实验一 熟悉Visual Studio开发环境

本科实验报告

课程名称：C++面向对象程序设计

实验项目：

实验地点：明向校区

专业班级：软件1419 学号：********** 学生姓名：***

指导教师：***

2015年5月10日

cout<<"请输入长方形的边长："<

cin>>m>>n;

cout<<"长方形的面积为："<

cout<<"请输入正方形的边长："<

cin>>m;

cout<<"正方形的面积为："<

system("pause");

return 0;}

double Area(double R)

{

double s;s=pi*R*R;return s;

}

double Area(double a,double b)

{

double s;s=a*b;return s;

}

double Perim(double R)

{

double p;p=2*pi*R;return p;

}

double Perim(double a,double b)

{

double p;p=2*(a+b);return p;

}

运行结果：

cout<<"circle area="<

system("pause");

break;}

case'r':

{ double len,wid;

cout<<"input length and width"<

cin>>len>>wid;

Rectangle r(len,wid);

cout<<"rectangle area="<

system("pause");

break;}

case's':

{ double len;

cout<<"input lengh"<

cin>>len;

Square s(len);

cout<<"square area="<

system("pause");

break;}

default:cout<<"input error!"<

system("pause");

break;

}

getchar();

return 0;

}

运行结果：

using namespace std;

class Complex

{

private:

float Real,Image;

public:

Complex(float r,float i)

{ Real=r;Image=i; }

Complex(Complex &c)

{ Real=c.Real;Image=c.Image; }

Complex()

{ Real=0;Image=0; }

void Display()

{

cout<

}

};

void main()

{

Complex c1(20,40),c2,c3(c1);

c1.Display();

c2.Display();

c3.Display();

system("pause");

}

运行结果：

#include

using namespace std;

class Rectangle

{ public:

Rectangle(float l, float t, float r, float b) :left(l), top(t), right(r), bottom(b) {}

float Diagonal()

{ return sqrt((top - bottom) * (top - bottom) + (left - right) * (left- right)); }

void Show(Rectangle rec)

{ cout << rec.Diagonal()<

~Rectangle(){}

private:

float left;

float top;

float right;

float bottom;

};

int main()

{

Rectangle *re = new Rectangle(10, 10, 20, 20);

re->Show(*re);

delete re;

system("pause");

}

运行结果：