C#做注册界面 验证

用C#语言制作winform窗口程序，实现注册窗口验证的功能

using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Linq;
using System.Text;
using System.Windows.Forms;
using System.Text.Regularexpressions;

namespace WindowsFormsApplication1
{
    public partial class Form1 : Form
    {
        public Form1（）
        {
            InitializeComponent（）;
        }
        public bool a  b  c  d  f ;
        private void textBox1_TextChanged（object sender EventArgs e）
        {
            if （this.textBox1.Text == ““）
            {
                this.label8.Visible = true;
                this.label8.Text = “用户名不能为空请输入用户名！“; a = false;
                
            }
            else
            {
                this.label8.Visible = true;
                this.label8.Text = “输入正确“; a = true;
            }
        }

        private void textBox2_TextChanged（object sender EventArgs e）
        {

            if （（Regex.IsMatch（this.textBox2.Text “[0-9][A-Za-z]“） || Regex.IsMatch（this.textBox2.Text “[A-Za-z][0-9]“）） && （this.textBox2.Text.Length > 6））
            {
                b = true;
                if （（this.textBox2.Text.Length > 6） && （this.textBox2.Text.Length < 10））
                {
                    this.label6.Text = “密码强度低级“; 
                }
                else 
                {
                    this.label6.Text=“密码强度高级“;
                }    
            }
            else
            {
                this.label6.Text = “长度要>=6，必须含有数字和字母“;
                b = false;
            }
        }

        private void textBox3_TextChanged（object sender EventArgs e）
        {
            if （this.textBox3.Text == ““）
            {
                this.label9.Text = “错误：不能为空“; c = false;
            }

            else if （this.textBox2.Text == this.textBox3.Text）
            {
                this.label9.Text = “正确“; c = true;
            }
            else
            {
                this.label9.Text = “错误：两次输入的密码不一致“; c = false;
            }
        }

        private void textBox4_TextChanged（object sender EventArgs e）
        {
            if （Regex.IsMatch（this.textBox4.Text “[A-Za-z0-9][@][A-Za-z0-9]+[.][A-Za-z0-9]“））
            {
                this.label10.Text = “输入正确“; d = true;
            }
            else
            {
                this.label10.Text = “非法邮箱“; d = false;
            }
        }

        private void textBox5_TextChanged（object sender EventArgs e）
        {
            if （Regex.IsMatch（this.textBox5.Text @“^（（（（1[6-9]|[2-9]\d）\d{2}）-（0?[13578]|1[02]）-（0?[1-9]|[12]\d|3[01]））|（（（1[6-9]|[2-9]\d）\d{2}）-（0?[13456789]|1[012]）-（0?[1-9]|[12]\d|30））|（（（1[6-9]|[2-9]\d）\d{2}）-0?2-（0?[1-9]|1\d|2[0-8]））|（（（1[6-9]|[2-9]\d）（0[48]|[2468][048]|[13579][26]）|（（16|[2468][048]|[3579][26]）00））-0?2-29-））$“））
            {
                this.label7.Text = “输入正确“; f = true;
            }
        

 属性            大小     日期    时间   名称
----------- ---------  ---------- -----  ----

     文件      13312  2011-09-13 19:24  注册界面\WindowsFormsApplication1\bin\Debug\WindowsFormsApplication1.exe

     文件      28160  2011-09-13 19:24  注册界面\WindowsFormsApplication1\bin\Debug\WindowsFormsApplication1.pdb

     文件      11600  2011-09-13 18:14  注册界面\WindowsFormsApplication1\bin\Debug\WindowsFormsApplication1.vshost.exe

     文件        490  2010-03-17 22:39  注册界面\WindowsFormsApplication1\bin\Debug\WindowsFormsApplication1.vshost.exe.manifest

     文件       3680  2011-09-13 19:27  注册界面\WindowsFormsApplication1\Form1.cs

     文件      10811  2011-09-07 21:23  注册界面\WindowsFormsApplication1\Form1.Designer.cs

     文件       5817  2011-09-07 21:23  注册界面\WindowsFormsApplication1\Form1.resx

     文件       4440  2011-09-06 20:49  注册界面\WindowsFormsApplication1\obj\x86\Debug\DesignTimeResolveAssemblyReferences.cache

     文件       6271  2011-09-13 19:24  注册界面\WindowsFormsApplication1\obj\x86\Debug\DesignTimeResolveAssemblyReferencesInput.cache

     文件        284  2011-09-07 21:23  注册界面\WindowsFormsApplication1\obj\x86\Debug\GenerateResource.read.1.tlog

     文件        734  2011-09-07 21:23  注册界面\WindowsFormsApplication1\obj\x86\Debug\GenerateResource.write.1.tlog

     文件       7897  2011-09-06 21:06  注册界面\WindowsFormsApplication1\obj\x86\Debug\ResolveAssemblyReference.cache

     文件        952  2011-09-13 19:10  注册界面\WindowsFormsApplication1\obj\x86\Debug\WindowsFormsApplication1.csproj.FileListAbsolute.txt

     文件      13312  2011-09-13 19:24  注册界面\WindowsFormsApplication1\obj\x86\Debug\WindowsFormsApplication1.exe

     文件        180  2011-09-07 21:23  注册界面\WindowsFormsApplication1\obj\x86\Debug\WindowsFormsApplication1.Form1.resources

     文件      28160  2011-09-13 19:24  注册界面\WindowsFormsApplication1\obj\x86\Debug\WindowsFormsApplication1.pdb

     文件        180  2011-09-06 08:28  注册界面\WindowsFormsApplication1\obj\x86\Debug\WindowsFormsApplication1.Properties.Resources.resources

     文件        505  2011-09-06 08:09  注册界面\WindowsFormsApplication1\Program.cs

     文件       1380  2011-09-06 08:09  注册界面\WindowsFormsApplication1\Properties\AssemblyInfo.cs

     文件       2898  2011-09-06 08:09  注册界面\WindowsFormsApplication1\Properties\Resources.Designer.cs

     文件       5612  2011-09-06 08:09  注册界面\WindowsFormsApplication1\Properties\Resources.resx

     文件       1109  2011-09-06 08:09  注册界面\WindowsFormsApplication1\Properties\Settings.Designer.cs

     文件        249  2011-09-06 08:09  注册界面\WindowsFormsApplication1\Properties\Settings.settings

     文件       3707  2011-09-06 08:28  注册界面\WindowsFormsApplication1\WindowsFormsApplication1.csproj

     文件        914  2011-09-06 08:09  注册界面\注册界面.sln

    ..A..H.     19968  2011-09-13 19:27  注册界面\注册界面.suo

     目录          0  2011-09-06 08:09  注册界面\WindowsFormsApplication1\obj\x86\Debug\TempPE

     目录          0  2011-09-13 22:01  注册界面\WindowsFormsApplication1\obj\x86\Debug

     目录          0  2011-09-13 22:01  注册界面\WindowsFormsApplication1\bin\Debug

     目录          0  2011-09-13 22:01  注册界面\WindowsFormsApplication1\obj\x86

............此处省略8个文件信息