{"rsdb":{"rid":"239462","subhead":"","postdate":"0","aid":"165042","fid":"97","uid":"1","topic":"1","content":"<div id=\"cnblogs_post_body\">\n <h3>\u4ec0\u4e48\u662f\u4eab\u5143\u6a21\u5f0f\uff1f<\/h3> \n <p><a><img src=\"https:\/\/camo.githubusercontent.com\/dc6a3e0e057f6ca4158c5fae7d0d4d12b2692986\/687474703a2f2f6f77767365747571752e626b742e636c6f7564646e2e636f6d2f696d6167652f64657369676e7061747465726e2f666c79776569676874312e706e67\" alt=\"\" \/><\/a><\/p> \n <p>\u6240\u8c13\u4eab\u5143\u6a21\u5f0f\u5c31\u662f\u8fd0\u884c\u5171\u4eab\u6280\u672f\u6709\u6548\u5730\u652f\u6301\u5927\u91cf\u7ec6\u7c92\u5ea6\u5bf9\u8c61\u7684\u590d\u7528\u3002\u7cfb\u7edf\u4f7f\u7528\u5c11\u91cf\u5bf9\u8c61,\u800c\u4e14\u8fd9\u4e9b\u90fd\u6bd4\u8f83\u76f8\u4f3c\uff0c\u72b6\u6001\u53d8\u5316\u5c0f\uff0c\u53ef\u4ee5\u5b9e\u73b0\u5bf9\u8c61\u7684\u591a\u6b21\u590d\u7528\u3002\u5171\u4eab\u6a21\u5f0f\u662f\u652f\u6301\u5927\u91cf\u7ec6\u7c92\u5ea6\u5bf9\u8c61\u7684\u590d\u7528\uff0c\u6240\u4ee5\u4eab\u5143\u6a21\u5f0f\u8981\u6c42\u80fd\u591f\u5171\u4eab\u7684\u5bf9\u8c61\u5fc5\u987b\u662f\u7ec6\u7c92\u5ea6\u5bf9\u8c61\u3002<br \/>\u4e24\u4e2a\u91cd\u8981\u7684\u6982\u5ff5\uff1a\u5185\u90e8\u72b6\u6001\u3001\u5916\u90e8\u72b6\u6001\u3002<\/p> \n <ul> \n  <li>\u5185\u90e8\u72b6\u6001\uff1a\u5728\u4eab\u5143\u5bf9\u8c61\u5185\u90e8\u4e0d\u968f\u5916\u754c\u73af\u5883\u6539\u53d8\u800c\u6539\u53d8\u7684\u5171\u4eab\u90e8\u5206\u3002<\/li> \n  <li>\u5916\u90e8\u72b6\u6001\uff1a\u968f\u7740\u73af\u5883\u7684\u6539\u53d8\u800c\u6539\u53d8\uff0c\u4e0d\u80fd\u591f\u5171\u4eab\u7684\u72b6\u6001\u5c31\u662f\u5916\u90e8\u72b6\u6001\u3002<\/li> \n <\/ul> \n <p>\u6b63\u56e0\u4e3a\u4eab\u5143\u6a21\u5f0f\u533a\u5206\u4e86\u5185\u90e8\u72b6\u6001\u548c\u5916\u90e8\u72b6\u6001\uff0c\u6211\u4eec\u5c31\u53ef\u4ee5\u901a\u8fc7\u8bbe\u7f6e\u4e0d\u540c\u7684\u5916\u90e8\u72b6\u6001\u4f7f\u5f97\u76f8\u540c\u7684\u5bf9\u8c61\u53ef\u4ee5\u5177\u5907\u4e00\u4e9b\u4e0d\u540c\u7684\u7279\u6027\uff0c\u800c\u5185\u90e8\u72b6\u6001\u8bbe\u7f6e\u4e3a\u76f8\u540c\u90e8\u5206\u3002\u5728\u6211\u4eec\u7684\u7a0b\u5e8f\u8bbe\u8ba1\u8fc7\u7a0b\u4e2d\uff0c\u6211\u4eec\u53ef\u80fd\u4f1a\u9700\u8981\u5927\u91cf\u7684\u7ec6\u7c92\u5ea6\u5bf9\u8c61\u6765\u8868\u793a\u5bf9\u8c61\uff0c\u5982\u679c\u8fd9\u4e9b\u5bf9\u8c61\u9664\u4e86\u51e0\u4e2a\u53c2\u6570\u4e0d\u540c\u5916\u5176\u4ed6\u90e8\u5206\u90fd\u76f8\u540c\uff0c\u8fd9\u4e2a\u65f6\u5019\u6211\u4