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 }
第二张代码
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 }
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)
{
}
}
}