{"id":6268,"date":"2024-07-10T13:48:18","date_gmt":"2024-07-10T05:48:18","guid":{"rendered":"https:\/\/t.n-years.com\/?p=6268"},"modified":"2024-07-10T13:48:18","modified_gmt":"2024-07-10T05:48:18","slug":"objective-c-%e5%92%8c-swift-%e4%b8%ad%e7%9a%84-arc-%e5%af%b9%e6%af%94","status":"publish","type":"post","link":"https:\/\/t.n-years.com\/?p=6268","title":{"rendered":"Objective-C \u548c Swift \u4e2d\u7684 ARC \u5bf9\u6bd4"},"content":{"rendered":"\n<p class=\"wp-block-paragraph\">\u975e\u539f\u521b\uff0cGemini \u95ee\u7b54\u751f\u6210<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Objective-C \u548c Swift \u90fd\u4f7f\u7528\u81ea\u52a8\u5f15\u7528\u8ba1\u6570 (ARC) \u6765\u7ba1\u7406\u5404\u81ea\u8bed\u8a00\u4e2d\u7684\u5185\u5b58\u3002\u867d\u7136 ARC \u7684\u6838\u5fc3\u6982\u5ff5\u4fdd\u6301\u4e0d\u53d8\uff0c\u4f46\u4e24\u79cd\u8bed\u8a00\u7684\u5b9e\u73b0\u4e4b\u95f4\u5b58\u5728\u4e00\u4e9b\u7ec6\u5fae\u5dee\u5f02\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Objective-C ARC<\/strong><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Objective-C \u4e2d\u7684 ARC \u5728 2.0 \u7248\u672c\u4e2d\u5f15\u5165\uff0c\u5e76\u6210\u4e3a iOS 5 \u4e2d\u9ed8\u8ba4\u7684\u5185\u5b58\u7ba1\u7406\u673a\u5236\u3002\u5b83\u53d6\u4ee3\u4e86\u65e9\u671f\u7248\u672c Objective-C \u4e2d\u666e\u904d\u5b58\u5728\u7684 retain\u3001release \u548c autorelease \u7b49\u624b\u52a8\u5185\u5b58\u7ba1\u7406\u6280\u672f\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Objective-C ARC \u901a\u8fc7\u8ddf\u8e2a\u5bf9\u5bf9\u8c61\u7684\u5f15\u7528\u6570\u91cf\u6765\u5de5\u4f5c\u3002\u5f53\u5f15\u7528\u8ba1\u6570\u964d\u4e3a\u96f6\u65f6\uff0c\u5bf9\u8c61\u88ab\u8ba4\u4e3a\u4e0d\u518d\u9700\u8981\uff0c\u5e76\u81ea\u52a8\u91ca\u653e\u5176\u5185\u5b58\u3002\u6b64\u8fc7\u7a0b\u5728\u540e\u53f0\u53d1\u751f\uff0c\u65e0\u9700\u7a0b\u5e8f\u5458\u663e\u5f0f\u5e72\u9884\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Swift ARC<\/strong><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Swift \u4ece\u4e00\u5f00\u59cb\u5c31\u91c7\u7528\u4e86 ARC\uff0c\u4f7f\u5176\u6210\u4e3a\u8be5\u8bed\u8a00\u4e2d\u552f\u4e00\u53ef\u7528\u7684\u5185\u5b58\u7ba1\u7406\u673a\u5236\u3002Swift \u7684 ARC \u5b9e\u73b0\u5efa\u7acb\u5728 Objective-C ARC \u7684\u57fa\u7840\u4e4b\u4e0a\uff0c\u4f46\u8fdb\u884c\u4e86\u4e00\u4e9b\u6539\u8fdb\u548c\u589e\u5f3a\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u4e00\u4e2a\u5173\u952e\u7684\u533a\u522b\u5728\u4e8e\uff0cSwift ARC \u66f4\u6df1\u5165\u5730\u96c6\u6210\u5230\u8bed\u8a00\u8bed\u6cd5\u4e2d\u3002\u4f8b\u5982\uff0c\u5728\u58f0\u660e\u53d8\u91cf\u6216\u5c5e\u6027\u65f6\uff0c\u60a8\u65e0\u9700\u663e\u5f0f\u6307\u5b9a __strong \u6216 __weak \u7b49\u5185\u5b58\u7ba1\u7406\u6ce8\u91ca\u3002Swift \u7684 ARC \u4f1a\u6839\u636e\u4e0a\u4e0b\u6587\u63a8\u65ad\u9002\u5f53\u7684\u5185\u5b58\u7ba1\u7406\u884c\u4e3a\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u53e6\u4e00\u4e2a\u533a\u522b\u5728\u4e8e\u5904\u7406\u5faa\u73af\u5f15\u7528\u3002\u5faa\u73af\u5f15\u7528\u662f\u6307\u4e24\u4e2a\u6216\u591a\u4e2a\u5bf9\u8c61\u76f8\u4e92\u6301\u6709\u5f15\u7528\uff0c\u5373\u4f7f\u5b83\u4eec\u4e0d\u518d\u9700\u8981\uff0c\u4e5f\u65e0\u6cd5\u91ca\u653e\u5b83\u4eec\u3002Objective-C ARC \u5bb9\u6613\u53d7\u5230\u5faa\u73af\u5f15\u7528\u7684\u5f71\u54cd\uff0c\u5728\u67d0\u4e9b\u60c5\u51b5\u4e0b\u4f1a\u5bfc\u81f4\u5185\u5b58\u6cc4\u6f0f\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Swift ARC \u901a\u8fc7\u4f7f\u7528\u79f0\u4e3a\u201c\u5f31\u5f15\u7528\u201d\u7684\u6280\u672f\u6765\u89e3\u51b3\u5faa\u73af\u5f15\u7528\u95ee\u9898\u3002\u5f53\u5c06\u5c5e\u6027\u6216\u53d8\u91cf\u58f0\u660e\u4e3a weak \u65f6\uff0c\u5b83\u4f1a\u4fdd\u6301\u5bf9\u5bf9\u8c61\u7684\u5f15\u7528\uff0c\u4f46\u5982\u679c\u5bf9\u8c61\u7684\u5f15\u7528\u8ba1\u6570\u964d\u4e3a\u96f6\uff0c\u5219\u4e0d\u4f1a\u963b\u6b62\u5bf9\u8c61\u88ab\u91ca\u653e\u3002\u8fd9\u6709\u52a9\u4e8e\u6253\u7834\u5faa\u73af\u5f15\u7528\u94fe\u5e76\u9632\u6b62\u5185\u5b58\u6cc4\u6f0f\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>\u603b\u4f53\u6bd4\u8f83<\/strong><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Objective-C ARC \u548c Swift ARC \u90fd\u80fd\u6709\u6548\u5730\u7ba1\u7406\u5185\u5b58\u5206\u914d\u548c\u91ca\u653e\uff0c\u51cf\u8f7b\u4e86\u7a0b\u5e8f\u5458\u624b\u52a8\u5904\u7406\u5185\u5b58\u7684\u8d1f\u62c5\u3002\u4f46\u662f\uff0cSwift \u7684 ARC \u5b9e\u73b0\u88ab\u8ba4\u4e3a\u66f4\u73b0\u4ee3\u3001\u66f4\u96c6\u6210\uff0c\u5e76\u4e14\u7531\u4e8e\u5faa\u73af\u5f15\u7528\u800c\u4e0d\u592a\u5bb9\u6613\u53d1\u751f\u5185\u5b58\u6cc4\u6f0f\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u4ee5\u4e0b\u8868\u683c\u603b\u7ed3\u4e86\u5173\u952e\u533a\u522b\uff1a<\/p>\n\n\n\n<figure class=\"wp-block-table\"><table><tbody><tr><th>\u7279\u6027<\/th><th>Objective-C ARC<\/th><th>Swift ARC<\/th><\/tr><tr><td>\u5f15\u5165<\/td><td>2.0 \u7248\u672c\uff082011 \u5e74\uff09<\/td><td>\u4ece\u4e00\u5f00\u59cb\uff082014 \u5e74\uff09<\/td><\/tr><tr><td>\u8bed\u8a00\u96c6\u6210<\/td><td>\u8f83\u5c11\u96c6\u6210<\/td><td>\u66f4\u96c6\u6210<\/td><\/tr><tr><td>\u5faa\u73af\u5f15\u7528\u5904\u7406<\/td><td>\u5bb9\u6613\u53d1\u751f\u5185\u5b58\u6cc4\u6f0f<\/td><td>\u4e0d\u592a\u5bb9\u6613\u53d1\u751f\u5185\u5b58\u6cc4\u6f0f<\/td><\/tr><tr><td>\u603b\u4f53<\/td><td>\u6210\u719f\u4f46\u4e0d\u591f\u7cbe\u7ec6<\/td><td>\u73b0\u4ee3\u3001\u96c6\u6210\u4e14\u4e0d\u6613\u51fa\u9519<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">\u603b\u800c\u8a00\u4e4b\uff0c\u867d\u7136 Objective-C ARC \u548c Swift ARC \u90fd\u63d0\u4f9b\u4e86\u9ad8\u6548\u7684\u5185\u5b58\u7ba1\u7406\uff0c\u4f46 Swift \u7684 ARC \u5b9e\u73b0\u5177\u6709\u591a\u9879\u4f18\u52bf\uff0c\u4f7f\u5176\u6210\u4e3a\u73b0\u4ee3 iOS \u5f00\u53d1\u7684\u9996\u9009\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u975e\u539f\u521b\uff0cGemini \u95ee\u7b54\u751f\u6210 Objective-C \u548c Swift \u90fd\u4f7f\u7528\u81ea\u52a8\u5f15\u7528\u8ba1\u6570 (ARC) \u6765\u7ba1\u7406&#8230; <\/p>\n<div class=\"read-more navbutton\"><a href=\"https:\/\/t.n-years.com\/?p=6268\">\u9605\u8bfb\u66f4\u591a<i class=\"fa fa-angle-double-right\"><\/i><\/a><\/div>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[5],"tags":[66,67,112],"class_list":["post-6268","post","type-post","status-publish","format-standard","hentry","category-5","tag-ios","tag-swift","tag-112"],"_links":{"self":[{"href":"https:\/\/t.n-years.com\/index.php?rest_route=\/wp\/v2\/posts\/6268","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/t.n-years.com\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/t.n-years.com\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/t.n-years.com\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/t.n-years.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=6268"}],"version-history":[{"count":1,"href":"https:\/\/t.n-years.com\/index.php?rest_route=\/wp\/v2\/posts\/6268\/revisions"}],"predecessor-version":[{"id":6269,"href":"https:\/\/t.n-years.com\/index.php?rest_route=\/wp\/v2\/posts\/6268\/revisions\/6269"}],"wp:attachment":[{"href":"https:\/\/t.n-years.com\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=6268"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/t.n-years.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=6268"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/t.n-years.com\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=6268"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}