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Update C++.md #17

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Update C++.md
Sonder037 Mar 25, 2025
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Sonder037 Mar 25, 2025
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4 changes: 2 additions & 2 deletions C++.md
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Expand Up @@ -1142,7 +1142,7 @@ c++没有强制规定虚函数的实现方式。**编译器中主要用虚表指

①**友元函数**不是虚函数，因为友元函数不是类成员，只有类成员才能使虚函数。

②**静态成员函数**不能是虚。在C++中，静态成员函数不能被声明为virtual函数。首先会编译失败，也就是不能同过编译。
②**静态成员函数**不能是虚。在C++中，静态成员函数不能被声明为virtual函数。首先会编译失败，也就是不能通过编译。

原因如下：

Expand All @@ -1165,7 +1165,7 @@ c++没有强制规定虚函数的实现方式。**编译器中主要用虚表指

- **编译器如何处理虚函数表**

对于派生类来说，编译器简历虚表的过程有三步：
对于派生类来说，编译器建立虚表的过程有三步：

1. 拷贝基类的虚函数表，如果是多继承，就拷贝每个基类的虚函数表
2. 查看派生类中是否有重写基类的虚函数，如果有，就替换成已经重写后的虚函数地址
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