深入.NET平台和C#编程.租车系统

-------------------------------------------------Vehicle类-------------------------------------------------

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;

namespace Qichechuzxt
{
    public abstract class Vehicle
    {
        //颜色
        public string Color { get; set; }

        //日租金
        public double DailyRent { get; set; }

        //车牌号
        public string LicenseNO { get; set; }

        //车名称
        public string Name { get; set; }

        //时间
        public int RentDate { get; set; }

        //使用人
        public string RentUser { get; set; }

        //使用年限
        public int YearsOfService { get; set; }

        //构造函数
        public Vehicle(string color, double dailyrent, string licenseNO, string name, int rentDate, string rentUser, int yearsOfService)
        {
            this.Color = color;
            this.DailyRent = dailyrent;
            this.LicenseNO = licenseNO;
            this.Name = name;
            this.RentDate = rentDate;
            this.RentUser = rentUser;
            this.YearsOfService = yearsOfService;
        }

        //方法重写
        public Vehicle() { }

        //执行
        public abstract double CalcPrice();
    }
}

-------------------------------------------------Truck类--------------------------------------------------

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;

namespace Qichechuzxt
{
    public class Truck : Vehicle
    {
        //载重
        public int Load { get; set; }

        //构造函数
        public Truck(string color, double dailyrent, string licenseNO, string name, int rentDate, string rentUser, int yearsOfService, int load)
            : base(color, dailyrent, licenseNO, name, rentDate, rentUser, yearsOfService)
        {
            this.Load = load;
        }

        //计算价格
        public override double CalcPrice()
        {
            double totalPrice = 0;
            totalPrice = this.DailyRent * this.RentDate;
            return totalPrice;
        }
    }
}

-------------------------------------------------Car类----------------------------------------------------

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;

namespace Qichechuzxt
{
    public class Car : Vehicle
    {
        //构造函数
        public Car(string color, double dailyrent, string licenseNO, string name, int rentDate, string rentUser, int yearsOfService)
            : base(color, dailyrent, licenseNO, name, rentDate, rentUser, yearsOfService)
        {

        }

        //计算价格
        public override double CalcPrice()
        {
            double totalPrice = 0;
            totalPrice = this.DailyRent * this.RentDate;
            return totalPrice;
        }
    }
}

-------------------------------------------------formChuztx主窗体---------------------------------------

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 Qichechuzxt
{
    public partial class formChuztx : Form
    {
        public formChuztx()
        {
            InitializeComponent();
        }
        /// <summary>
        /// 可租车的集合
        /// </summary>
        Dictionary<string , Vehicle> dy = new Dictionary<string,Vehicle>();

        /// <summary>
        /// 已租车的集合
        /// </summary>
        Dictionary<string , Vehicle> doy = new Dictionary<string,Vehicle>();

        /// <summary>
        /// 窗口加载
        /// </summary>
        /// <param name="sender"></param>
        /// <param name="e"></param>
        private void formChuztx_Load(object sender, EventArgs e)
        {
            Init();
            cmbys.Text = "请选择";
            cmbys.Items.Add("白色");
            cmbys.Items.Add("黑色");
            cmbys.Items.Add("红色");
            cmbys.Items.Add("银白色");
        }

        /// <summary>
        /// 初始化租车
        /// </summary>
        public void Init()
        {
            Car c = new Car("白色", 600, "京A666666", "兰博基尼", 3, "ss", 20);
            dy.Add(c.LicenseNO, c);

            Car car = new Car("红色", 500, "湘A999999", "法拉利", 3, "ss", 10);
            dy.Add(car.LicenseNO, car);

            Truck t = new Truck("黑色", 300, "粤A333333", "东风", 3, "ss", 30,2000);
            doy.Add(t.LicenseNO, t);

            Truck tk = new Truck("蓝色", 300, "粤A888888", "东风", 3, "ss", 10, 1000);
            doy.Add(tk.LicenseNO, tk);
        }

        /// <summary>
        /// listView1绑定数据
        /// </summary>
        /// 
        public void show()
        {
            listView1.Items.Clear();
            foreach (var item in dy)
            {
                ListViewItem lvi = new ListViewItem(item.Key);
                lvi.SubItems.Add(item.Value.Name);
                lvi.SubItems.Add(item.Value.Color);
                lvi.SubItems.Add(item.Value.RentDate.ToString());
                lvi.SubItems.Add(item.Value.DailyRent.ToString());

                if (item.Value is Truck)
                {
                    lvi.SubItems.Add(((item.Value) as Truck).Load.ToString());
                }
                 else
                {
                    lvi.SubItems.Add("无");
                }
                listView1.Items.Add(lvi);
            }
        }

        /// <summary>
        /// listView2绑定数据
        /// </summary>
        /// 
        public void show2()
        {
            listView2.Items.Clear();
            foreach (var item in doy)
            {
                ListViewItem lvi2 = new ListViewItem(item.Key);
                lvi2.SubItems.Add(item.Value.Name);
                lvi2.SubItems.Add(item.Value.Color);
                lvi2.SubItems.Add(item.Value.RentDate.ToString());
                lvi2.SubItems.Add(item.Value.DailyRent.ToString());

                if (item.Value is Truck)
                {
                    lvi2.SubItems.Add(((item.Value) as Truck).Load.ToString());
                }
                 else
                {
                    lvi2.SubItems.Add("无");
                }
                listView2.Items.Add(lvi2);
            }
        }

