c# enums -可以有双id[重复]

This question already has an answer here:

这个问题已经有了答案:

How to prevent duplicate values in enum? 3 answers
如何在枚举中防止重复值?3答案
Non-unique enum values 6 answers
非唯一枚举值6个答案

I just noticed that you can create something like this in C#:

我刚注意到你可以在c#中创建这样的东西:

enum TestEnum
{
  First = 1,
  Second = 1,
  Third = 2
}

[TestMethod]
public void Test()
{
  TestEnum test = TestEnum.First;
  var en = (TestEnum) 1;//And en is now set to First
}

We would like the enums value to be unique. Right now, I have written a unit test that checks that each value is only used once in our enum. Is there a better way to force the uniqueness?

我们希望枚举值是唯一的。现在，我编写了一个单元测试，它检查每个值在枚举中只使用一次。是否有更好的方法来加强独特性?

1 个解决方案

#1

Well enums are used to give meaning to integers. When you say Second = 1 that doesn't make sense but think of an example like that one:

恩，恩，恩，是用来赋予整数意义的。当你说第二个= 1时，这是没有意义的，但想想一个例子:

enum HumanEnum
{
    Man = 1,
    Woman = 0,
    Lady = 0,
    Boy = 1,
    Girl = 0
}

Let's say 0 and 1 represents the gender, in this way Man and Boy has the same gender value.

假设0和1代表性别，这样男人和男孩的性别价值是相同的。

#1