52a8\u7533\u8bf7\u548c\u91ca\u653e<\/p>\n<p>4).\u6808\u533a\uff1a\u51fd\u6570\u6a21\u5757\u5185\u7533\u8bf7\uff0c\u51fd\u6570\u7ed3\u675f\u65f6\u7531\u7cfb\u7edf\u81ea\u52a8\u91ca\u653e\u3002\u5b58\u653e\u5c40\u90e8\u53d8\u91cf\u3001\u51fd\u6570\u53c2\u6570<\/p>\n<p><strong>98. \u961f\u5217\u548c\u6808\u6709\u4ec0\u4e48\u533a\u522b\uff1a<\/strong><\/p>\n<p>\u7b54\uff1a\u961f\u5217\u548c\u6808\u662f\u4e24\u79cd\u4e0d\u540c\u7684\u6570\u636e\u5bb9\u5668\u3002\u4ece\u201d\u6570\u636e\u7ed3\u6784\u201d\u7684\u89d2\u5ea6\u770b\uff0c\u5b83\u4eec\u90fd\u662f\u7ebf\u6027\u7ed3\u6784\uff0c\u5373\u6570\u636e\u5143\u7d20\u4e4b\u95f4\u7684\u5173\u7cfb\u76f8\u540c\u3002<\/p>\n<p>\u961f\u5217\u662f\u4e00\u79cd\u5148\u8fdb\u5148\u51fa\u7684\u6570\u636e\u7ed3\u6784\uff0c\u5b83\u5728\u4e24\u7aef\u8fdb\u884c\u64cd\u4f5c\uff0c\u4e00\u7aef\u8fdb\u884c\u5165\u961f\u5217\u64cd\u4f5c\uff0c\u4e00\u7aef\u8fdb\u884c\u51fa\u5217\u961f\u64cd\u4f5c\u3002<\/p>\n<p>\u6808\u662f\u4e00\u79cd\u5148\u8fdb\u540e\u51fa\u7684\u6570\u636e\u7ed3\u6784\uff0c\u5b83\u53ea\u80fd\u5728\u6808\u9876\u8fdb\u884c\u64cd\u4f5c\uff0c\u5165\u6808\u548c\u51fa\u6808\u90fd\u5728\u6808\u9876\u64cd\u4f5c\u3002<\/p>\n<p><strong>99. HTTP\u534f\u8bae\u4e2d\uff0cPOST\u548cGET\u7684\u533a\u522b\u662f\u4ec0\u4e48\uff1f<\/strong><\/p>\n<p>\u7b54\uff1a<\/p>\n<p>1).GET \u65b9\u6cd5<\/p>\n<p>GET \u65b9\u6cd5\u63d0\u4ea4\u6570\u636e\u4e0d\u5b89\u5168\uff0c\u6570\u636e\u7f6e\u4e8e\u8bf7\u6c42\u884c\uff0c\u5ba2\u6237\u7aef\u5730\u5740\u680f\u53ef\u89c1;<\/p>\n<p>GET \u65b9\u6cd5\u63d0\u4ea4\u7684\u6570\u636e\u5927\u5c0f\u6709\u9650<\/p>\n<p>GET \u65b9\u6cd5\u4e0d\u53ef\u4ee5\u8bbe\u7f6e\u4e66\u7b7e<\/p>\n<p>2).POST \u65b9\u6cd5<\/p>\n<p>POST \u65b9\u6cd5\u63d0\u4ea4\u6570\u636e\u5b89\u5168\uff0c\u6570\u636e\u7f6e\u4e8e\u6d88\u606f\u4e3b\u4f53\u5185\uff0c\u5ba2\u6237\u7aef\u4e0d\u53ef\u89c1<\/p>\n<p>POST \u65b9\u6cd5\u63d0\u4ea4\u7684\u6570\u636e\u5927\u5c0f\u6ca1\u6709\u9650\u5236<\/p>\n<p>POST \u65b9\u6cd5\u53ef\u4ee5\u8bbe\u7f6e\u4e66\u7b7e<\/p>\n<p><strong>100.