        /// <summary>
        /// 刷新
        /// </summary>
        /// <param name="sender"></param>
        /// <param name="e"></param>
        private void button1_Click(object sender, EventArgs e)
        {
            show();
        }

        /// <summary>
        /// 退出
        /// </summary>
        /// <param name="sender"></param>
        /// <param name="e"></param>
        private void button3_Click(object sender, EventArgs e)
        {
            this.Close();
        }

        /// <summary>
        /// 租车
        /// </summary>
        /// <param name="sender"></param>
        /// <param name="e"></param>
        private void button2_Click(object sender, EventArgs e)
        {
            if (string.IsNullOrEmpty(txtName.Text.Trim()))
            {
                MessageBox.Show("请填写租车姓名", "提示", MessageBoxButtons.OK, MessageBoxIcon.Asterisk);
            }
            else 
            {
                if (listView1.SelectedItems.Count < 0)
                {
                    MessageBox.Show("请选择租车", "提示", MessageBoxButtons.OK, MessageBoxIcon.Asterisk);
                }
                else
                {
                    string key = listView1.SelectedItems[0].Text;
                    doy.Add(dy[key].LicenseNO, dy[key]);
                    if (dy.ContainsKey(key))
                    {
                        dy.Remove(key);
                        show();
                    }
                }
            } 
        }

        /// <summary>
        /// 刷新
        /// </summary>
        /// <param name="sender"></param>
        /// <param name="e"></param>
        private void button5_Click(object sender, EventArgs e)
        {
            show2();
        }

        /// <summary>
        /// 结算
        /// </summary>
        /// <param name="sender"></param>
        /// <param name="e"></param>
        private void button4_Click(object sender, EventArgs e)
        {
            if (string.IsNullOrEmpty(txttshu.Text.Trim()))
            {
                MessageBox.Show("请输入租车天数","提示",MessageBoxButtons.OK,MessageBoxIcon.Asterisk);  
            }
            else
            {
                if (listView2.SelectedItems.Count < 0)
                {
                    MessageBox.Show("请选择还车", "提示", MessageBoxButtons.OK, MessageBoxIcon.Asterisk);
                }
                else
                {
                    string key = listView2.SelectedItems[0].Text;
                    doy[key].RentDate = int.Parse(this.txttshu.Text);
                    double a = doy[key].DailyRent;
                    double totalPrice = doy[key].CalcPrice();
                    string msg = string.Format("您的总价是：" + totalPrice.ToString());
                    MessageBox.Show(msg, "提示！", MessageBoxButtons.OK, MessageBoxIcon.Information);
                    dy.Add(doy[key].LicenseNO, doy[key]);
                    if (doy.ContainsKey(key))
                    {
                        doy.Remove(key);
                        this.show2();
                    }  
                }
            }
        }

        /// <summary>
        /// 入库
        /// </summary>
        /// <param name="sender"></param>
        /// <param name="e"></param>
        private void button6_Click(object sender, EventArgs e)
        {
            if (string.IsNullOrEmpty(txtchep.Text.Trim()) || string.IsNullOrEmpty(txtchex.Text.Trim())
                || string.IsNullOrEmpty(cmbys.Text.Trim()) || string.IsNullOrEmpty(txtje.Text.Trim()) 
                || string.IsNullOrEmpty(txtsj.Text.Trim()) )
            {
                MessageBox.Show("请完善新车入库信息","提示",MessageBoxButtons.OK,MessageBoxIcon.Information);
            }
            else
            {
                Vehicle vehicle = null;
                if (radioButton1.Checked == true)
                {
                    vehicle = new Car(cmbys.Text, int.Parse(txtje.Text), txtchep.Text, txtchex.Text, 0, "s", int.Parse(txtsj.Text));
                }
                else
                {
                    vehicle = new Truck(cmbys.Text, int.Parse(txtje.Text), txtchep.Text, txtchex.Text, int.Parse(txtsj.Text), txtsj.Text,2,int.Parse(txtzz.Text));
                }
                try
                {
                    dy.Add(vehicle.LicenseNO, vehicle);
                    MessageBox.Show("添加成功");
                }
                catch (Exception)
                {
                    MessageBox.Show("车牌号重复");
                }
            }
        }

        /// <summary>
        /// 轿车
        /// </summary>
        /// <param name="sender"></param>
        /// <param name="e"></param>
        private void radioButton1_CheckedChanged(object sender, EventArgs e)
        {
            txtzz.Enabled = false;
        }

        /// <summary>
        /// 轿车
        /// </summary>
        /// <param name="sender"></param>
        /// <param name="e"></param>
        private void radioButton2_CheckedChanged(object sender, EventArgs e)
        {
            txtzz.Enabled = true;
        }
    }
}

-------------------------------------------------运行结果-------------------------------------------------