重载和重写没有关系

最新推荐文章于 2025-05-19 10:17:20 发布

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本文详细介绍了方法重载(Overloading)的概念，通过示例展示了如何在同一类型中创建多个具有相同名称但参数数量或类型不同的成员。此外，还解释了方法重写(Overriding)，即在派生类中重新定义基类的虚拟方法的过程。

Member overloading means creating two or more members on the same type that differ only in the number or type of parameters but have the same name. For example, in the following, the WriteLine method is overloaded:

 
    public static class Console {
    public void WriteLine();
    public void WriteLine(string value);
    public void WriteLine(bool value);
    ...
}

 
   

overloading static int Add(int a ,int b) {return a+b;} static int Add(int a, int b ,int c) { return a+b+c; } 至于返回类型

For example, do not do the following:

C++

public void Write(string message, FileStream stream){}
public void Write(string line, FileStream file, bool closeStream){}

The correct definition for these overloads is as follows:

C++

public void Write(string message, FileStream stream){}
public void Write(string message, FileStream stream, bool closeStream){}

看MSDN。com

overriding 是将基类定义的virtual 方法重新定义 public virtual void SayHello() { Console.WriteLine("Hello") } 如果没有在子类中重写这个方法，调用它将用此方法的执行逻辑，如果在子类中重写 public override void SayHello(){ Console.WriteLine("Hello Nier")} 将使用子方法