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引用计数 是一种简单的 内存管理 方式,
Ref类为基类
. class Ref { private: unsigned int _RefCount; public: Ref() :_RefCount(1){} void retain() { ++_RefCount; } void release() { --_RefCount; if (_RefCount == 0) delete this; } }; .
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原文地址:http://my.oschina.net/kkkkkkkkkkkkk/blog/469678