{"id":508,"date":"2018-02-23T23:38:52","date_gmt":"2018-02-23T15:38:52","guid":{"rendered":"http:\/\/60.205.208.74\/2018\/02\/23\/swift-%e5%9f%ba%e6%9c%ac%e8%af%ad%e6%b3%95\/"},"modified":"2018-02-23T23:38:52","modified_gmt":"2018-02-23T15:38:52","slug":"swift-%e5%9f%ba%e6%9c%ac%e8%af%ad%e6%b3%95","status":"publish","type":"post","link":"https:\/\/www.puzi7.net\/?p=508","title":{"rendered":"Swift \u57fa\u672c\u8bed\u6cd5"},"content":{"rendered":"<span itemprop=\"description\"><div class=\"article-body\">\n<div class=\"article-intro\" id=\"content\">\n<h1>Swift \u57fa\u672c\u8bed\u6cd5<\/h1>\n<p>\n\u5728\u4e0a\u4e00\u7ae0\u8282\u4e2d\u6211\u4eec\u5df2\u7ecf\u8bb2\u5230\u5982\u4f55\u521b\u5efa Swift \u8bed\u8a00\u7684 &#8220;Hello, World!&#8221; \u7a0b\u5e8f\u3002\u73b0\u5728\u6211\u4eec\u6765\u590d\u4e60\u4e0b\u3002<\/p>\n<p>\n\u5982\u679c\u521b\u5efa\u7684\u662f OS X playground \u9700\u8981\u5f15\u5165 Cocoa \uff1a<\/p>\n<pre>\nimport Cocoa\n\n\/* \u6211\u7684\u7b2c\u4e00\u4e2a Swift \u7a0b\u5e8f *\/\nvar myString = \"Hello, World!\"\n\nprint(myString)\n<\/pre>\n<p>\u5982\u679c\u6211\u4eec\u60f3\u521b\u5efa iOS playground \u5219\u9700\u8981\u5f15\u5165 UIKit :\n<\/p>\n<pre>\nimport UIKit\nvar myString = \"Hello, World!\"\nprint(myString)\n<\/pre>\n<p>\u6267\u884c\u4ee5\u4e0a\u7a0b\u5e8f\uff0c\u8f93\u51fa\u7ed3\u679c\u4e3a\uff1a<\/p>\n<pre>\nHello, World! \n<\/pre>\n<p>\u4ee5\u4e0a\u4ee3\u7801\u5373\u4e3a Swift \u7a0b\u5e8f\u7684\u57fa\u672c\u7ed3\u6784\uff0c\u63a5\u4e0b\u6765\u6211\u4eec\u6765\u8be6\u7ec6\u8bf4\u660e\u7ed3\u6784\u7684\u7ec4\u6210\u90e8\u5206\u3002<\/p>\n<hr>\n<h2>Swift \u5f15\u5165<\/h2>\n<p>\n\u6211\u4eec\u53ef\u4ee5\u4f7f\u7528 <b>import<\/b> \u8bed\u53e5\u6765\u5f15\u5165\u4efb\u4f55\u7684 Objective-C \u6846\u67b6\uff08\u6216 C \u5e93\uff09\u5230 Swift \u7a0b\u5e8f\u4e2d\u3002\u4f8b\u5982 <b>import cocoa<\/b> \u8bed\u53e5\u5bfc\u5165\u4e86\u4f7f\u7528\u4e86 Cocoa \u5e93\u548cAPI\uff0c\u6211\u4eec\u53ef\u4ee5\u5728 Swift \u7a0b\u5e8f\u4e2d\u4f7f\u7528\u4ed6\u4eec\u3002<\/p>\n<\/p>\n<p>Cocoa \u672c\u8eab\u7531 Objective-C \u8bed\u8a00\u5199\u6210\uff0cObjective-C \u53c8\u662f C \u8bed\u8a00\u7684\u4e25\u683c\u8d85\u96c6\uff0c\u6240\u4ee5\u5728 Swift \u5e94\u7528\u4e2d\u6211\u4eec\u53ef\u4ee5\u5f88\u7b80\u5355\u7684\u6df7\u5165 C \u8bed\u8a00\u4ee3\u7801\uff0c\u751a\u81f3\u662f C++ \u4ee3\u7801\u3002<\/p>\n<hr>\n<h2>Swift \u6807\u8bb0<\/h2>\n<p>\nSwift \u7a0b\u5e8f\u7531\u591a\u79cd\u6807\u8bb0\u7ec4\u6210\uff0c\u6807\u8bb0\u53ef\u4ee5\u662f\u5355\u8bcd\uff0c\u6807\u8bc6\u7b26\uff0c\u5e38\u91cf\uff0c\u5b57\u7b26\u4e32\u6216\u7b26\u53f7\u3002\u4f8b\u5982\u4ee5\u4e0b Swift \u7a0b\u5e8f\u7531\u4e09\u79cd\u6807\u8bb0\u7ec4\u6210\uff1a<\/p>\n<pre>\nprint(\"test!\")\n<\/pre>\n<p>\u4ee5\u4e0a\u8bed\u53e5\u7531 3 \u4e2a\u7b26\u53f7\u7ec4\u6210\uff1a\u5355\u8bcd( <strong>print<\/strong> )\u3001\u7b26\u53f7( <strong>(<\/strong> )\u3001\u5b57\u7b26\u4e32( <strong>&#8220;test&#8221;<\/strong> )\u3002<\/p>\n<pre>\nprint\n(\n   \"test!\"\n)\n<\/pre>\n<hr>\n<h2>\u6ce8\u91ca<\/h2>\n<p>\nSwift\u7684\u6ce8\u91ca\u4e0eC\u8bed\u8a00\u6781\u5176\u76f8\u4f3c\uff0c\u5355\u884c\u6ce8\u91ca\u4ee5\u4e24\u4e2a\u53cd\u659c\u7ebf\u5f00\u5934\uff1a\n<\/p>\n<\/p>\n<pre>\n\/\/\u8fd9\u662f\u4e00\u884c\u6ce8\u91ca\n<\/pre>\n<p>\n\u591a\u884c\u6ce8\u91ca\u4ee5\/*\u5f00\u59cb\uff0c\u4ee5*\/\u7ed3\u675f:\n<\/p>\n<pre>\n\/* \u8fd9\u4e5f\u662f\u4e00\u6761\u6ce8\u91ca\uff0c\n\u4f46\u8de8\u8d8a\u591a\u884c *\/\n<\/pre>\n<p>\n\u4e0e C \u8bed\u8a00\u7684\u591a\u884c\u6ce8\u91ca\u6709\u6240\u4e0d\u540c\u7684\u662f\uff0cSwift \u7684\u591a\u884c\u6ce8\u91ca\u53ef\u4ee5\u5d4c\u5957\u5728\u5176\u4ed6\u591a\u884c\u6ce8\u91ca\u5185\u90e8\u3002\u5199\u6cd5\u662f\u5728\u4e00\u4e2a\u591a\u884c\u6ce8\u91ca\u5757\u5185\u63d2\u5165\u53e6\u4e00\u4e2a\u591a\u884c\u6ce8\u91ca\u3002\u7b2c\u4e8c\u4e2a\u6ce8\u91ca\u5757\u5c01\u95ed\u65f6\uff0c\u540e\u9762\u4ecd\u7136\u63a5\u7740\u7b2c\u4e00\u4e2a\u6ce8\u91ca\u5757\uff1a\n<\/p>\n<pre>\n\/* \u8fd9\u662f\u7b2c\u4e00\u4e2a\u591a\u884c\u6ce8\u91ca\u7684\u5f00\u5934\n\n\/* \u8fd9\u662f\u5d4c\u5957\u7684\u7b2c\u4e8c\u4e2a\u591a\u884c\u6ce8\u91ca *\/\n\n\u8fd9\u662f\u7b2c\u4e00\u4e2a\u591a\u884c\u6ce8\u91ca\u7684\u7ed3\u5c3e *\/\n<\/pre>\n<p>\n\u591a\u884c\u6ce8\u91ca\u7684\u5d4c\u5957\u662f\u4f60\u53ef\u4ee5\u66f4\u5feb\u6377\u65b9\u4fbf\u7684\u6ce8\u91ca\u4ee3\u7801\u5757\uff0c\u5373\u4f7f\u4ee3\u7801\u5757\u4e2d\u5df2\u7ecf\u6709\u4e86\u6ce8\u91ca\u3002<\/p>\n<hr>\n<h2>\u5206\u53f7<\/h2>\n<p>\u4e0e\u5176\u5b83\u8bed\u8a00\u4e0d\u540c\u7684\u662f\uff0cSwift\u4e0d\u8981\u6c42\u5728\u6bcf\u884c\u8bed\u53e5\u7684\u7ed3\u5c3e\u4f7f\u7528\u5206\u53f7(;)\uff0c\u4f46\u5f53\u4f60\u5728\u540c\u4e00\u884c\u4e66\u5199\u591a\u6761\u8bed\u53e5\u65f6\uff0c\u5fc5\u987b\u7528\u5206\u53f7\u9694\u5f00\uff1a<\/p>\n<pre>\nimport Cocoa\n\/* \u6211\u7684\u7b2c\u4e00\u4e2a Swift \u7a0b\u5e8f *\/\nvar myString = \"Hello, World!