什么是0！(What does 0! means in vb6.0? [duplicate])

什么是0！(What does 0! means in vb6.0? [duplicate])

这个问题在这里已经有了答案：

做什么 ！ 和＃意味着什么时候附加到VB6中的数字？ 3个答案

我发现了一个代码，在IF条件为0的情况下！ 与用户输入的值相比较。 我试着'0！' 即时窗口中的值，它仅返回0。

所以，我想知道'！' 正好签名？

提前致谢。

This question already has an answer here:

What do ! and # mean when attached to numbers in VB6? 3 answers

I have found a code where in IF condition 0! compared to the user entered value. I tried with '0!' value in immediate window and it is returning 0 only.

So, I want to to know what '!' sign exactly for??

Thanks in advance.

最满意答案

http://msdn.microsoft.com/en-us/library/s9cz43ek(v=vs.80).aspx

它强制文字0的类型为Single。

另请参阅： http : //msdn.microsoft.com/en-us/library/dzy06xhf.aspx关于附加类型字符。

0！ 表示它是一个浮点数（Single）而不是一个整数。

typeOf 0! is Single typeOf 0 is Integer

http://msdn.microsoft.com/en-us/library/s9cz43ek(v=vs.80).aspx

It forces the type of the literal 0 to be Single.

See also: http://msdn.microsoft.com/en-us/library/dzy06xhf.aspx about appended type characters.

0! indicates it is a floating point number (Single) instead of an integer.

typeOf 0! is Single typeOf 0 is Integer