在第六次的基础上：
增加：
1、用代码实现对数据库的增删改查操作，以此来实现用户的注册。
2、新建一个报修表，名字为repair_info，列有用户名、报修类型、报修地点、报修内容，报修日期和时间、用户报修次数等，列名自己起。
3、在报修界面中，当用户点击“报修”按钮时，软件会把用户报修的信息写入数据库中，更新报修次数，同时会清空相应的文本框，软件还要
检查所有文本框是否为空，空的话提示报修失败。
代码实现：
from1:
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.Windows.Forms; 9 using System.Data.SqlClient; 10 11 namespace 登录 12 { 13 public partial class Form1 : Form 14 { 15 public Form1() 16 { 17 InitializeComponent(); 18 } 19 string ConnStr = "Data Source=.;Initial Catalog=repair;Integrated Security=True"; 20 SqlConnection conn = new SqlConnection(); 21 public static string name; 22 private void button1_Click(object sender, EventArgs e) 23 { 24 25 if (textBox1.Text != "" && textBox2.Text != "") 26 { 27 kailu(); 28 29 name = textBox1.Text; 30 string com = "select count(*) from user_info where userName='" + name + "' "; 31 SqlCommand comm = new SqlCommand(com, conn); 32 int a = (int)comm.ExecuteScalar(); 33 if (a == 0) 34 { 35 label3.Text = "用户名不存在！"; 36 textBox1.Clear(); 37 textBox2.Clear(); 38 39 } 40 else 41 { 42 43 string corrStr = "select count(*) from user_info where userName='" + textBox1.Text + "' and passWord='" + textBox2.Text + "'"; 44 SqlCommand con = new SqlCommand(corrStr, conn); 45 int tt = (int)con.ExecuteScalar(); 46 if (tt == 0) 47 { 48 label3.Text = "您输入的密码有错误，请重新输入！"; 49 textBox2.Clear(); 50 } 51 else 52 { 53 54 label3.Text="恭喜你，登录成功了！"; 55 Form2 foa = new Form2(); 56 foa.ShowDialog(); 57 } 58 } 59 60 61 62 } 63 else 64 { 65 MessageBox.Show("请输入用户名和密码！"); 66 } 67 68 69 } 70 private void kailu() 71 { 72 73 74 try 75 { 76 conn = new SqlConnection(ConnStr); 77 conn.Open(); 78 } 79 catch (Exception ex) 80 { 81 82 label3.Text="数据库连接失败" + ex.ToString(); 83 } 84 85 } 86 87 private void button2_Click(object sender, EventArgs e) 88 { 89 Form3 form = new Form3(); 90 form.ShowDialog(); 91 } 92 } 93 }
from2:
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.Windows.Forms; 9 using System.Data.SqlClient; 10 11 namespace 登录 12 { 13 public partial class Form2 : Form 14 { 15 public Form2() 16 { 17 InitializeComponent(); 18 } 19 string ConnStr = "Data Source=.;Initial Catalog=repair;Integrated Security=True"; 20 SqlConnection conn = new SqlConnection(); 21 private void Form2_Load(object sender, EventArgs e) 22 { 23 label1.Text = "欢迎你" + Form1.name; 24 } 25 26 private void button1_Click(object sender, EventArgs e) 27 { 28 conn = new SqlConnection(ConnStr); 29 string updarta = "Update user_info set passWord='" + textBox3.Text.Trim() + "' where userName='" + textBox1.Text.Trim() + "'"; 30 SqlCommand comm = new SqlCommand(updarta, conn); 31 conn.Open(); 32 int a = comm.ExecuteNonQuery(); 33 if (a > 0) 34 { 35 MessageBox.Show("修改成功！"); 36 } 37 else 38 { 39 MessageBox.Show("修改失败！"); 40 } 41 conn.Close(); 42 } 43 44 private void button2_Click(object sender, EventArgs e) 45 { 46 conn = new SqlConnection(ConnStr); 47 string comstr = "insert into repair_info(usernaem,class1,addss,nierong,nowdate,cishu) values('"+textBox2.Text+"','"+textBox4.Text+"','"+textBox5.Text+"','"+textBox6.Text+"','"+textBox7.Text+"','"+textBox8.Text+"')"; 48 SqlCommand comm = new SqlCommand(comstr, conn); 49 conn.Open(); 50 if (textBox2.Text != "") 51 { 52 int a = comm.ExecuteNonQuery(); 53 if (a > 0) 54 { 55 MessageBox.Show("报修成功！"); 56 } 57 else 58 { 59 MessageBox.Show("报修失败！"); 60 } 61 } 62 string commstr = "select