{"id":182,"date":"2017-07-17T12:43:09","date_gmt":"2017-07-17T04:43:09","guid":{"rendered":"http:\/\/zsaber.com\/blog\/?p=182"},"modified":"2019-08-26T15:51:53","modified_gmt":"2019-08-26T07:51:53","slug":"c-%e7%bc%96%e8%af%91%e8%be%93%e5%87%ba%e5%a4%a7%e5%b0%8f%e9%82%a3%e4%ba%9b%e4%ba%8b%e5%84%bf","status":"publish","type":"post","link":"http:\/\/zsaber.com\/blog\/p\/182","title":{"rendered":"C++ \u7f16\u8bd1\u8f93\u51fa\u5927\u5c0f\u90a3\u4e9b\u4e8b\u513f"},"content":{"rendered":"<p>\u4e0d\u77e5\u5404\u4f4d\u64b8 C\u8279 \u7684\u65f6\u5019\u662f\u5426\u9047\u89c1\u8fc7\u8fd9\u79cd\u5c34\u5c2c\u7684\u60c5\u51b5:<\/p>\n<p>\u7528\u5c3d\u4e86\u5404\u79cd &quot;\u4f18\u96c5&quot; \u7684\u59ff\u52bf\u5b9e\u73b0\u4e86\u5f88\u591a\u9ad8\u7ea7\u7684\u529f\u80fd (\u5c24\u5176\u662f\u6a21\u677f), \u5f00\u5fc3\u7684\u7f16\u8bd1\u4e00\u770b, \u7ed3\u679c\u53d1\u73b0\u8f93\u51fa\u6587\u4ef6\u5de8\u5927\u65e0\u6bd4<\/p>\n<p>\u867d\u7136\u8fd9\u5e76\u4e0d\u662f\u4ec0\u4e48\u7279\u522b\u4e25\u91cd\u7684\u95ee\u9898, \u4f46\u81f3\u5c11\u5b58\u5728\u4ee5\u4e0b\u95ee\u9898:<\/p>\n<ul>\n<li>\u5b89\u88c5\u5305\u5927\u5c0f, \u5c24\u5176\u5bf9\u4e8e\u79fb\u52a8\u7aef\u6765\u8bf4\u5e76\u4e0d\u662f\u4ec0\u4e48\u597d\u4e8b<\/li>\n<li>\u5927\u5230\u4e00\u5b9a\u7a0b\u5ea6, \u8fd8\u4f1a\u78b0\u5230\u5404\u79cd\u795e\u5947\u7684 <code>too many section<\/code> <code>file too large<\/code> \u4e4b\u7c7b\u7684\u9519\u8bef, \u9664\u4e86\u62c6\u5206\u4ee3\u7801\u5916\u6ca1\u6709\u5f88\u597d\u7684\u89e3\u51b3\u65b9\u5f0f<\/li>\n<\/ul>\n<p>so, \u8fd9\u6b21\u6765\u6298\u817e\u4e0b\u7f16\u8bd1\u8f93\u51fa\u5927\u5c0f\u7684\u4f18\u5316\u95ee\u9898<\/p>\n<h1>\u6a21\u677f<\/h1>\n<p>\u4f5c\u4e3a C\u8279 \u4e16\u754c\u7684\u4e00\u7b49\u516c\u6c11, \u6a21\u677f\u5e26\u6765\u4fbf\u5229\u7684\u540c\u65f6, \u4e5f\u5e26\u6765\u4e86\u5f88\u591a\u5927\u5751, \u5176\u4e2d\u4e4b\u4e00\u4fbf\u662f\u7f16\u8bd1\u8f93\u51fa\u5927\u5c0f\u95ee\u9898<\/p>\n<ul>\n<li>\n<p>\u5bf9\u4e8e\u540c\u4e00\u4e2a\u6a21\u677f, \u5b9e\u4f8b\u5316\u4e0d\u540c\u7c7b\u578b\u65f6, \u4f1a\u4e3a\u6bcf\u4e2a\u7c7b\u578b\u751f\u6210\u4e00\u4efd\u5b8c\u6574\u7684\u4ee3\u7801<\/p>\n<p>\u4f18\u5316\u5957\u8def: \u5c3d\u91cf\u51cf\u5c11\u5b9e\u4f8b\u5316\u7c7b\u578b, \u4f8b\u5982, <code>vector&lt;MyType&gt;<\/code> \u548c <code>vector&lt;MyType *&gt;<\/code> \u5c31\u662f\u4e0d\u4e00\u6837\u7684\u7c7b\u578b, \u5c3d\u91cf\u8003\u8651\u53ea\u7559\u5176\u4e2d\u4e00\u79cd<\/p>\n<p>\u53c8\u5982 <code>MyClass&lt;A, B&gt;<\/code> \u5c3d\u91cf\u62c6\u5206\u4e3a <code>MyClass0&lt;A&gt;<\/code> \u548c <code>MyClass1&lt;B&gt;<\/code>, \u5426\u5219\u6a21\u677f\u53c2\u6570\u6392\u5217\u7ec4\u5408\u7279\u5316\u5bb9\u6613\u9020\u6210\u6a21\u677f\u5b9e\u4f8b\u5316\u4e2a\u6570\u660e\u663e\u589e\u957f<\/p>\n<\/li>\n<li>\n<p>\u901a\u5e38\u6765\u8bf4, \u6240\u6709\u6a21\u677f\u9ed8\u8ba4 inline<\/p>\n<p>\u4f18\u5316\u5957\u8def: \u6a21\u677f\u51fd\u6570\u4e2d\u7684\u5185\u5bb9\u5982\u679c\u6bd4\u8f83\u591a, \u5373\u4f7f\u5e76\u4e0d\u9700\u8981\u590d\u7528, \u4e5f\u5c3d\u91cf\u62bd\u53d6\u4e3a extern function, \u907f\u514d\u88ab