新建和覆盖的区别 - Difference between new and override

问题：

Wondering what the difference is between the following:想知道以下之间有什么区别：

Case 1: Base Class案例 1：基类

public void DoIt();

Case 1: Inherited class案例一：继承类

public new void DoIt();

Case 2: Base Class案例 2：基类

public virtual void DoIt();

Case 2: Inherited class案例二：继承类

public override void DoIt();

Both case 1 and 2 appear to have the same effect based on the tests I have run.根据我运行的测试，案例 1 和案例 2 似乎具有相同的效果。 Is there a difference, or a preferred way?有什么区别，还是首选方式？

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解决方案：

参考一： https://stackoom.com/question/5ryZ
参考二： Difference between new and override