如何指示字符串是否具有数值 [英] How to indicate if string has numeric value

问题描述

我循环遍历字符串变量 data，它可能具有整数数值，例如 "123".如果这个字符串变量有数值，我想指出它并考虑使用这样的:

I loop over string variable data which may have integer numeric value, like "123". If this string variable has numeric value, I want to indicate it and thought to use some like this:

If IsNumeric(CInt(data)) Then 
    WScript.Echo "Number"
Else
    WScript.Echo "String"
End If

但是 CInt() 每次 data 变量无法转换为整数时都会引发错误:

But CInt() raises error every time data variable can't be converted to integer:

类型不匹配:'CInt'

如何在 vbscript 中指示字符串是否具有整数值?

How can I indicate if string has integer value in vbscript?

推荐答案

IsNumeric vb 脚本的函数可用于判断表达式是否可以计算为数字.它根据表达式返回布尔值

IsNumeric Function of vb script can be used to determine whether an expression can be evaluated as a number.It returns Boolean value depending upon expression

请注意，如果表达式是日期表达式，则 IsNumeric 返回 False.

Please be noted that IsNumeric returns False if expression is a date expression.

现在，在您的代码中，您误认为即使它不是数字，您也试图将其转换为整数

Now, in your code you have mistaken that even if it is not number, you trying to convert it into integer

您可以像这样在代码中使用它--

You can use this in your code like this--

If IsNumeric(data) Then       
   WScript.Echo "Number"
Else
   WScript.Echo "String"
End If

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