电话号码正则表达式（支持手机号码，3-4位区号，7-8位直播号码，1－4位分机号）
((\d{11})|^((\d{7,8})|(\d{4}|\d{3})-(\d{7,8})|(\d{4}|\d{3})-(\d{7,8})-(\d{4}|\d{3}|\d{2}|\d{1})|(\d{7,8})-(\d{4}|\d{3}|\d{2}|\d{1}))$)
匹配格式：
11位手机号码
3-4位区号，7-8位直播号码，1－4位分机号
如：12345678901、1234-12345678-1234
"^\d+$"
"^[0-9]*[1-9][0-9]*$"
"^((-\d+)|(0+))$"
"^-[0-9]*[1-9][0-9]*$"
"^-?\d+$"
"^\d+(\.\d+)?$"
"^(([0-9]+\.[0-9]*[1-9][0-9]*)|([0-9]*[1-9][0-9]*\.[0-9]+)|([0-9]*[1-9][0-9]*))$"
"^((-\d+(\.\d+)?)|(0+(\.0+)?))$"
"^(-(([0-9]+\.[0-9]*[1-9][0-9]*)|([0-9]*[1-9][0-9]*\.[0-9]+)|([0-9]*[1-9][0-9]*)))$"
数
"^(-?\d+)(\.\d+)?$"
"^[A-Za-z]+$"
"^[A-Z]+$"
"^[a-z]+$"
"^[A-Za-z0-9]+$"
"^\w+$"
"^[\w-]+(\.[\w-]+)*@[\w-]+(\.[\w-]+)+$"
"^[a-zA-z]+://(\w+(-\w+)*)(\.(\w+(-\w+)*))*(\?\S*)?$" //url
/^13\d{9}$/gi手机号正则表达式
public static bool IsValidMobileNo(string MobileNo)
{
const string regPattern
= @"^(130|131|132|133|134|135|136|137|138|139)\d{8}$";
return Regex.IsMatch(MobileNo,
regPattern);
}