usernaem,class1,addss,nierong,nowdate,cishu from repair_info"; 63 SqlDataAdapter das = new SqlDataAdapter(commstr, conn); 64 DataSet ds = new DataSet(); 65 DataTable td = new DataTable(); 66 das.Fill(ds); 67 dataGridView1.DataSource = ds.Tables[0]; 68 conn.Close(); 69 } 70 71 private void button3_Click(object sender, EventArgs e) 72 { 73 conn = new SqlConnection(ConnStr); 74 string updarta = "Update repair_info set cishu='" + textBox8.Text.Trim() + "' where usernaem='" + textBox2.Text.Trim() + "'"; 75 SqlCommand comm = new SqlCommand(updarta, conn); 76 conn.Open(); 77 int a = comm.ExecuteNonQuery(); 78 if (a > 0) 79 { 80 MessageBox.Show("再次报修成功！"); 81 } 82 else 83 { 84 MessageBox.Show("再次报修失败！"); 85 } 86 conn.Close(); 87 } 88 89 private void button4_Click(object sender, EventArgs e) 90 { 91 conn = new SqlConnection(ConnStr); 92 string updarta = "delete form repair_info where usernaem='" + textBox2.Text.Trim() + "'"; 93 SqlCommand comm = new SqlCommand(updarta, conn); 94 conn.Open(); 95 int a = comm.ExecuteNonQuery(); 96 if (a > 0) 97 { 98 MessageBox.Show("完成保修成功！"); 99 } 100 else 101 { 102 MessageBox.Show("完成报修失败！"); 103 } 104 conn.Close(); 105 } 106 107 108 } 109 }
from3:
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.Windows.Forms; 9 using System.Data.SqlClient; 10 11 namespace 登录 12 { 13 public partial class Form3 : Form 14 { 15 public Form3() 16 { 17 InitializeComponent(); 18 } 19 string ConnStr = "Data Source=.;Initial Catalog=repair;Integrated Security=True"; 20 SqlConnection conn = new SqlConnection(); 21 22 private void button1_Click(object sender, EventArgs e) 23 { 24 25 if (textBox1.Text != "" && textBox2.Text != "") 26 { 27 conn = new SqlConnection(ConnStr); 28 string comstr = @"insert into user_info(userName,passWord) values('" + textBox1.Text + "','" + textBox2.Text + "')"; 29 SqlCommand comm = new SqlCommand(comstr, conn); 30 conn.Open(); 31 int a = comm.ExecuteNonQuery(); 32 if (a > 0) 33 { 34 MessageBox.Show("注册成功！"); 35 } 36 else 37 { 38 MessageBox.Show("注册失败！"); 39 } 40 41 } 42 else 43 { 44 if (textBox1.Text != "") 45 { 46 MessageBox.Show("密码不能为空！"); 47 } 48 else 49 { 50 MessageBox.Show("用户名不能为空！"); 51 } 52 } 53 conn.Close(); 54 } 55 56 private void button2_Click(object sender, EventArgs e) 57 { 58 conn = new SqlConnection(ConnStr); 59 string delstr = "delete from user_info where userName='"+textBox1.Text.Trim()+"'"; 60 SqlCommand comm = new SqlCommand(delstr,conn); 61 conn.Open(); 62 int a = comm.ExecuteNonQuery(); 63 if (a > 0) 64 { 65 MessageBox.Show("注销成功！"); 66 } 67 else 68 { 69 MessageBox.Show("注销失败哦！"); 70 } 71 conn.Close(); 72 } 73 74 } 75 }
数据库：
：
代码实现：
PSP消耗：
| psp | Personal Software Process Stages | Time（h） |
| planning | .计划 | 5 |
| .Estimate | .估计这个任务需要多长时间 | 4 |
| Development | .开发 | 40 |
| .Analysis | .需求分析 | 3 |
| .Design Spec | .生成设计文档 | 2 |
| .Design Review | .设计复审 | 4 |
| • Coding Standard | .代码规范 | 2 |
| • Design | .具体设计 | 15 |
| • Coding | .具体编码 | 4 |
| • Code Review | .代码复审 | 3 |
| • Text | .测试 | 3 |
| Reporting | .报告 | 4 |
| • Test Report | .测试报告 | 3 |
| • Size Measurement | .计算工作量 | 0.5 |
| • Postmortem&Process Improvement Plan | .事后总结并提出改进计划 | 4 |
团队总结：
本次团队在上一次的作业中，做了增量，通过团队合作，需要的是交流，只有交流多了，才能进步的多，多动手，在出错中改进，多做，才知道问题所在，在团队里，学会学习，我记得老师说，大学要学会学习的能力，学会查资料；我们团队需要多学习！希望跟上大家的步伐！
工作分配
队长：赵文涛
杨栗：查资料 1分；
娄豪：PSP消耗统计 1分；
李宁：总结 1分；
姚震：测试 1分；
肖雪峰：代码复审 1分；
赵文涛：代码、复查、数据库、思路、界面设计 5分；