使用类定义实现隔离储存计算
1.头文件
cpp
#ifndef CLASS_H
#define CLASS_H
#include <iostream>
using namespace std;
class rect
{
private:
int width;
int height;
public:
void init(int width,int height);
void show();
void setw(int w);
void seth(int h);
};
#endif // CLASS_H
2.功能函数
cpp
#include "class.h"
void rect::init(int width,int height)
{
this->width=width;
this->height=height;
}
void rect::show()
{
cout << "面积为:" << width*height << endl;
cout << "周长为:" << 2*(width+height) << endl;
}
void rect::setw(int w)
{
width=w;
}
void rect::seth(int h)
{
height = h;
}
3.主函数
cpp
#include "class.h"
int main()
{
rect s1;
cout << "Hello World!" << endl;
int a,b;
cout << "请输入矩形的宽和长:";
cin >> a >> b;
s1.init(a,b);
s1.show();
cout << "请修改矩形的宽度:" ;
cin >> a ;
s1.setw(a);
cout << "请修改矩形的长度:" ;
cin >> b;
s1.seth(b);
s1.show();
return 0;
}
实现效果