\"; print(myString)\n<\/pre>\n<hr>\n<h2>\u6807\u8bc6\u7b26<\/h2>\n<p>\u6807\u8bc6\u7b26\u5c31\u662f\u7ed9\u53d8\u91cf\u3001\u5e38\u91cf\u3001\u65b9\u6cd5\u3001\u51fd\u6570\u3001\u679a\u4e3e\u3001\u7ed3\u6784\u4f53\u3001\u7c7b\u3001\u534f\u8bae\u7b49\u6307\u5b9a\u7684\u540d\u5b57\u3002\u6784\u6210\u6807\u8bc6\u7b26\u7684\u5b57\u6bcd\u5747\u6709\u4e00\u5b9a\u7684\u89c4\u8303\uff0cSwift\u8bed\u8a00\u4e2d\u6807\u8bc6\u7b26\u7684\u547d\u540d\u89c4\u5219\u5982\u4e0b\uff1a<\/p>\n<ul>\n<li>\n<p><span>\u533a\u5206\u5927\u5c0f\u5199\uff0c<\/span><span><span lang=\"EN-US\">Myname<\/span><\/span><span>\u4e0e<\/span><span><span lang=\"EN-US\">myname<\/span><\/span><span>\u662f\u4e24\u4e2a\u4e0d\u540c\u7684\u6807\u8bc6\u7b26\uff1b<\/span><\/p>\n<\/li>\n<li>\n<p><span>\u6807\u8bc6\u7b26\u9996\u5b57\u7b26\u53ef\u4ee5\u4ee5\u4e0b\u5212\u7ebf\uff08<\/span><span lang=\"EN-US\">_<\/span><span>\uff09\u6216\u8005\u5b57\u6bcd\u5f00\u59cb\uff0c\u4f46\u4e0d\u80fd\u662f\u6570\u5b57\uff1b<\/span><\/p>\n<\/li>\n<li>\n<p><span>\u6807\u8bc6\u7b26\u4e2d\u5176\u4ed6\u5b57\u7b26\u53ef\u4ee5\u662f\u4e0b\u5212\u7ebf\uff08<\/span><span lang=\"EN-US\">_<\/span><span>\uff09\u3001\u5b57\u6bcd\u6216\u6570\u5b57\u3002<\/span><\/p>\n<\/li>\n<\/ul>\n<p>\u4f8b\u5982\uff1a userName\u3001User_Name\u3001_sys_val\u3001\u8eab\u9ad8\u7b49\u4e3a\u5408\u6cd5\u7684\u6807\u8bc6\u7b26\uff0c\u800c2mail\u3001room#\u548cclass\u4e3a\u975e\u6cd5\u7684\u6807\u8bc6\u7b26\u3002<\/p>\n<p><b>\u6ce8\u610f:<\/b>Swift\u4e2d\u7684\u5b57\u6bcd\u91c7\u7528\u7684\u662fUnicode\u7f16\u7801[1]\u3002Unicode\u53eb\u505a\u7edf\u4e00\u7f16\u7801\u5236\uff0c\u5b83\u5305\u542b\u4e86\u4e9a\u6d32\u6587\u5b57\u7f16\u7801\uff0c\u5982\u4e2d\u6587\u3001\u65e5\u6587\u3001\u97e9\u6587\u7b49\u5b57\u7b26\uff0c\u751a\u81f3\u662f\u6211\u4eec\u5728\u804a\u5929\u5de5\u5177\u4e2d\u4f7f\u7528\u7684\u8868\u60c5\u7b26\u53f7<\/p>\n<p>\u5982\u679c\u4e00\u5b9a\u8981\u4f7f\u7528\u5173\u952e\u5b57\u4f5c\u4e3a\u6807\u8bc6\u7b26\uff0c\u53ef\u4ee5\u5728\u5173\u952e\u5b57\u524d\u540e\u6dfb\u52a0\u91cd\u97f3\u7b26\u53f7\uff08`\uff09\uff0c\u4f8b\u5982\uff1a<\/p>\n<pre>let `class` = \"Runoob\"<\/pre>\n<hr>\n<h2>\u5173\u952e\u5b57<\/h2>\n<p>\u5173\u952e\u5b57\u662f\u7c7b\u4f3c\u4e8e\u6807\u8bc6\u7b26\u7684\u4fdd\u7559\u5b57\u7b26\u5e8f\u5217\uff0c\u9664\u975e\u7528\u91cd\u97f3\u7b26\u53f7\uff08`\uff09\u5c06\u5176\u62ec\u8d77\u6765\uff0c\u5426\u5219\u4e0d\u80fd\u7528\u4f5c\u6807\u8bc6\u7b26\u3002\u5173\u952e\u5b57\u662f\u5bf9\u7f16\u8bd1\u5668\u5177\u6709\u7279\u6b8a\u610f\u4e49\u7684\u9884\u5b9a\u4e49\u4fdd\u7559\u6807\u8bc6\u7b26\u3002\u5e38\u89c1\u7684\u5173\u952e\u5b57\u6709\u4ee5\u4e0b4\u79cd\u3002<\/p>\n<h3>\u4e0e\u58f0\u660e\u6709\u5173\u7684\u5173\u952e\u5b57<\/h3>\n<table class=\"reference\">\n<tbody>\n<tr>\n<td>class<\/td>\n<td>deinit<\/td>\n<td>enum<\/td>\n<td>extension<\/td>\n<\/tr>\n<tr>\n<td>func<\/td>\n<td>import<\/td>\n<td>init<\/td>\n<td>internal<\/td>\n<\/tr>\n<tr>\n<td>let<\/td>\n<td>operator<\/td>\n<td>private<\/td>\n<td>protocol<\/td>\n<\/tr>\n<tr>\n<td>public<\/td>\n<td>static<\/td>\n<td>struct<\/td>\n<td>subscript<\/td>\n<\/tr>\n<tr>\n<td>typealias<\/td>\n<td>var<\/td>\n<td><\/td>\n<td><\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<h3>\u4e0e\u8bed\u53e5\u6709\u5173\u7684\u5173\u952e\u5b57<\/h3>\n<table class=\"reference\">\n<tbody>\n<tr>\n<td>break<\/td>\n<td>case<\/td>\n<td>continue<\/td>\n<td>default<\/td>\n<\/tr>\n<tr>\n<td>do<\/td>\n<td>else<\/td>\n<td>fallthrough<\/td>\n<td>for<\/td>\n<\/tr>\n<tr>\n<td>if<\/td>\n<td>in<\/td>\n<td>return<\/td>\n<td>switch<\/td>\n<\/tr>\n<tr>\n<td>where<\/td>\n<td>while<\/td>\n<td><\/td>\n<td><\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<h3>\u8868\u8fbe\u5f0f\u548c\u7c7b\u578b\u5173\u952e\u5b57<\/h3>\n<table class=\"reference\">\n<tbody>\n<tr>\n<td>as<\/td>\n<td>dynamicType<\/td>\n<td>false<\/td>\n<td>is<\/td>\n<\/tr>\n<tr>\n<td>nil<\/td>\n<td>self<\/td>\n<td>Self<\/td>\n<td>super<\/td>\n<\/tr>\n<tr>\n<td>true<\/td>\n<td>_COLUMN_<\/td>\n<td>_FILE_<\/td>\n<td>_FUNCTION_<\/td>\n<\/tr>\n<tr>\n<td>_LINE_<\/td>\n<td><\/td>\n<td><\/td>\n<td><\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<h3>\u5728\u7279\u5b9a\u4e0a\u4e0b\u6587\u4e2d\u4f7f\u7528\u7684\u5173\u952e\u5b57<\/h3>\n<table