inline, \u51cf\u5c11\u6a21\u677f\u51fd\u6570\u4e2d\u7684\u4ee3\u7801\u91cf<\/p>\n<\/li>\n<\/ul>\n<h1>\u9759\u6001\u53d8\u91cf<\/h1>\n<p>\u5c24\u5176\u662f\u5934\u6587\u4ef6\u4e2d\u7533\u660e\u7684\u9759\u6001\u53d8\u91cf, \u88ab\u591a\u4e2a cpp \u6587\u4ef6\u5f15\u7528\u65f6, \u53ef\u80fd\u751f\u6210\u591a\u4efd\u9759\u6001\u53d8\u91cf<\/p>\n<p>\u5178\u578b\u4f8b\u5b50:<\/p>\n<pre><code class=\"language-cpp\">class MyClass {\npublic:\n    static MyClass &amp;instance(void) {\n        static MyClass d;\n        return d;\n    }\n};<\/code><\/pre>\n<p>\u4f18\u5316\u5957\u8def:<\/p>\n<pre><code class=\"language-cpp\">\/\/ in header file\nclass MyClass {\npublic:\n    static MyClass &amp;instance(void);\n};\n\/\/ in source file\nMyClass &amp;MyClass::instance(void)\n{\n    static MyClass d;\n    return d;\n}<\/code><\/pre>\n<p>\u6b64\u5916, \u5e94\u7edd\u5bf9\u675c\u7edd\u5728\u5934\u6587\u4ef6\u76f4\u63a5\u7533\u660e\u9759\u6001\u53d8\u91cf:<\/p>\n<pre><code class=\"language-cpp\">\/\/ in header file\nstatic MyClass myClass;<\/code><\/pre>\n<p>\u8fd9\u79cd\u867d\u7136\u4e0d\u4f1a\u7f16\u8bd1\u9519\u8bef, \u4f46\u662f\u4f1a\u5728\u6240\u6709\u5f15\u7528\u4e86\u8be5\u5934\u6587\u4ef6\u7684 cpp \u5185\u751f\u6210\u4e00\u4efd\u9759\u6001\u53d8\u91cf,<br \/>\n\u6240\u4ee5, \u867d\u7136\u53ef\u80fd\u53ea\u662f\u60f3\u505a\u4e9b\u7b80\u5355\u7684\u9759\u6001\u6ce8\u518c, \u4f46\u8fd8\u662f\u8001\u5b9e\u7684\u4e22 cpp \u6587\u4ef6\u5185\u5427<\/p>\n<h1>\u51fd\u6570\u540d\u957f\u5ea6\u548c\u51fd\u6570\u4e2a\u6570<\/h1>\n<p>\u8fd9\u4e2a\u4e00\u822c\u6765\u8bf4\u4e0d\u662f\u4ec0\u4e48\u5927\u95ee\u9898, \u4f46\u662f\u4e2a\u6570\u591a\u7684\u65f6\u5019\u95ee\u9898\u5c31\u4f1a\u51f8\u663e\u51fa\u6765\u4e86<\/p>\n<p>\u901a\u5e38\u51fa\u73b0\u5728\u7528\u5b8f\u6279\u91cf\u751f\u6210\u4e00\u4e9b\u51fd\u6570\u7684\u65f6\u5019, \u4e0d\u8fc7\u4f1a\u7528\u5230\u8fd9\u79cd\u7684\u4e00\u822c\u4e5f\u4e0d\u662f\u5e38\u89c4\u8bbe\u8ba1,<br \/>\n\u6240\u4ee5\u4e5f\u6ca1\u6709\u4ec0\u4e48\u5957\u8def\u53ef\u4ee5\u4f7f, \u89c1\u673a\u884c\u4e8b\u5427<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u4e0d\u77e5\u5404\u4f4d\u64b8 C\u8279 \u7684\u65f6\u5019\u662f\u5426\u9047\u89c1\u8fc7\u8fd9\u79cd\u5c34\u5c2c\u7684\u60c5\u51b5: \u7528\u5c3d\u4e86\u5404\u79cd &quot;\u4f18\u96c5&quot; \u7684\u59ff\u52bf\u5b9e\u73b0\u4e86\u5f88\u591a\u2026 <span class=\"read-more\"><a href=\"http:\/\/zsaber.com\/blog\/p\/182\">Read More &raquo;<\/a><\/span><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[5],"tags":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v23.0 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>C++ \u7f16\u8bd1\u8f93\u51fa\u5927\u5c0f\u90a3\u4e9b\u4e8b\u513f - \u67d0Z\u7684\u535a\u5ba2<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"http:\/\/zsaber.com\/blog\/p\/182\" \/>\n<meta property=\"og:locale\" content=\"zh_CN\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"C++ \u7f16\u8bd1\u8f93\u51fa\u5927\u5c0f\u90a3\u4e9b\u4e8b\u513f - \u67d0Z\u7684\u535a\u5ba2\" \/>\n<meta property=\"og:description\" content=\"\u4e0d\u77e5\u5404\u4f4d\u64b8 C\u8279 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