第一章魔兽窗口

开始显示第一个窗体

用户直接点登陆的话就会提示用户名不能为空密码不能为空

没有账号的话只能先注册，点击蓝色摁钮进入下一个窗体

 

 这里有判断是否为空，注册成功后利用窗体传值，并且打开第一个窗口

把注册的用户名和密码写上去就可以的登陆到这个了

 

 窗口一代码：

 1 using System;2 using System.Collections.Generic;3 using System.ComponentModel;4 using System.Data;5 using System.Drawing;6 using System.Linq; 7 using System.Text; 8 using System.Threading.Tasks; 9 using System.Windows.Forms; 10 11 namespace Loging 12 { 13 public partial class Form2 : Form 14  { 15 public string mile; 16 public string pwd; 17 public Form2() 18  { 19  InitializeComponent(); 20  } 21 22 private void Form2_Load(object sender, EventArgs e) 23  { 24 25  } 26 27 private void button1_Click(object sender, EventArgs e) 28  { 29 Form3 f3=new Form3(); 30 31 if (textBox1.Text == "" || textBox2.Text == "") { 32 MessageBox.Show("用户名或密码不能为空！", "提示"); 33  } 34 else if (textBox1.Text == mile && textBox2.Text ==pwd) 35  { 36 37 Form1 f1=new Form1(); 38  f1.Show(); 39  } 40 41  } 42 43 private void pictureBox1_Click(object sender, EventArgs e) 44  { 45 this.Close(); 46  } 47 48 private void label4_Click(object sender, EventArgs e) 49  { 50 Form3 f3 = new Form3(); 51  f3.Show(); 52  } 53  } 54 }

 

  窗口二代码：

 1 using System;2 using System.Collections.Generic;3 using System.ComponentModel;4 using System.Data;5 using System.Drawing;6 using System.Linq; 7 using System.Text; 8 using System.Threading.Tasks; 9 using System.Windows.Forms; 10 11 namespace Loging 12 { 13 public partial class Form3 : Form 14  { 15 16 public Form3() 17  { 18  InitializeComponent(); 19  } 20 public static string mile; 21 public static string pwd; 22 private void lbls_Click(object sender, EventArgs e) 23  { 24 25  } 26 27 private void lblpwd_Click(object sender, EventArgs e) 28  { 29 30  } 31 32 private void button1_Click(object sender, EventArgs e) 33  { 34 if (textBox1.Text == "") 35  { 36 MessageBox.Show("姓名不能为空", "提示"); 37 38  } 39 else if (textBox3.Text == "") { 40 MessageBox.Show("身份证号不能为空", "提示"); 41  } 42 else if (textBox2.Text == "") { 43 44 MessageBox.Show("邮箱地址不能为空", "提示"); 45  } 46 else if (textBox4.Text == "") 47  { 48 MessageBox.Show("密码不能为空", " 提示"); 49  } 50 else if (textBox5.Text == "") { 51 MessageBox.Show("请再次输入邮箱", "提示"); 52  } 53 else if (textBox6.Text == "") 54  { 55 MessageBox.Show("请再次输入密码", "提示"); 56  } 57 else { 58 59 MessageBox.Show("注册成功", "提示"); 60 61 Form2 f2 = new Form2(); 62 f2.mile = textBox2.Text; 63 f2.pwd = textBox4.Text; 64  f2.Show(); 65  } 66  } 67 68 private void button2_Click(object sender, EventArgs e) 69  { 70 this.Close(); 71  } 72 73 private void Form3_Load(object sender, EventArgs e) 74  { 75 76  } 77 78  } 79 }

窗口三代码：

using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Linq; using System.Text; using System.Threading.Tasks; using System.Windows.Forms; namespace Loging { public partial class Form1 : Form { public Form1() { InitializeComponent(); } private void Form1_Load(object sender, EventArgs e) { } } }