class=\"reference\">\n<tbody>\n<tr>\n<td>associativity<\/td>\n<td>convenience<\/td>\n<td>dynamic<\/td>\n<td>didSet<\/td>\n<\/tr>\n<tr>\n<td>final<\/td>\n<td>get<\/td>\n<td>infix<\/td>\n<td>inout<\/td>\n<\/tr>\n<tr>\n<td>lazy<\/td>\n<td>left<\/td>\n<td>mutating<\/td>\n<td>none<\/td>\n<\/tr>\n<tr>\n<td>nonmutating<\/td>\n<td>optional<\/td>\n<td>override<\/td>\n<td>postfix<\/td>\n<\/tr>\n<tr>\n<td>precedence<\/td>\n<td>prefix<\/td>\n<td>Protocol<\/td>\n<td>required<\/td>\n<\/tr>\n<tr>\n<td>right<\/td>\n<td>set<\/td>\n<td>Type<\/td>\n<td>unowned<\/td>\n<\/tr>\n<tr>\n<td>weak<\/td>\n<td>willSet<\/td>\n<td><\/td>\n<td><\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<hr>\n<h2>Swift \u7a7a\u683c<\/h2>\n<p>Swift\u8bed\u8a00\u5e76\u4e0d\u662f\u50cfC\/C++\uff0cJava\u90a3\u6837\u5b8c\u5168\u5ffd\u89c6\u7a7a\u683c\uff0cSwift\u5bf9\u7a7a\u683c\u7684\u4f7f\u7528\u6709\u4e00\u5b9a\u7684\u8981\u6c42\uff0c\u4f46\u662f\u53c8\u4e0d\u50cfPython\u5bf9\u7f29\u8fdb\u7684\u8981\u6c42\u90a3\u4e48\u4e25\u683c\u3002\n<\/p>\n<p>\n\u5728Swift\u4e2d\uff0c\u8fd0\u7b97\u7b26\u4e0d\u80fd\u76f4\u63a5\u8ddf\u5728\u53d8\u91cf\u6216\u5e38\u91cf\u7684\u540e\u9762\u3002\u4f8b\u5982\u4e0b\u9762\u7684\u4ee3\u7801\u4f1a\u62a5\u9519\uff1a<\/p>\n<pre>\nlet a= 1 + 2\n<\/pre>\n<p>\u9519\u8bef\u4fe1\u606f\u662f\uff1a<\/p>\n<pre>error: prefix\/postfix '=' is reserved<\/pre>\n<p>\u610f\u601d\u5927\u6982\u662f\u7b49\u53f7\u76f4\u63a5\u8ddf\u5728\u524d\u9762\u6216\u540e\u9762\u8fd9\u79cd\u7528\u6cd5\u662f\u4fdd\u7559\u7684\u3002<\/p>\n<p>\u4e0b\u9762\u7684\u4ee3\u7801\u8fd8\u662f\u4f1a\u62a5\u9519\uff08\u7ee7\u7eed\u6ce8\u610f\u7a7a\u683c\uff09\uff1a<\/p>\n<pre>\nlet a = 1+ 2\n<\/pre>\n<p>\u9519\u8bef\u4fe1\u606f\u662f\uff1a<\/p>\n<pre>error: consecutive statements on a line must be separated by ';'<\/pre>\n<p>\u8fd9\u662f\u56e0\u4e3aSwift\u8ba4\u4e3a\u52301+\u8fd9\u4e2a\u8bed\u53e5\u5c31\u7ed3\u675f\u4e86\uff0c2\u5c31\u662f\u4e0b\u4e00\u4e2a\u8bed\u53e5\u4e86\u3002\n<\/p>\n<p>\n\u53ea\u6709\u8fd9\u6837\u5199\u624d\u4e0d\u4f1a\u62a5\u9519\uff1a<\/p>\n<pre>\nlet a = 1 + 2;  \/\/ \u7f16\u7801\u89c4\u8303\u63a8\u8350\u4f7f\u7528\u8fd9\u79cd\u5199\u6cd5\nlet b = 3+4 \/\/ \u8fd9\u6837\u4e5f\u662fOK\u7684\n<\/pre>\n<hr>\n<h2>Swift \u5b57\u9762\u91cf<\/h2>\n<p>\u6240\u8c13\u5b57\u9762\u91cf\uff0c\u5c31\u662f\u6307\u50cf\u7279\u5b9a\u7684\u6570\u5b57\uff0c\u5b57\u7b26\u4e32\u6216\u8005\u662f\u5e03\u5c14\u503c\u8fd9\u6837\uff0c\u80fd\u591f\u76f4\u63a5\u4e86\u5f53\u5730\u6307\u51fa\u81ea\u5df1\u7684\u7c7b\u578b\u5e76\u4e3a\u53d8\u91cf\u8fdb\u884c\u8d4b\u503c\u7684\u503c\u3002\u6bd4\u5982\u5728\u4e0b\u9762\uff1a<\/p>\n<pre>\n42                 \/\/ \u6574\u578b\u5b57\u9762\u91cf\n3.14159            \/\/ \u6d6e\u70b9\u578b\u5b57\u9762\u91cf\n\"Hello, world!