\u00a0 iOS\u7684\u7cfb\u7edf\u67b6\u6784<\/strong><\/p>\n<p>\u7b54\uff1a iOS\u7684\u7cfb\u7edf\u67b6\u6784\u5206\u4e3a\uff08 \u6838\u5fc3\u64cd\u4f5c\u7cfb\u7edf\u5c42 theCore OS layer \uff09\u3001<br \/>\n\uff08 \u6838\u5fc3\u670d\u52a1\u5c42theCore Services layer \uff09\u3001<br \/>\n\uff08 \u5a92\u4f53\u5c42 theMedia layer \uff09\u548c\uff08 Cocoa \u754c\u9762\u670d\u52a1\u5c42 the Cocoa Touch layer \uff09\u56db\u4e2a\u5c42\u6b21\u3002<\/p>\n<p><strong>101.\u00a0 \u63a7\u4ef6\u4e3b\u8981\u54cd\u5e943\u79cd\u4e8b\u4ef6<\/strong><\/p>\n<p>\u7b54\uff1a1). \u57fa\u4e8e\u89e6\u6478\u7684\u4e8b\u4ef6 ;\u00a0 2). \u57fa\u4e8e\u503c\u7684\u4e8b\u4ef6 ;\u00a0 3).\u57fa\u4e8e\u7f16\u8f91\u7684\u4e8b\u4ef6\u3002<\/p>\n<p><strong>102.\u00a0 xib\u6587\u4ef6\u7684\u6784\u6210\u5206\u4e3a\u54ea3\u4e2a\u56fe\u6807\uff1f\u90fd\u5177\u6709\u4ec0\u4e48\u529f\u80fd\u3002<\/strong><\/p>\n<p>\u7b54\uff1a File\u2019s Owner \u662f\u6240\u6709 nib \u6587\u4ef6\u4e2d\u7684\u6bcf\u4e2a\u56fe\u6807\uff0c\u5b83\u8868\u793a\u4ece\u78c1\u76d8\u52a0\u8f7d nib \u6587\u4ef6\u7684\u5bf9\u8c61\uff1b<\/p>\n<p>First Responder \u5c31\u662f\u7528\u6237\u5f53\u524d\u6b63\u5728\u4e0e\u4e4b\u4ea4\u4e92\u7684\u5bf9\u8c61\uff1b<\/p>\n<p>View \u663e\u793a\u7528\u6237\u754c\u9762\uff1b\u5b8c\u6210\u7528\u6237\u4ea4\u4e92\uff1b\u662f UIView \u7c7b\u6216\u5176\u5b50\u7c7b\u3002<\/p>\n<p><strong>103.\u00a0 \u7b80\u8ff0\u89c6\u56fe\u63a7\u4ef6\u5668\u7684\u751f\u547d\u5468\u671f\u3002<\/strong><\/p>\n<p>\u7b54\uff1a loadView \u5c3d\u7ba1\u4e0d\u76f4\u63a5\u8c03\u7528\u8be5\u65b9\u6cd5\uff0c\u5982\u591a\u624b\u52a8\u521b\u5efa\u81ea\u5df1\u7684\u89c6\u56fe\uff0c\u90a3\u4e48\u5e94\u8be5\u8986\u76d6\u8fd9\u4e2a\u65b9\u6cd5\u5e76\u5c06\u5b83\u4eec\u8d4b\u503c\u7ed9\u8bd5\u56fe\u63a7\u5236\u5668\u7684 view \u5c5e\u6027\u3002<\/p>\n<p>viewDidLoad \u53ea\u6709\u5728\u89c6\u56fe\u63a7\u5236\u5668\u5c06\u5176\u89c6\u56fe\u8f7d\u5165\u5230\u5185\u5b58\u4e4b\u540e\u624d\u8c03\u7528\u8be5\u65b9\u6cd5\uff0c\u8fd9\u662f\u6267\u884c\u4efb\u4f55\u5176\u4ed6\u521d\u59cb\u5316\u64cd\u4f5c\u7684\u5165\u53e3\u3002<\/p>\n<p>viewDidUnload \u5f53\u8bd5\u56fe\u63a7\u5236\u5668\u4ece\u5185\u5b58\u91ca\u653e\u81ea\u5df1\u7684\u65b9\u6cd5\u7684\u65f6\u5019\u8c03\u7528\uff0c\u7528\u4e8e\u6e05\u695a\u90a3\u4e9b\u53ef\u80fd\u5df2\u7ecf\u5728\u8bd5\u56fe\u63a7\u5236\u5668\u4e2d\u521b\u5efa\u7684\u5bf9\u8c61\u3002<\/p>\n<p>viewVillAppear \u5f53\u8bd5\u56fe\u5c06\u8981\u6dfb\u52a0\u5230\u7a97\u53e3\u4e2d\u5e76\u4e14\u8fd8\u4e0d\u53ef\u89c1\u7684\u65f6\u5019\u6216\u8005\u4e0a\u5c42\u89c6\u56fe\u79fb\u51fa\u56fe\u5c42\u540e\u672c\u89c6\u56fe\u53d8\u6210\u9876\u7ea7\u89c6\u56fe\u65f6\u8c03\u7528\u8be5\u65b9\u6cd5\uff0c\u7528\u4e8e\u6267\u884c\u8bf8\u5982\u6539\u53d8\u89c6\u56fe\u65b9\u5411\u7b49\u7684\u64cd\u4f5c\u3002\u5b9e\u73b0\u8be5\u65b9\u6cd5\u65f6\u786e\u4fdd\u8c03\u7528 [super viewWillAppear:<\/p>\n<p>viewDidAppear \u5f53\u89c6\u56fe\u6dfb\u52a0\u5230\u7a97\u53e3\u4e2d\u4ee5\u540e\u6216\u8005\u4e0a\u5c42\u89c6\u56fe\u79fb\u51fa\u56fe\u5c42\u540e\u672c\u89c6\u56fe\u53d8\u6210\u9876\u7ea7\u89c6\u56fe\u65f6\u8c03\u7528\uff0c\u7528\u4e8e\u653e\u7f6e\u90a3\u4e9b\u9700\u8981\u5728\u89c6\u56fe\u663e\u793a\u540e\u6267\u884c\u7684\u4ee3\u7801\u3002\u786e\u4fdd\u8c03\u7528 [super viewDidAppear\uff1a] \u3002<\/p>\n<p><strong>104.\u00a0 \u52a8\u753b\u6709\u57fa\u672c\u7c7b\u578b\u6709\u54ea\u51e0\u79cd\uff1b\u8868\u89c6\u56fe\u6709\u54ea\u51e0\u79cd\u57fa\u672c\u6837\u5f0f\u3002<\/strong><\/p>\n<p>\u7b54\uff1a\u52a8\u753b\u6709\u4e24\u79cd\u57fa\u672c\u7c7b\u578b\uff1a\u9690\u5f0f\u52a8\u753b\u548c\u663e\u5f0f\u52a8\u753b\u3002<\/p>\n<p><strong>105.\u00a0 \u5b9e\u73b0\u7b80\u5355\u7684\u8868\u683c\u663e\u793a\u9700\u8981\u8bbe\u7f6eUITableView\u7684\u4ec0\u4e48\u5c5e\u6027\u3001\u5b9e\u73b0\u4ec0\u4e48\u534f\u8bae\uff1f<\/strong><\/p>\n<p>\u7b54\uff1a\u5b9e\u73b0\u7b80\u5355\u7684\u8868\u683c\u663e\u793a\u9700\u8981\u8bbe\u7f6e UITableView \u7684 dataSource \u548c delegate \u5c5e\u6027\uff0c\u5b9e\u73b0UITableViewDataSource \u548c UITableViewDelegate \u534f\u8bae\u3002<\/p>\n<p><strong>106.\u00a0 Cocoa Touch\u63d0\u4f9b\u4e86\u54ea\u51e0\u79cdCore Animation\u8fc7\u6e21\u7c7b\u578b\uff1f<\/strong><\/p>\n<p>\u7b54\uff1a Cocoa Touch \u63d0\u4f9b\u4e86 4 \u79cd Core Animation \u8fc7\u6e21\u7c7b\u578b\uff0c\u5206\u522b\u4e3a\uff1a\u4ea4\u53c9\u6de1\u5316\u3001\u63a8\u6324\u3001\u663e\u793a\u548c\u8986\u76d6\u3002<\/p>\n<p><strong>107.