邮箱及密码的正则表达式验证（C#）

  刚接触正则表达式，发现其功能竟然如此的“很好很强大”，于是用C#写了一个邮箱的验证，小弟菜菜，如有不足之处敬请指出，同时也希望对刚接触正则表达式的兄弟姐妹有所帮助！

  下面是代码部分：

using System;    
    
using System.Collections.Generic;    
    
using System.ComponentModel;    
    
using System.Data;    
    
using System.Drawing;    
    
using System.Text;    
    
using System.Windows.Forms;    
    
using System.Text.RegularExpressions;    
    
    
    
namespace RegulatorTest    
    
{    
    
         public partial class Form1 : Form    
    
        {    
    
                 public Form1()    
    
                {    
    
                        InitializeComponent();    
    
                }    
    
    
    
                 private void btnTest_Click( object sender, EventArgs e)    
    
                {    
    
                         //验证 E-mail 格式    
    
                         string regexEmail = "\\w{1,}@\\w{1,}\\.\\w{1,}";    
    
                        System.Text.RegularExpressions.RegexOptions options = ((System.Text.RegularExpressions.RegexOptions.IgnorePatternWhitespace    
    
                                | System.Text.RegularExpressions.RegexOptions.Multiline)    
    
                                                | System.Text.RegularExpressions.RegexOptions.IgnoreCase);    
    
                        System.Text.RegularExpressions.Regex regEmail = new System.Text.RegularExpressions.Regex(regexEmail, options);    
    
                         string email = txtEmail.Text;    
    
                            
    
                         if (regEmail.IsMatch(email)) //email 填写符合正则表达式 "\\w{1,}@\\w{1,}\\.\\w{1,}"    
    
                        {    
    
                                MessageBox.Show( "符合正则表达式："+regEmail.ToString()+ "\n邮箱填写成功！");    
    
                        }    
    
                         else {    
    
                                MessageBox.Show( "不符合正则表达式："+regEmail.ToString()+ "\n邮箱格式不正确！");    
    
                                 return;    
    
                        }    
    
    
    
                         //验证密码 由不小于6位不大于15位的字母数字下划线特殊符号组成！    
    
                         string regexPwd = "^.{6,15}___FCKpd___0quot;; //限定开头,须从第一位开始匹配，限定结尾，总位数不得超过15位，否则即使大于15位仍然可以验证通过    
    
                        System.Text.RegularExpressions.Regex regPwd = new System.Text.RegularExpressions.Regex(regexPwd, options);    
    
                         string pwd = txtPwd.Text;    
    
                         if (regPwd.IsMatch(pwd))    
    
                        {    
    
                                MessageBox.Show( "符合正则表达式："+regPwd.ToString()+ "\n密码验证通过！");    
    
                        }    
    
                         else {    
    
                                MessageBox.Show( "不符合正则表达式："+regPwd.ToString()+ "\n密码验证失败！密码应由不小于6位不大于15位的字母数字下划线特殊符号组成！");    
    
                                 return;    
    
                        }    
    
                }    
    
    
    
                
    
        }    
    
}