\"    \/\/ \u5b57\u7b26\u4e32\u578b\u5b57\u9762\u91cf\ntrue               \/\/ \u5e03\u5c14\u578b\u5b57\u9762\u91cf\n<\/pre>\n<hr>\n<h2>\u6253\u5370\u8f93\u51fa<\/h2>\n<p>Swift \u4f7f\u7528 print \u51fd\u6570\u6253\u5370\u8f93\u51fa:<\/p>\n<pre>print(\"Runoob\") \/\/ \u8f93\u51fa Runoob<\/pre>\n<p>print \u51fd\u6570\u662f\u4e00\u4e2a\u5168\u5c40\u51fd\u6570,\u5b8c\u6574\u7684\u51fd\u6570\u7b7e\u540d\u4e3a:<\/p>\n<pre>\npublic func print(items: Any..., separator: String = default, terminator: String = default)\n<\/pre>\n<p>\u5982\u679c\u6211\u4eec\u60f3\u8ba9\u5176\u4e0d\u6362\u884c\u8f93\u51fa,\u53ea\u9700\u8981\u5c06\u6700\u540e\u4e00\u4e2a\u53c2\u6570\u8d4b\u503c\u4e3a\u7a7a\u5b57\u7b26\u4e32\u5373\u53ef:<\/p>\n<pre>\nfor x in 0...10{\n    print(\"\\(x) \", terminator: \"\")\n}\nprint()\n<\/pre>\n<p>\u8f93\u51fa\u7ed3\u679c\u4e3a\uff1a<\/p>\n<pre>0 1 2 3 4 5 6 7 8 9 10 <\/pre>\n<p>\u5982\u679c\u4f60\u9700\u8981\u63a5\u6536\u7528\u6237\u7684\u8f93\u5165\u53ef\u4ee5\u4f7f\u7528 <span class=\"marked\">readLine()<\/span>:<\/p>\n<pre>let theInput = readLine()<\/pre>\n<\/p><\/div>\n<\/p><\/div>\n<span>","protected":false},"excerpt":{"rendered":"<p class=\"excerpt\"><span itemprop=\"description\">Swift \u57fa\u672c\u8bed\u6cd5 \u5728\u4e0a\u4e00\u7ae0\u8282\u4e2d\u6211\u4eec\u5df2\u7ecf\u8bb2\u5230\u5982\u4f55\u521b\u5efa Swift \u8bed\u8a00\u7684 &#8220;&hellip;<\/span><\/p>\n<p class=\"more-link-p btn-align-right\"><a class=\"green zoom-btn\" href=\"https:\/\/www.puzi7.net\/?p=508\">Read More<\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[26,28],"tags":[74,119],"class_list":["post-508","post","type-post","status-publish","format-standard","hentry","category-mobile","category-swift","tag-ios","tag-swift","zoom-theme-has-thumb"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.3 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Swift \u57fa\u672c\u8bed\u6cd5 - \u8c31\u5b50\u68cb - Puzi7<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.puzi7.net\/?p=508\" \/>\n<meta property=\"og:locale\" content=\"zh_CN\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Swift \u57fa\u672c\u8bed\u6cd5 - \u8c31\u5b50\u68cb - Puzi7\" 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