1.cpp

用数据结构实现了数据结构学习中卖衣服的模拟

#include<iostream>
using namespace std;
class sell
{
private:
    static float sum;
    static double discount;
    static int  total;
    static float ave;
	int n;
    float danjia;
public:
    sell()
    {
        cout<<"请输入单价："<<endl;
        cin>>danjia;
        cout<<"请输入销售数量："<<endl;
        cin>>n;
    }
    void count();
    static void average();
    static void display();

    ~sell()
    {}

};

void sell::count()
{
total=total+n;
if(n>10)
sum=sum+(n*danjia)*discount;
else
sum=sum+n*danjia; 
}
void sell::average()
{
ave=sum/total;


}
void sell::display()
{
cout<<"总收入是"<<sum<<endl;
cout<<"平均价格是"<<ave<<endl;
}
double sell::discount=0.98;
float sell::sum=0;
int sell::total=0;
float sell::ave=0;

void main()
{
sell seller[3];
for(int i=0;i<3;i++)
seller[i].count();
sell::average();
sell::display();

}