eec\u5c31\u53ef\u4ee5\u5229\u7528\u4eab\u5143\u6a21\u5f0f\u6765\u5927\u5927\u51cf\u5c11\u5e94\u7528\u7a0b\u5e8f\u5f53\u4e2d\u7684\u5bf9\u8c61\u3002\u5982\u4f55\u5229\u7528\u4eab\u5143\u6a21\u5f0f\u5462\uff1f\u8fd9\u91cc\u6211\u4eec\u53ea\u9700\u8981\u5c06\u4ed6\u4eec\u5c11\u90e8\u5206\u7684\u4e0d\u540c\u7684\u90e8\u5206\u5f53\u505a\u53c2\u6570\u79fb\u52a8\u5230\u7c7b\u5b9e\u4f8b\u7684\u5916\u90e8\u53bb\uff0c\u7136\u540e\u518d\u65b9\u6cd5\u8c03\u7528\u7684\u65f6\u5019\u5c06\u4ed6\u4eec\u4f20\u9012\u8fc7\u6765\u5c31\u53ef\u4ee5\u4e86<\/p> \n <h3>\u5177\u4f53\u4ee3\u7801\u5b9e\u73b0<\/h3> \n <p><a><img src=\"https:\/\/camo.githubusercontent.com\/807ac53da5485dca94424ed6fd89ee647a0f34b1\/687474703a2f2f6f77767365747571752e626b742e636c6f7564646e2e636f6d2f696d6167652f64657369676e7061747465726e2f666c79776569676874322e6a7067\" alt=\"\" \/><\/a><\/p> \n <div class=\"cnblogs_Highlighter\"> \n  <pre class=\"brush:csharp;gutter:true;\">\/\/\/ &lt;summary&gt;\n\/\/\/ \u62bd\u8c61\u4eab\u5143\u7c7b\n\/\/\/ &lt;\/summary&gt;\npublic abstract class Flyweight\n{\n    public abstract void Operation(int extrinsicstate);\n}\n\n\/\/\/ &lt;summary&gt;\n\/\/\/ \u5177\u4f53\u4eab\u5143\u5bf9\u8c61\n\/\/\/ &lt;\/summary&gt;\npublic class ConcreteFlyweight : Flyweight\n{\n    \/\/\/ &lt;summary&gt;\n    \/\/\/ \u5185\u90e8\u72b6\u6001\n    \/\/\/ &lt;\/summary&gt;\n    private string intrinsicstate;\n\n    \/\/\/ &lt;summary&gt;\n    \/\/\/ \u6784\u9020\u51fd\u6570\n    \/\/\/ &lt;\/summary&gt;\n    \/\/\/ &lt;param name=&quot;innerState&quot;&gt;&lt;\/param&gt;\n    public ConcreteFlyweight(string innerState)\n    {\n        this.intrinsicstate = innerState;\n    }\n\n    \/\/\/ &lt;summary&gt;\n    \/\/\/ \u64cd\u4f5c\n    \/\/\/ &lt;\/summary&gt;\n    \/\/\/ &lt;param name=&quot;extrinsicaste&quot;&gt;\u5916\u90e8\u72b6\u6001&lt;\/param&gt;\n    public override void Operation(int extrinsicstate)\n    {\n        Console.WriteLine($&quot;\u5177\u4f53\u5b9e\u73b0\u7c7b: intrinsicstate {intrinsicstate}, extrinsicstate {extrinsicstate}&quot;);\n    }\n}\n\n\/\/\/ &lt;summary&gt;\n\/\/\/ \u4eab\u5143\u5de5\u5382\uff0c\u8d1f\u8d23\u521b\u5efa\u548c\u7ba1\u7406\u4eab\u5143\u5bf9\u8c61\n\/\/\/ &lt;\/summary&gt;\npublic class FlyweightFactory\n{\n    \/\/\/ &lt;summary&gt;\n    \/\/\/ \u4eab\u5143\u5bf9\u8c61\u5185\u5b58\u7f13\u5b58\n    \/\/\/ &lt;\/summary&gt;\n    public Dictionary&lt;string, Flyweight&gt; flyweights = new Dictionary&lt;string, Flyweight&gt;();\n\n    public FlyweightFactory()\n    {\n        flyweights.Add(&quot;A&quot;, new ConcreteFlyweight(&quot;A&quot;));\n        flyweights.Add(&quot;B&quot;, new ConcreteFlyweight(&quot;B&quot;));\n        flyweights.Add(&quot;C&quot;, new ConcreteFlyweight(&quot;C&quot;));\n    }\n\n    public Flyweight GetFlyweight(string key)\n    {\n        if (!flyweights.ContainsKey(key))\n        {\n            Console.WriteLine($&quot;\u9a7b\u7559\u6c60\u4e2d\u4e0d\u5b58\u5728\u5b57\u7b26\u4e32{key}&quot;);\n\n            flyweights.Add(key, new ConcreteFlyweight(key));\n        }\n\n        return flyweights[key] as Flyweight;\n    }\n}\n\n\/\/\/ &lt;summary&gt;\n\/\/\/ \u5ba2\u6237\u7aef\u8c03\u7528\n\/\/\/ &lt;\/summary&gt;\n\/\/\/ &lt;param name=&quot;args&quot;&gt;&lt;\/param&gt;\nstatic void Main(string[] args)\n{\n    int externalstate = 10; \/\/ \u5b9a\u4e49\u5916\u90e8\u72b6\u6001\uff0c\u5982\u5b57\u6bcd\u7684\u4f4d\u7f6e\u7b49\u4fe1\u606f\n    FlyweightFactory factory = new FlyweightFactory(); \/\/ \u521d\u59cb\u5316\u4eab\u5143\u5de5\u5382\n\n    Flyweight fa = factory.GetFlyweight(&quot;A&quot;);\n    fa.Operation(--externalstate);\n\n    Flyweight fb = factory.GetFlyweight(&quot;B&quot;);\n    fb.Operation(--externalstate);\n\n    Flyweight fd = factory.GetFlyweight(&quot;D&quot;);\n    fd.Operation(--externalstate);\n\n    Console.ReadLine();\n}<\/pre> \n <\/div> \n <p>\u8f93\u51fa<\/p> \n <pre><code>\u5177\u4f53\u5b9e\u73b0\u7c7b: intrinsicstate A, extrinsicstate 9\n\u5177\u4f53\u5b9e\u73b0\u7c7b: intrinsicstate B, extrinsicstate 8\n\u9a7b\u7559\u6c60\u4e2d\u4e0d\u5b58\u5728\u5b57\u7b26\u4e32D\n\u5177\u4f53\u5b9e\u73b0\u7c7b: intrinsicstate D, extrinsicstate 7\n<\/code><\/pre> \n <h3>\u4eab\u5143\u6a21\u5f0f\u7684\u4f18\u7f3a\u70b9<\/h3> \n <p><strong>\u4f18\u70b9\uff1a<\/strong> \u964d\u4f4e\u4e86\u7cfb\u7edf\u4e2d\u5bf9\u8c61\u7684\u6570\u91cf\uff0c\u4ece\u800c\u964d\u4f4e\u4e86\u7cfb\u7edf\u4e2d\u7ec6\u7c92\u5ea6\u5bf9\u8c61\u7ed9\u5185\u5b58\u5e26\u6765\u7684\u538b\u529b\u3002<br \/><strong>\u7f3a\u70b9\uff1a<\/strong> \u4e3a\u4e86\u4f7f\u5bf9\u8c61\u53ef\u4ee5\u5171\u4eab\uff0c\u9700\u8981\u5c06\u4e00\u4e9b\u72b6\u6001\u5916\u90e8\u5316\uff0c\u8fd9\u4f7f\u5f97\u7a0b\u5e8f\u7684\u903b\u8f91\u66f4\u590d\u6742\uff0c\u4f7f\u7cfb\u7edf\u590d\u6742\u5316\u3002<\/p> \n <h3>\u4eab\u5143\u6a21\u5f0f\u7684\u5e94\u7528\u573a\u666f<\/h3> \n <p>\u5728\u4e0b\u9762\u6240\u6709\u6761\u4ef6\u90fd\u6ee1\u8db3\u65f6\uff0c\u53ef\u4ee5\u8003\u8651\u4f7f\u7528\u4eab\u5143\u6a21\u5f0f\uff1a<\/p> \n <ul> \n  <li>\u4e00\u4e2a\u7cfb\u7edf\u4e2d\u6709\u5927\u91cf\u7684\u5bf9\u8c61\uff1b<\/li> \n  <li>\u8fd9\u4e9b\u5bf9\u8c61\u8017\u8d39\u5927\u91cf\u7684\u5185\u5b58\uff1b<\/li> \n  <li>\u8fd9\u4e9b\u5bf9\u8c61\u4e2d\u7684\u72b6\u6001\u5927\u90e8\u5206\u90fd\u53ef\u4ee5\u88ab\u5916\u90e8\u5316<\/li> \n  <li>\u8fd9\u4e9b\u5bf9\u8c61\u53ef\u4ee5\u6309\u7167\u5185\u90e8\u72b6\u6001\u5206\u6210\u5f88\u591a\u7684\u7ec4\uff0c\u5f53\u628a\u5916\u90e8\u5bf9\u8c61\u4ece\u5bf9\u8c61\u4e2d\u5254\u9664\u65f6\uff0c\u6bcf\u4e00\u4e2a\u7ec4\u90fd\u53ef\u4ee5\u4ec5\u7528\u4e00\u4e2a\u5bf9\u8c61\u4ee3\u66ff<\/li> \n  <li>\u8f6f\u4ef6\u7cfb\u7edf\u4e0d\u4f9d\u8d56\u8fd9\u4e9b\u5bf9\u8c61\u7684\u8eab\u4efd\uff0c<\/li> \n <\/ul> \n <p>.NET\u4e2d\uff0cString\u7c7b\u7684\u5b9e\u73b0\u7528\u5230\u4e86\u4eab\u5143\u6a21\u5f0f\uff0c\u53ef\u4ee5\u53c2\u8003\u5b57\u7b26\u4e32\u9a7b\u7559\u6c60\u7684\u76f8\u5173\u4ecb\u7ecd\u3002<\/p> \n <p><a target=\"_blank\">\u4ee3\u7801<\/a><\/p>\n<\/div>","orderid":"0","title":"\u8bbe\u8ba1\u6a21\u5f0f\u4e4b\u4eab\u5143\u6a21\u5f0f","smalltitle":"","mid":"0","fname":"\u5206\u6790\u8bbe\u8ba1","special_id":"0","bak_id":"0","info":"0","hits":"8637","pages":"1","comments":"0","posttime":"2017-10-16 18:20:16","list":"1508149216","username":"admin","author":"","copyfrom":"","copyfromurl":"","titlecolor":"","fonttype":"0","titleicon":"0","picurl":"https:\/\/www.cppentry.com\/upload_files\/","ispic":"0","yz":"1","yzer":"","yztime":"0","levels":"0","levelstime":"0","keywords":"<A HREF='https:\/\/www.cppentry.com\/do\/search.php?type=keyword&keyword=%C9%E8%BC%C6%C4%A3%CA%BD' target=_blank>\u8bbe\u8ba1\u6a21\u5f0f<\/A> <A HREF='https:\/\/www.cppentry.com\/do\/search.php?type=keyword&keyword=%C4%A3%CA%BD' target=_blank>\u6a21\u5f0f<\/A>","jumpurl":"","iframeurl":"","style":"","template":"a:3:{s:4:\"head\";s:0:\"\";s:4:\"foot\";s:0:\"\";s:8:\"bencandy\";s:0:\"\";}","target":"0","ip":"113.108.110.181","lastfid":"0","money":"0","buyuser":"","passwd":"","allowdown":"","allowview":"","editer":"","edittime":"0","begintime":"0","endtime":"0","description":"\u8bbe\u8ba1\u6a21\u5f0f\u4e4b\u4eab\u5143\u6a21\u5f0f","lastview":"1713474916","digg_num":"6365","digg_time":"0","forbidcomment":"0","ifvote":"0","heart":"","htmlname":"","city_id":"0"},"page":"1"}