實(shí)驗(yàn)3

驗(yàn)證性實(shí)驗(yàn)部分

在面向?qū)ο蟪绦蛟O(shè)計(jì)中，程序模塊是由類構(gòu)成的。類是對(duì)問(wèn)題的抽象描述，在類這種抽象機(jī)制中的一個(gè)特定實(shí)體即為對(duì)象。而利用特定的值去構(gòu)造對(duì)象，將對(duì)象初始化為特定狀態(tài)即為構(gòu)造函數(shù)，使用已經(jīng)存在的對(duì)象去初始化同類的新對(duì)象即為復(fù)制構(gòu)造函數(shù)，析構(gòu)函數(shù)則是用來(lái)完成生存期即將結(jié)束的對(duì)象在被刪除前的一些清理工作。

編輯實(shí)驗(yàn)部分

1

#include<iostream>
using namespace std;
class Rectangle{
public:
    Rectangle(float l,float w);
    Rectangle(Rectangle &r);
    float area();
    ~Rectangle(){}    
private:
    float length,width;    
};
Rectangle::Rectangle(float l,float w){
    length=l;width=w;
}
Rectangle::Rectangle(Rectangle &r){
    length=r.length;
    width=r.width;
}
float Rectangle::area(){
    return length*width;
}
int main(){
    float length,width;
    cout<<"Enter the length and width of the rectangle:";
    cin>>length>>width;
    Rectangle s(length,width);
    float areaofrectangle=s.area();
    cout<<"The area of the rectangle is:"<<areaofrectangle<<endl;
    return 0;
}

2

#include<iostream>
using namespace std;
class Complex{
public:
Complex(double a,double b);
Complex(double a);
Complex(Complex &s);
void add(Complex &c);
void show();
~Complex(){}
private:
double real,imaginary;
};
Complex::Complex(double a,double b){
real=a;
imaginary=b;
}
Complex::Complex(double a){
real=a;
imaginary=0;
}
void Complex::add(Complex &c){
real=real+c.real;
imaginary=imaginary+c.imaginary;
}
void Complex::show(){
cout<<real<<"+"<<imaginary<<"i"; 
}
Complex::Complex(Complex &s){
real=s.real;
imaginary=s.imaginary;
cout<<"Calling the copy constructor"<<endl;
}
int main(){
Complex c1(3,5);
Complex c2(4.5);
c1.add(c2);
c1.show();
return 0;
}

實(shí)驗(yàn)總結(jié)與體會(huì)

學(xué)好計(jì)算機(jī)語(yǔ)言需要讀懂書本，多動(dòng)手

posted @ 2018-04-08 18:02 群藝術(shù)啊閱讀(137) 評(píng)論(5) 收藏舉報(bào)

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