function checkIP2(sIPAddress) { var exp=/^(\d{1,2}|1\d\d|2[0-4]\d|25[0-5])\.(\d{1,2}|1\d\d|2[0-4]\d|25[0-5])\.(\d{1,2}|1\d\d|2[0-4]\d|25[0-5])\.(\d{1,2}|1\d\d|2[0-4]\d|25[0-5])$/; var reg = sIPAddress.match(exp); var ErrMsg="你输入的是一个非法的IP地址段!\nIP段为::xxx.xxx.xxx.xxx(xxx为0-255)!" ...[ 查看全文 ]