&是什么QUOT;计数++ QUOT;在C＃中返回？ [英] What does "count++" return in C#?

问题描述

恰好碰到了一些代码，这不是做什么，我想它应该。难道其他人认为这应该返回1？是否有一个很好的解释，为什么它不？

Just ran into a bit of code that wasn't doing what I thought it should. Do other people think this should return 1? Is there a good explanation as to why it doesn't??

int count = 0;

count++.ToString(); // Returns 1 no?

我一直以为计数++是一样的计算= + 1 ...

I always thought count++ was the same as count = count + 1...

推荐答案

X ++ 是后的增量运营商。这意味着，值 X 递增，但的 老的（非增量）x值返回（在你的情况下0，到的ToString 应用）

x++ is a post increment operator. It means that the value of x is incremented, but the old (non-incremented) value of x is returned (0 in your case, to which ToString is applied).

要搞定的。你想要的行为，使用的前的递增运算符 ++ X 。

To get the behavior you want, use the pre increment operator ++x.

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