//王婆賣瓜原程序
#include <iostream.h>
//水果類的聲明及實(shí)現(xiàn)
class fruit
{
	static int Tnumber,Rnumber;//靜態(tài)數(shù)據(jù)成員
	static double Weight;
public:
	void totalweight(double weig)//重量
	{
		Weight+=weig;
		cout<<"至今所賣的總重量是："<<Weight<<endl;
	}
	void totalnumber(int num)//賣的數(shù)量
	{
		Tnumber+=num;
		cout<<"至今所賣的總個(gè)數(shù)是："<<Tnumber<<endl;
	}
	void returnnumber(int num)//退的數(shù)量
	{
		Rnumber+=num;
		cout<<"至今所退的個(gè)數(shù)是："<<Rnumber<<endl;
	}
};

int fruit::Tnumber=0;//靜態(tài)數(shù)據(jù)成員初始化
int fruit::Rnumber=0;
double fruit::Weight=0;

void main()
{
	fruit Xigua;
	char Input;
	int Snumber,Renumber;
	double weight;
	cout<<"Sell or Return:"<<endl;
	cin>>Input;
	while (Input=='s' || Input=='r')//給用戶提供很好的需求  利用循環(huán)來實(shí)現(xiàn)
	{
		if(Input=='s')
		{
			cout<<"Input sellnumber:"<<endl;
			cin>>Snumber;
			cout<<"Input weight:"<<endl;
			cin>>weight;
			Xigua.totalnumber(Snumber);
			Xigua.totalweight(weight);
			Xigua.returnnumber(0);
            cout<<"Sell or Return:"<<endl;
			cin>>Input;
		}
		else
		{
			cout<<"input Return number"<<endl;
			cin>>Renumber;
			Xigua.returnnumber(Renumber);
			Xigua.totalnumber(0);
			Xigua.totalweight(0);
			cout<<"Sell or Return:"<<endl;
			cin>>Input;
		}

	}
}