StringIsDigit

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StringIsDigit

检查字符串是否仅包含数字(0-9)字符.

StringIsDigit ( "string" )

参数

string

目标字符串

返回值

成功:	返回 1.
失败:	返回 0, 字符串含有非数字字符.

备注

见示例.

函数示例

#include <MsgBoxConstants.au3>
MsgBox($MB_SYSTEMMODAL, "", "Is the string 42 a digit: " & StringIsDigit("42") & @CRLF & _ ; Returns 1, as the string contains only digit (0-9) characters.
        "Is the string 00 a digit: " & StringIsDigit("00") & @CRLF & _ ; Returns 1, as the string contains only digit (0-9) characters.
        "Is the string 1.0 a digit: " & StringIsDigit("1.0") & @CRLF & _ ; Returns 0, due to the decimal point.
        "Is the number 1.0 a digit: " & StringIsDigit(1.0) & @CRLF & _ ; Returns 1, due to the number to string conversion.
        "Is the string 1+2 a digit: " & StringIsDigit("1+2") & @CRLF) ; Returns 0, as the + (plus) symbol is present in the string.

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该函数可以通过命令 exect 调用

参见:

StringIsXDigit, StringIsFloat, StringIsInt, StringIsAlNum, StringIsASCII

例子

如何创建一个按钮?

StringIsDigit('12333') ; 返回1

StringIsDigit('1.5') ; 由于十进制数字返回0

StringIsDigit('1~~2~~3') ; 为空格返回0

StringIsDigit('') ; 返回0

exect=$var_is=StringIsDigit('12333')||$var_bb=StringIsDigit('1.2') GLOBALEXECT<a> ;; 检查字符串中只有数字的存在(0-9)