c++程序设计实验报告

C++程序设计实验报告#一、实验目的：1、掌握运算符重载的方法。2、掌握使用虚函数实现动态多态性。二、实验内容：1、定义Point类，有坐标x,y两个成员变量；对Point类重载++、运算符，实现对坐标值的改变。#includeviostream>usingnamespacestd;classPoint{public:Point(){}Point(floatafloatb){x=a;y=b;}Pointoperator++(){y++;returnPoint(x,y);}Pointoperator--。{X--；y--;returnPoint(x,y);}voiddisplay。{coutvv"("vvxvv","vvyvv")"vvendl;}private:floatx;floaty;};voidmain(){Pointp(6,9);coutvv"原来点的坐标："；p.display();

p++;coutvv"自加后点的坐标："；p.display();p--;coutvv"再自减后点的坐标：";p.display();=,叵］=,叵］I'"C:\Users\Administrator\L>e5...0--t16n970--t16n97G尸<;”.■标to:桐坐y标坐的血坐的点y的点后an来加自再肝2、定义一个车(vehicle)基类，有Run、Stop等成员函数，由此派生出自行车类(biclcle)、汽车类(motorcar),从bicycle和motorcar派生出摩托车类(motorcycle)，它们都有Run、Stop等成员函数。观察虚函数的作用。#include<iostream>usingnamespacestd;classVehicle{public:voidRun(){coutvv"车启动了"vvendl;}voidStop(){coutvv"车停止了"vvendl;}};classbicycle:publicVehicle{public:voidRun(){coutvv"自行车启动了"vvendl;}voidStop(){coutvv"自行车停止了"vvendl;}};classmotorcar:publicVehicle{public:voidRun()coutvv"汽车启动了"vvendl;}voidStop(){coutvv"汽车停止了"vvendl;}};classmotorcycle:publicbicycle,publicmotorcar{public:voidRun(){coutvv"摩托车启动了"vvendl;}voidStop(){coutvv"摩托车停止了"vvendl;}};voidmain()Vehiclec;bicycleb;motorcarcar;motorcyclem;c・Run();c・Stop();b.Run();b.Stop();car.Run();car.Stop();m・Run();m・Stop();}continuepprjl''C:\UsersVAdmicontinuepprjl''C:\UsersVAdministrator...__5-了了了了血动止了了动止V了止启停an自汽汽pr实验八面向对象综合实验一、实验目的：1、综合运用面向对象编程思想。2、学习设计较复杂的类。二、实验内容：实现一个计算器类,支持加、减、乘、除等基本运算。#includeviostream>usingnamespacestd;classOpera{public:voidget();voidjia(){coutvvavvcvvbvv"="vva+bvvendl;}voidjian(){coutvvavvcvvbvv"="vva■bvvendl;}voidcheng(){coutvvavvcvvbvv"="vva*bvvendl;}voidchu(){coutvvavvcvvbvv"="vva/bvvendl;}charget_c(){returnc;}private:floata;floatb;charc;};voidOpera::get(){coutvv"请输入算式："；cin»a»c»b;}intmain(){while⑴{Operao;o.get();switch(o.get_c()){case'+':o.jia();break;case'-':o・jian();break;case'*':o.cheng();break;case'/':o.chu();break;}