c# 正则表达式验证"身份证","手机号","邮箱地址","邮编"

public static class Verify
{
    /// <summary>
    /// 验证手机号码
    /// </summary>
    /// <param name="str_handset"></param>
    /// <returns></returns>
    public static bool IsHandset(string str_handset)
    {
        return System.Text.RegularExpressions.Regex.IsMatch(str_handset, @"(^1[3456789]\d{9}$)");
    }
    /// <summary>
    /// 验证身份证号
    /// </summary>
    /// <param name="str_idcard"></param>
    /// <returns></returns>
    public static bool IsIDcard(string str_idcard)
    {
        return System.Text.RegularExpressions.Regex.IsMatch(str_idcard, @"(^\d{15}$)|(^\d{18}$)|(^\d{17}(\d|X|x)$)");
    }
    /// <summary>
    /// 验证输入为数字
    /// </summary>
    /// <param name="str_number"></param>
    /// <returns></returns>
    public static bool IsNumber(string str_number)
    {
        return System.Text.RegularExpressions.Regex.IsMatch(str_number, @"^[0-9]*$");
    }
    /// <summary>
    /// 验证邮编
    /// </summary>
    /// <param name="str_postalcode"></param>
    /// <returns></returns>
    public static bool IsPostalcode(string str_postalcode)
    {
        return System.Text.RegularExpressions.Regex.IsMatch(str_postalcode, @"^\d{6}$");
    }
    /// <summary>
    /// 验证邮箱
    /// </summary>
    /// <param name="str_Email"></param>
    /// <returns></returns>
    public static bool IsEmail(string str_Email)
    {
        return System.Text.RegularExpressions.Regex.IsMatch(str_Email, @"^([a - zA - Z0 - 9_ -]) +@([a - zA - Z0 - 9_ -]) + ((.[a-zA - Z0 - 9_ -]{ 2,3}){ 1,2})$");
    }
}