//验证电话号码
public bool IsTelephone(string str_telephone){     return System.Text.RegularExpressions.											        Regex.IsMatch(str_telephone, @"^(\d{3,4}-)?\d{6,8}$");}

//验证密码public bool IsPassword(string str_password){    return System.Text.RegularExpressions.										        Regex.IsMatch(str_password, @"[A-Za-z]+[0-9]");}

//验证邮政编码public bool IsPostalcode(string str_postalcode){    return System.Text.RegularExpressions.        Regex.IsMatch(str_postalcode, @"^\d{6}$");}

//验证手机号码public bool IsHandset(string str_handset){    return System.Text.RegularExpressions.Regex.					        IsMatch(str_handset, @"^[1][3-5]\d{9}$");}

//验证身份证public bool IsIDcard(string str_idcard){    return System.Text.RegularExpressions.Regex.				        IsMatch(str_idcard, @"(^\d{18}$)|(^\d{15}$)");}

//验证小数格式public bool IsDecimal(string str_decimal){    return System.Text.RegularExpressions.Regex.					        IsMatch(str_decimal, @"^[0-9]+\.[0-9]{2}$");}

//验证月份public bool IsMonth(string str_Month){     return System.Text.RegularExpressions.Regex.					         IsMatch(str_Month, @"^(0?[[1-9]|1[0-2])$");}

//验证天数public bool IsDay(string str_day){    return System.Text.RegularExpressions.Regex.		        IsMatch(str_day, @"^((0?[1-9])|((1|2)[0-9])|30|31)$");}

//验证是否为数字public bool IsNumber(string str_number){    return System.Text.RegularExpressions.Regex.				        IsMatch(str_number, @"^[0-9]*$");}

//验证密码长度public bool IsPasswLength(string str_Length){    return System.Text.RegularExpressions.Regex.					         IsMatch(str_Length, @"^\d{6,18}$");}

//验证正整数public bool IsIntNumber(string str_intNumber){     return System.Text.RegularExpressions.Regex.					         IsMatch(str_intNumber, @"^\+?[1-9][0-9]*$");}

//验证大小写public bool IsUpChar(string str_UpChar){    return System.Text.RegularExpressions.Regex.					        IsMatch(str_UpChar, @"^[A-Z]+$");}public bool IsLowerChar(string str_UpChar){    return System.Text.RegularExpressions.Regex.									        IsMatch(str_UpChar, @"^[a-z]+$");}

//验证是否为字母public bool IsLetter(string str_Letter){    return System.Text.RegularExpressions.Regex.				        IsMatch(str_Letter, @"^[A-Za-z]+$");}

//验证是否为中文public bool IsChinese(string str_chinese){    return System.Text.RegularExpressions.Regex.					        IsMatch(str_chinese, @"^[\u4e00-\u9fa5]{1,}$");}

//验证邮箱public bool IsEmail(string str_Email){    return System.Text.RegularExpressions.Regex.IsMatch(str_Email,				          @"^(([\w\.]+)@(([[0-9]{1,3}\.[0-9]{1,3}\.[0-9]{1,3}))|((\w+\.?)+)@([a-zA-Z]{2,4}|[0-9]{1,3})(\.[a-zA-Z]{2,4}))$");}

//验证IPpublic bool IPCheck(string IP){    string num = @"(25[0-5]|2[0-4]\d|[0-1]\d{2}|[1-9]?\d)";		        return Regex.IsMatch(IP,										            ("^" + num + "\\." + num + "\\." + num + "\\." + num + "$"));}

//验证Urlpublic bool IsUrl(string str_url){    return System.Text.RegularExpressions.Regex.IsMatch(str_url,				      @"http(s)?://([\w-]+\.)+[\w-]+(/[\w- ./?%&=]*)?");}