Flex密码校验：必须含有数字、大小写字母、特殊字符，长度6-20
public static function csCheck(passString:String):uint
{

if(!passString)return 0;

var count:uint = 0;

if(passString.length>=6 && passString.length<=20){
count += 20;
}

count += !passString.match(/[a-z]/i)?0:(passString.match(/[a-z]/) && passString.match(/[A-Z]/)?20:10);

count += !passString.match(/[0-9]/)?0:(passString.match(/[0-9]/g).length >= 1?20:10);

count += !passString.match(/\W/)?0:(passString.match(/\W/g).length >= 1?25:10);

count += !passString.match(/[0-9]/)||!passString.match(/[a-z]/i)?0:(!passString.match(/\W/)?2:(!passString.match(/[a-z]/) || !passString.match(/[A-Z]/)?3:5));

return count;
}