\u00a0 UIView\u4e0eCLayer\u6709\u4ec0\u4e48\u533a\u522b\uff1f<\/strong><\/p>\n<p>\u7b54\uff1a<\/p>\n<p>1).UIView \u662f iOS \u7cfb\u7edf\u4e2d\u754c\u9762\u5143\u7d20\u7684\u57fa\u7840\uff0c\u6240\u6709\u7684\u754c\u9762\u5143\u7d20\u90fd\u662f\u7ee7\u627f\u81ea\u5b83\u3002\u5b83\u672c\u8eab\u5b8c\u5168\u662f\u7531 CoreAnimation \u6765\u5b9e\u73b0\u7684\u3002\u5b83\u771f\u6b63\u7684\u7ed8\u56fe\u90e8\u5206\uff0c\u662f\u7531\u4e00\u4e2a CALayer \u7c7b\u6765\u7ba1\u7406\u3002 UIView \u672c\u8eab\u66f4\u50cf\u662f\u4e00\u4e2a CALayer \u7684\u7ba1\u7406\u5668\uff0c\u8bbf\u95ee\u5b83\u7684\u8ddf\u7ed8\u56fe\u548c\u8ddf\u5750\u6807\u6709\u5173\u7684\u5c5e\u6027\u3002<\/p>\n<p>2).UIView \u6709\u4e2a\u91cd\u8981\u5c5e\u6027 layer \uff0c\u53ef\u4ee5\u8fd4\u56de\u5b83\u7684\u4e3b CALayer \u5b9e\u4f8b\u3002<\/p>\n<p>3).UIView \u7684 CALayer \u7c7b\u4f3c UIView \u7684\u5b50 View \u6811\u5f62\u7ed3\u6784\uff0c\u4e5f\u53ef\u4ee5\u5411\u5b83\u7684 layer \u4e0a\u6dfb\u52a0\u5b50layer \uff0c\u6765\u5b8c\u6210\u67d0\u4e9b\u7279\u6b8a\u7684\u8868\u793a\u3002\u5373 CALayer \u5c42\u662f\u53ef\u4ee5\u5d4c\u5957\u7684\u3002<\/p>\n<p>4).UIView \u7684 layer \u6811\u5f62\u5728\u7cfb\u7edf\u5185\u90e8\uff0c\u88ab\u7ef4\u62a4\u7740\u4e09\u4efd copy \u3002\u5206\u522b\u662f\u903b\u8f91\u6811\uff0c\u8fd9\u91cc\u662f\u4ee3\u7801\u53ef\u4ee5\u64cd\u7eb5\u7684\uff1b\u52a8\u753b\u6811\uff0c\u662f\u4e00\u4e2a\u4e2d\u95f4\u5c42\uff0c\u7cfb\u7edf\u5c31\u5728\u8fd9\u4e00\u5c42\u4e0a\u66f4\u6539\u5c5e\u6027\uff0c\u8fdb\u884c\u5404\u79cd\u6e32\u67d3\u64cd\u4f5c\uff1b\u663e\u793a\u6811\uff0c\u5176\u5185\u5bb9\u5c31\u662f\u5f53\u524d\u6b63\u88ab\u663e\u793a\u5728\u5c4f\u5e55\u4e0a\u5f97\u5185\u5bb9\u3002<\/p>\n<p>5).\u52a8\u753b\u7684\u8fd0\u4f5c\uff1a\u5bf9 UIView \u7684 subLayer \uff08\u975e\u4e3b Layer \uff09\u5c5e\u6027\u8fdb\u884c\u66f4\u6539\uff0c\u7cfb\u7edf\u5c06\u81ea\u52a8\u8fdb\u884c\u52a8\u753b\u751f\u6210\uff0c\u52a8\u753b\u6301\u7eed\u65f6\u95f4\u7684\u7f3a\u7701\u503c\u4f3c\u4e4e\u662f 0.5 \u79d2\u3002<\/p>\n<p>6).