小总结：在汽车租赁系统中用到了类的方法，构造函数，值类型，和引用类型
使用集合储存数据，并能使用封装，继承，多态创建和操作类
1.租车。。显示系统中所有可出租的汽车，选中要出租的汽车，输入租用人 以出租汽车
代码如下：
1 public Dictionary<string, Vehicle> vehicles;//可租的车的集合保存
2 public Dictionary<string, Vehicle> renttVehicles;//租出的车的集合保存
3 private void Form1_Load(object sender, EventArgs e)
4 {
5 //将数据加载到集合中
6 vehiclee();
7 //默认载重量文本框不可用
8 this.txtzai.ReadOnly = true;
9 }
10 //构造出两辆小汽车，两辆卡车
11 public void vehiclee()
12 {
13 //实例化未出租字典类型的集合
14 vehicles = new Dictionary<string, Vehicle>();
15 Car dd = new Car("粉色", 99999, "京P1111", "捷豹TK07", 1);
16 Truck ds = new Truck("蓝色", 150, "豫C6644", "长江卡货", 2, 40);
17 vehicles.Add(dd.LicenseNo, dd);
18 vehicles.Add(ds.LicenseNo, ds);
19 //实例化已出租字典类型的集合
20 renttVehicles = new Dictionary<string, Vehicle>();
21 //出租出去的车
22 Car car= new Car("白色", 240, "京PC9K11", "奥迪A8", 3);
23 Truck truck= new Truck("黑色", 582, "京AP6666", "擎天柱", 5, 30);
24 renttVehicles.Add(car.LicenseNo, car);
25 renttVehicles.Add(truck.LicenseNo, truck);
26 car.RentUser = this.txtname.Text;
27
28 }
29 public void PrintVehicles(Dictionary<string, Vehicle> rnotrent, ListView lvshow)
30 {
31 lvshow.Items.Clear();
32 foreach (Vehicle item in rnotrent.Values)
33 {
34 ListViewItem lvitem = new ListViewItem(item.LicenseNo);
35 if (item is Car)
36 {
37 lvitem.SubItems.Add(item.Name);
38 lvitem.SubItems.Add(item.Color.ToString());
39 lvitem.SubItems.Add(item.YearsOfService.ToString());
40 lvitem.SubItems.Add(item.DailyRent.ToString());
41
42 }
43 if (item is Truck)
44 {
45 lvitem.SubItems.Add(item.Name);
46 lvitem.SubItems.Add(item.Color.ToString());
47 lvitem.SubItems.Add(item.YearsOfService.ToString());
48 lvitem.SubItems.Add(item.DailyRent.ToString());
49 lvitem.SubItems.Add(((Truck)item).Load.ToString());
50 }
51 lvshow.Items.Add(lvitem);
52 }
53 } 
54 //租车
55 private void button2_Click(object sender, EventArgs e)
56 {
57 if (txtname.Text=="")
58 {
59 MessageBox.Show("请您输入租用者的姓名再来租用！哦");
60 return;
61 }
62 //从可租车辆集合中移除车辆A
63 //将A添加到已租车辆集合中
64 if (listView1.SelectedItems.Count>0)
65 {
66 string number = listView1.SelectedItems[0].Text;
67 Vehicle ve = vehicles[number];
68 vehicles.Remove(number);
69 PrintVehicles(vehicles, listView1);//重新绑定 ListView
70 renttVehicles.Add(number, ve);
71 MessageBox.Show("已出租。", "提示！", MessageBoxButtons.OK, MessageBoxIcon.Information);
72 }
73 }
74 //刷新
75 private void button1_Click(object sender, EventArgs e)
76 {
77 PrintVehicles(vehicles, listView1);
78 }
54 //租车
55 private void button2_Click(object sender, EventArgs e)
56 {
57 if (txtname.Text=="")
58 {
59 MessageBox.Show("请您输入租用者的姓名再来租用！哦");
60 return;
61 }
62 //从可租车辆集合中移除车辆A
63 //将A添加到已租车辆集合中
64 if (listView1.SelectedItems.Count>0)
65 {
66 string number = listView1.SelectedItems[0].Text;
67 Vehicle ve = vehicles[number];
68 vehicles.Remove(number);
69 PrintVehicles(vehicles, listView1);//重新绑定 ListView
70 renttVehicles.Add(number, ve);
71 MessageBox.Show("已出租。", "提示！", MessageBoxButtons.OK, MessageBoxIcon.Information);
72 }
73 }
74 //刷新
75 private void button1_Click(object sender, EventArgs e)
76 {
77 PrintVehicles(vehicles, listView1);
78 }1 //关闭窗体
2 private void button6_Click(object sender, EventArgs e)
3 {
4 this.Close();
5 }
2.还车。在还车列表中选择汽车信息，输入出租天数，计算租金
//结算
private void button3_Click(object sender, EventArgs e)
{
if (textBox2.Text==string.Empty)
{
MessageBox.Show("请输入租出时间！");
return;
}
//01.将车A从已租集合中移除 //02,将车A加入到可租车辆中
string number = listView2.SelectedItems[0].Text;
Vehicle ve = renttVehicles[number];
renttVehicles.Remove(number);
PrintVehicles(renttVehicles, listView2);//重新绑定 ListView
vehicles.Add(number, ve);
ve.RentDate = Convert.ToInt32(textBox2.Text);
double money = 0;
money = ve.CalcPrice();
MessageBox.Show("您需要支付"+money+"元");
}
//刷新
private void button4_Click(object sender, EventArgs e)
{
PrintVehicles(renttVehicles, listView2);
}
3.新手入库。需要录入汽车的车牌号，车型，颜色使用时间和每日租金。如果是卡车还要录入卡车的载重，
1 //入库
2 private void button5_Click(object sender, EventArgs e)
3 {
4 if (txthao.Text == string.Empty || txtxing.Text == string.Empty || cmdse.Text == string.Empty || txtshijan.Text == string.Empty
5 || txtmei.Text == string.Empty)
6 {
7 MessageBox.Show("请您都填写完整在入库！");
8 }
9 else
10 {
11 string linno = txthao.Text;
12 string xing = txtxing.Text;
13 string color = cmdse.Text;
14 int time = Convert.ToInt32(txtshijan.Text);
15 double zu = Convert.ToDouble(txtmei.Text);
16 if (radioButton1.Checked)
17 {
18 Car dd = new Car(color, zu, linno, xing, time);
19 vehicles.Add(linno, dd);
20 }
21 if (radioButton2.Checked)
22 {
23
24 int load = Convert.ToInt32(txtzai.Text);
25 Truck ds = new Truck(color, zu, linno, xing, time, load);
26 vehicles.Add(linno, ds);
27 }
28 MessageBox.Show("添加成功@！");
29 }
30 }
31 //切换到汽车载重量变成不可选用
32 private void radioButton1_CheckedChanged(object sender, EventArgs e)
33 {
34 this.txtzai.ReadOnly = true;
35 }
36 //切换到卡车添加清空一下所有的文本框
37 private void radioButton2_CheckedChanged(object sender, EventArgs e)
38 {
39 this.txthao.Text = string.Empty;
40 this.txtmei.Text = string.Empty;
41 this.txtname.Text = string.Empty;
42 this.txtshijan.Text = string.Empty;
43 this.txtxing.Text = string.Empty;
44 this.txtzai.Text = string.Empty;
45 this.txtzai.ReadOnly = false;
46 }
时间： 2024-11-05 14:38:36