C#实现DVD借出归还管理系统
用C#写的一个DVD管理器,供大家参考,具体内容如下
(大神勿喷,初学者以借鉴为主)
一共分为三个类分别是:DVD(启动类),XinXi(信息类),GongNeng(功能类)
代码部分(如下):
DVD(启动类):
class DVD { static void Main(string[] args) { GongNeng gongNeng = new GongNeng(); gongNeng.initial(); //初始化 gongNeng.XianShi(); //遍历初始化信息 gongNeng.CaiDan(); //选项菜单 } }
XinXi(信息类):
class XinXi { private string _name;//名称 private int state;//借出状态 private string date;//时间 //属性封装 public string Name { get => _name; set => _name = value; }//名称 public int State { get => state; set => state = value; }//借出状态 public string Date { get => date; set => date = value; }//时间 }
GongNeng(功能类):
因为功能类使用了正则表达式来判断日期格式,所以在使用的时候头部还需加上:
using System.Text.RegularExpressions; // RegularExpressions为正则表达式,Text为文本
class GongNeng { XinXi[] xinxi = new XinXi[10];//对象数组存储数据 //初始化信息 #region 初始化信息 public void initial() { xinxi[0] = new XinXi(); xinxi[0].Name = "罗马假日"; xinxi[0].State = 0; xinxi[0].Date = "2010-7-1"; xinxi[1] = new XinXi(); xinxi[1].Name = "风声鹤唳"; xinxi[1].State = 1; xinxi[1].Date = ""; xinxi[2] = new XinXi(); xinxi[2].Name = "浪漫满屋"; xinxi[2].State = 1; xinxi[2].Date = ""; } #endregion //显示初始化信息 #region 显示初始化信息 public void XianShi() { Console.WriteLine("********初始化信息如下:********"); foreach (XinXi item in xinxi) { if (item != null) { Console.WriteLine(item.Name+"\t"+item.State+"\t"+item.Date); } } Console.WriteLine("********************************"); } #endregion //DVD菜单 #region DVD菜单 public void CaiDan() { Console.WriteLine("------------欢迎使用明宇迷你DVD管理器------------"); Console.WriteLine("1.新增DVD\n2.查看DVD\n3.删除DVD\n4.借出DVD\n5.归还DVD\n6.退出"); Console.WriteLine("-------------------------------------------------"); Console.Write("请输入您的选择:"); int xuanZe = int.Parse(Console.ReadLine()); switch (xuanZe) { case 1: //新增DVD XinZeng(); break; case 2: //查看DVD ChaXun(); break; case 3: //删除DVD ShanChu(); break; case 4: //借出DVD JieChu(); break; case 5: //归还DVD GuiHuan(); break; case 6: //退出 Console.WriteLine("欢迎下次光临!"); break; default: //无选项 Console.WriteLine("对不起,没有该选项!"); break; } } #endregion //输入0,返回 #region 输入0,返回 public void FanHui() { do { Console.WriteLine("输入0,返回:"); string Ling = Console.ReadLine(); if (Ling.Equals("0")) { CaiDan(); } } while (true); } #endregion //新增DVD #region 新增DVD public void XinZeng() { bool flag = true; Console.WriteLine("此处实现新增DVD----->"); Console.WriteLine("请输入DVD名称:"); string dvdName = Console.ReadLine(); for (int i=0; i< xinxi.Length; i++) { if (xinxi[i] == null) { flag = false; xinxi[i] = new XinXi(); xinxi[i].Name = dvdName; xinxi[i].State = 1; xinxi[i].Date = ""; Console.WriteLine("名称为{0}的DVD添加成功!", xinxi[i].Name); break; } } if (flag) { Console.WriteLine("对不起,存储空间已满"); } FanHui();//返回 } #endregion //查询DVD #region 查询DVD public void ChaXun() { Console.WriteLine("此处实现查询DVD----->"); Console.WriteLine("{0,-8}{1,-10}{2,-8}", "名称","状态","时间"); string zhuangTai = String.Empty; foreach (XinXi item in xinxi) { if (item != null) { if (item.State == 0) { zhuangTai = "以借出"; } else if (item.State == 1) { zhuangTai = "未借出"; } Console.WriteLine("{0,-8}{1,-10}{2,-8}",item.Name, zhuangTai, item.Date); } } FanHui();//返回 } #endregion //判断对应下标 #region 判断对应下标 public XinXi Duan(string dvdName) { foreach (XinXi item in xinxi) { if (item != null && item.Name.Equals(dvdName)) { return item; } } return null; } #endregion //删除DVD #region 删除DVD public void ShanChu() { Console.WriteLine("此处实现删除DVD----->"); Console.WriteLine("请输入DVD名称:"); string dvdName = Console.ReadLine(); XinXi renWu = Duan(dvdName); if (renWu == null) { Console.WriteLine("对不起,没有该DVD"); return; } for (int i=0; i< xinxi.Length; i++) { if (renWu == xinxi[i] && xinxi[i].State == 1) { for (int j = i; j < xinxi.Length-1; j++) { xinxi[j] = xinxi[j + 1]; } int nu = xinxi.Length - 1; xinxi[nu] = null; Console.WriteLine("订单删除成功!"); break; } else if (renWu == xinxi[i] && xinxi[i].State == 0) { Console.WriteLine("对不起,订单为以借出状态不能删除!"); break; } } FanHui();//返回 } #endregion //借出DVD #region 借出DVD public void JieChu() { Console.WriteLine("此处实现借出DVD----->"); Console.WriteLine("请输入DVD名称:"); string dvdName = Console.ReadLine(); XinXi renWu = Duan(dvdName); if (renWu == null) { Console.WriteLine("对不起,没有该DVD"); FanHui();//返回 } if (renWu.State == 0) { Console.WriteLine("对不起,该DVD以被人抢先借走了!"); FanHui();//返回 } Console.WriteLine("请输入借出日期(年-月-日):"); string riQi = Console.ReadLine(); bool flag = Money(riQi); if (!flag) { Console.WriteLine("对不起,您输入的日期不正确!"); FanHui();//返回 } else { renWu.State = 0; renWu.Date = riQi; Console.WriteLine("借出DVD成功!"); } FanHui();//返回 } #endregion //判断借出日期格式 #region 判断借出日期格式 public bool Money(string riQi) { string monval = @"^\d{4}-\d{1,2}-\d{1,2}$"; return Regex.IsMatch(riQi, monval); } #endregion //归还DVD #region 归还DVD public void GuiHuan() { Console.WriteLine("此处实现归还DVD----->"); Console.WriteLine("请输入DVD名称:"); string dvdName = Console.ReadLine(); XinXi renWu = Duan(dvdName); if (renWu == null) { Console.WriteLine("对不起,没有该DVD"); FanHui();//返回 } if (renWu.State == 1) { Console.WriteLine("对不起,该DVD还没有借出不可归还!"); FanHui();//返回 } Console.WriteLine("请输入归还日期(年-月-日):"); string riQi = Console.ReadLine(); bool flag = Money(riQi); if (!flag) { Console.WriteLine("对不起,您输入的日期不正确!"); FanHui();//返回 } else { string jieChu = renWu.Date; if (String.Compare(jieChu, riQi) < 0) { //字符串转换为日期格式 DateTime dat1 = Convert.ToDateTime(jieChu);//借出 DateTime dat2 = Convert.ToDateTime(riQi);//日期 TimeSpan span = dat2.Subtract(dat1); //求借出与归还之间的差值 int cha = span.Days + 1; renWu.State = 1; renWu.Date = ""; Console.WriteLine("\n归还《{0}》成功!", renWu.Name); Console.WriteLine("借出日期为:{0}", dat1); Console.WriteLine("归还日期为:{0}", dat2); Console.WriteLine("应付租金为:{0}",cha); } else { Console.WriteLine("对不起,归还日期不能小于借出日期!"); FanHui();//返回 } } FanHui();//返回 } #endregion }
代码展示完毕!
以上就是本文的全部内容,希望对大家的学习有所帮助,也希望大家多多支持我们。
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