Think of some simple mathematical claim like 2 + 2 = 4.

举些简单的数学论断,如2 + 2 = 4

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But here's a new and improved, I think, version of increment; ++ returns nothing, takes nothing, but it does perform plus plus, but I did something stupid.

但这里是一个新的，改进了的increment版本;,没返回值，没输入值，但它执行的是，但是我做了件愚蠢的事情。

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