實(shí)驗(yàn)報(bào)告-第五次作業(yè)

學(xué)生實(shí)驗(yàn)報(bào)告學(xué)生姓名學(xué)號(hào)同組人實(shí)驗(yàn)工程C++□必修□選修□演示性實(shí)驗(yàn)□驗(yàn)證性實(shí)驗(yàn)□操作性實(shí)驗(yàn)□綜合性實(shí)驗(yàn)實(shí)驗(yàn)地點(diǎn)機(jī)房實(shí)驗(yàn)儀器臺(tái)號(hào)25指導(dǎo)教師實(shí)驗(yàn)日期及節(jié)次20231013三四節(jié)一、實(shí)驗(yàn)綜述1、實(shí)驗(yàn)?zāi)康募耙?.GivenaRectangleclass,whichhasWidthandHeightattributesandthefollowingbehaviors:(1)Init():toinitializetheWidthandHeight(2)SetWidth():tosetWidth(3)SetHeight():tosetHeight(4)GetWidth():togetWidth(5)GetHeight():togetHeight(6)Area():tocalculatetheareaoftherectangle(7)DispInfo():toshowtheinformationoftherectanglesuchasWidth,Heightandarea.Pleaseanalyzeanddesigntheclassbasedontheaboverequirements.1.定義一個(gè)長(zhǎng)方形Rectangle類(lèi)，它有寬、高(Width,Height)和一些計(jì)算方法：(1)Init()：設(shè)定寬、高的初始值(2)SetWidth()：設(shè)定寬度(3)SetHeight()：設(shè)定高度(4)GetWidth()：得到寬度(5)GetHeight()：得到高度(6)Area()：計(jì)算長(zhǎng)方形的面積(7)DispInfo()：顯示長(zhǎng)方形的信息(包括寬、高和面積)分析并設(shè)計(jì)：(1)Rectangle類(lèi)中有哪些數(shù)據(jù)成員，應(yīng)定義為公有的還是私有的。(2)Rectangle類(lèi)中有哪些成員函數(shù)，應(yīng)定義為公有的還是私有的。并設(shè)計(jì)編寫(xiě)這些函數(shù)。(3)編寫(xiě)一個(gè)主函數(shù)對(duì)Rectangle類(lèi)實(shí)現(xiàn)調(diào)試。2.DesignaclassCircle,whichcanbeusedtocalculatetheareaandcircumferenceofacircle.Theradiusissetwheninitializinganobject.Pleasegiveamainfunctiontocalltheclass.2.定義一個(gè)Circle類(lèi)，可以計(jì)算圓的面積和圓的周長(zhǎng)。圓的半徑通過(guò)說(shuō)明對(duì)象時(shí)由初始化完成。編寫(xiě)相應(yīng)的調(diào)試用函數(shù)，來(lái)測(cè)試該類(lèi)的正確性。3.DesignaRectangleclasswithtwoattributes,WidthandHeightandtosatisfythefollowingrequirements.Whentheobjectisinitializedbytwoarguments,whichrepresentWidthandHeightrespectively.But,whentheobjectisinitializedbyonlyoneargument,whichmeanstherectangleisasquare.ThereisamemberfunctiontoshowtheareaoftheRectangleintheclass.Pleasealsogiveamainfunctiontocalltheclass.3.定義一個(gè)長(zhǎng)方形Rectangle類(lèi)，它有寬、高(Width,Height)。在說(shuō)明該類(lèi)的對(duì)象時(shí)，假設(shè)給定了兩個(gè)參數(shù)，分別設(shè)為寬和高；假設(shè)只給了一個(gè)參數(shù)，那么寬和高相同〔即正方形〕。同時(shí)編寫(xiě)可以顯示面積的成員函數(shù)。編寫(xiě)相應(yīng)的調(diào)試用函數(shù)，來(lái)測(cè)試該類(lèi)的正確性。2、實(shí)驗(yàn)儀器、設(shè)備或軟件電腦VC6.0二、實(shí)驗(yàn)過(guò)程〔實(shí)驗(yàn)步驟、記錄、數(shù)據(jù)、分析〕第一題：#include<iostream>#include<iomanip>usingnamespacestd;classRectangle{public:voidInit(intx,inty);voidSetwidth(inta);voidSethigh(intb);voiddisplnfo();intGetwidth(){returnx;}intGethigh(){returny;}intarea();private:intx,y;};voidRectangle::Init(inta,intb){x=a;y=b;}voidRectangle::Setwidth(inta){a=x;}voidRectangle::Sethigh(intb){b=y;}intRectangle::area(){returnx*y;}voidRectangle::displnfo(){cout<<"長(zhǎng):"<<x<<'\n'<<"寬:"<<y<<'\n'<<"面積為:"<<area()<<endl;}voidmain(){intx,y;Rectanglep;cin>>x>>y;p.Init(x,y);p.displnfo();}第二題：#include<iostream.h>#include<math.h>classCircle{doubleR;public:voidsetr(doubler){R=r;}doublemianji(doubler){return(r*r*3.1415);}doublezhouchang(doubler){return(2*3.1415*r);}};voidmain(){Circlec;doubleR;cout<<"請(qǐng)輸入R的值："<<endl;cin>>R;c.setr(R);cout<<"面積："<<c.mianji(R)<<"周長(zhǎng)："<<c.zhouchang(R)<<endl;}第三題：#include<iostream>usingnamespacestd;classRectangle{public:floatArea(float,float);//函數(shù)重載floatArea(float);private:floatx,y,Width,Height;};floatRectangle::Area(floatx,floaty){floatArea;Width=x;Height=y;Area=Width*Height;returnArea;}floatRectangle::Area(floatx){floatArea;Width=x;Area=Width*Width;returnArea;}floatmain(){floata,b;cin>>a>>b;Rectangler;if(a!=b)cout<<r.Area(a,b)<<endl;elsecout<<r.Area(a)<<en