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引用外链使用md的引用
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README.md
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README.md
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@ -176,7 +176,7 @@ inline int A::doA() { return 0; } // 需要显式内联
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#### 虚函数(virtual)可以是内联函数(inline)吗?
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[Are "inline virtual" member functions ever actually "inlined"?](http://www.cs.technion.ac.il/users/yechiel/c++-faq/inline-virtuals.html)
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> [Are "inline virtual" member functions ever actually "inlined"?](http://www.cs.technion.ac.il/users/yechiel/c++-faq/inline-virtuals.html)
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* 虚函数可以是内联函数,内联是可以修饰虚函数的,但是当虚函数表现多态性的时候不能内联。
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* 内联是在编译器建议编译器内联,而虚函数的多态性在运行期,编译器无法知道运行期调用哪个代码,因此虚函数表现为多态性时(运行期)不可以内联。
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@ -440,7 +440,7 @@ int main() {
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### C 实现 C++ 类
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[C 语言实现封装、继承和多态](http://dongxicheng.org/cpp/ooc/)
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> [C 语言实现封装、继承和多态](http://dongxicheng.org/cpp/ooc/)
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### explicit(显式)构造函数
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@ -864,7 +864,7 @@ virtual int A() = 0;
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### 虚函数、纯虚函数
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[CSDN . C++ 中的虚函数、纯虚函数区别和联系](https://blog.csdn.net/u012260238/article/details/53610462)
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> [CSDN . C++ 中的虚函数、纯虚函数区别和联系](https://blog.csdn.net/u012260238/article/details/53610462)
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* 类里如果声明了虚函数,这个函数是实现的,哪怕是空实现,它的作用就是为了能让这个函数在它的子类里面可以被覆盖,这样的话,这样编译器就可以使用后期绑定来达到多态了。纯虚函数只是一个接口,是个函数的声明而已,它要留到子类里去实现。
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* 虚函数在子类里面也可以不重载的;但纯虚函数必须在子类去实现。
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@ -978,7 +978,7 @@ new (palce_address) type [size] { braced initializer list }
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### delete this 合法吗?
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[Is it legal (and moral) for a member function to say delete this?](https://isocpp.org/wiki/faq/freestore-mgmt#delete-this)
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> [Is it legal (and moral) for a member function to say delete this?](https://isocpp.org/wiki/faq/freestore-mgmt#delete-this)
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合法,但:
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@ -989,7 +989,7 @@ new (palce_address) type [size] { braced initializer list }
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### 如何定义一个只能在堆上(栈上)生成对象的类?
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[如何定义一个只能在堆上(栈上)生成对象的类?](https://www.nowcoder.com/questionTerminal/0a584aa13f804f3ea72b442a065a7618)
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> [如何定义一个只能在堆上(栈上)生成对象的类?](https://www.nowcoder.com/questionTerminal/0a584aa13f804f3ea72b442a065a7618)
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#### 只能在堆上
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@ -1054,7 +1054,7 @@ unique_ptr 是 C++11 才开始提供的类型,是一种在异常时可以帮
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### 强制类型转换运算符
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[MSDN . 强制转换运算符](https://msdn.microsoft.com/zh-CN/library/5f6c9f8h.aspx)
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> [MSDN . 强制转换运算符](https://msdn.microsoft.com/zh-CN/library/5f6c9f8h.aspx)
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#### static_cast
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@ -2421,7 +2421,7 @@ TRACE | 回显服务器收到的请求,主要用于测试或诊断
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### Socket
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[Linux Socket 编程(不限 Linux)](https://www.cnblogs.com/skynet/archive/2010/12/12/1903949.html)
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> [Linux Socket 编程(不限 Linux)](https://www.cnblogs.com/skynet/archive/2010/12/12/1903949.html)
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![Socket 客户端服务器通讯](images/socket客户端服务器通讯.jpg)
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