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;    


    


                        }    


    


                }    


    


    


    


                


    


        }    


    


}    

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