使用正则表达式 (教程)¶
要使用正则表达式，请用 RegExp 对象。
下面的示例代码用正则表达式来决定指定的字符串是否是一个电子邮件地址。 Microsoft MSDN Library: Regular Expression Object (JavaScript)¶
[JavaScript]¶
str = "info@emurasoft.com";
re = new RegExp(
"^[\a-z0-9-]+(\\\.[\a-z0-9-]+)\*@[a-z0-9-]+(\\\.[a-z0-9-]+)\*(\\\.[a-z]{2,4})$", "i"
);
result = re.test( str );
if( result ) {
alert( "The email address is OK." );
}
else {
alert( "The email address is invalid." );
}
[VBScript]¶
str = "info@emurasoft.com"
Set regEx = New RegExp
regEx.Pattern = "^[\a-z0-9-]+(\\.[\a-z0-9-]+)\*@[a-z0-9-]+(\\.[a-z0-9-]+)\*(\\.[a-z]{2,4})$"
regEx.IgnoreCase = True
result = regEx.Test( str )
If result Then
alert "The email address is OK."
Else
alert "The email address is invalid."
End If
参考¶