\u5750\u6807\u7cfb\u7edf\uff1a CALayer \u7684\u5750\u6807\u7cfb\u7edf\u6bd4 UIView \u591a\u4e86\u4e00\u4e2a anchorPoint \u5c5e\u6027\uff0c\u4f7f\u7528CGPoint \u7ed3\u6784\u8868\u793a\uff0c\u503c\u57df\u662f 0~1 \uff0c\u662f\u4e2a\u6bd4\u4f8b\u503c\u3002\u8fd9\u4e2a\u70b9\u662f\u5404\u79cd\u56fe\u5f62\u53d8\u6362\u7684\u5750\u6807\u539f\u70b9\uff0c\u540c\u65f6\u4f1a\u66f4\u6539 layer \u7684 position \u7684\u4f4d\u7f6e\uff0c\u5b83\u7684\u7f3a\u7701\u503c\u662f {0.5,0.5} \uff0c\u5373\u5728 layer \u7684\u4e2d\u592e\u3002<\/p>\n<p>7).\u6e32\u67d3\uff1a\u5f53\u66f4\u65b0\u5c42\uff0c\u6539\u53d8\u4e0d\u80fd\u7acb\u5373\u663e\u793a\u5728\u5c4f\u5e55\u4e0a\u3002\u5f53\u6240\u6709\u7684\u5c42\u90fd\u51c6\u5907\u597d\u65f6\uff0c\u53ef\u4ee5\u8c03\u7528setNeedsDisplay \u65b9\u6cd5\u6765\u91cd\u7ed8\u663e\u793a\u3002<\/p>\n<p>8).\u53d8\u6362\uff1a\u8981\u5728\u4e00\u4e2a\u5c42\u4e2d\u6dfb\u52a0\u4e00\u4e2a 3D \u6216\u4eff\u5c04\u53d8\u6362\uff0c\u53ef\u4ee5\u5206\u522b\u8bbe\u7f6e\u5c42\u7684 transform \u6216affineTransform 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Quatrz 2D\u7684\u7ed8\u56fe\u529f\u80fd\u7684\u4e09\u4e2a\u6838\u5fc3\u6982\u5ff5\u662f\u4ec0\u4e48\u5e76\u7b80\u8ff0\u5176\u4f5c\u7528\u3002<\/strong><\/p>\n<p>\u7b54\uff1a\u4e0a\u4e0b\u6587\uff1a\u4e3b\u8981\u7528\u4e8e\u63cf\u8ff0\u56fe\u5f62\u5199\u5165\u54ea\u91cc\uff1b<\/p>\n<p>\u8def\u5f84\uff1a\u662f\u5728\u56fe\u5c42\u4e0a\u7ed8\u5236\u7684\u5185\u5bb9\uff1b<\/p>\n<p>\u72b6\u6001\uff1a\u7528\u4e8e\u4fdd\u5b58\u914d\u7f6e\u53d8\u6362\u7684\u503c\u3001\u586b\u5145\u548c\u8f6e\u5ed3\uff0c alpha \u503c\u7b49\u3002<\/p>\n<p><strong>109.\u00a0 iPhone OS\u4e3b\u8981\u63d0\u4f9b\u4e86\u51e0\u79cd\u64ad\u653e\u97f3\u9891\u7684\u65b9\u6cd5\uff1f<\/strong><\/p>\n<p>\u7b54\uff1a SystemSound Services<\/p>\n<p>AVAudioPlayer \u7c7b<\/p>\n<p>Audio Queue Services<\/p>\n<p>OpenAL<\/p>\n<p><strong>110.\u00a0 \u4f7f\u7528AVAudioPlayer\u7c7b\u8c03\u7528\u54ea\u4e2a\u6846\u67b6\u3001\u4f7f\u7528\u6b65\u9aa4\uff1f<\/strong><\/p>\n<p>\u7b54\uff1a 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