#define _CRT_SCUER_WARINGS
#include<iostream>
using namespace std;
class Goods {
public:
Goods()
{
weight = 0;
next = NULL;
cout << "创建了一个重量为" << weight << "货物" << endl;
}
Goods(int w) {
weight = w;
next = NULL;
total_weight += weight;
cout << "创建了一个重量为" << weight <<"货物" <<endl;
cout << "当前厂库量为:" << GetTotal_Weight() << endl;
}
~Goods()
{
cout << "卖出了一箱重量是" << weight << "货物" << endl;
total_weight -= weight;
cout << "当前厂库量为:" << GetTotal_Weight() << endl;
}
static int GetTotal_Weight() {
return total_weight;
}
void Sale(Goods*&head)
{
if (head == NULL)
{
cout << "库中已没有货物" << endl;
}
else
{
Goods*temp = head;
head = head->next;
delete temp;
}
}
void buy(Goods*&head, int w) {
Goods *new_goods = new Goods(w);
if (head == NULL)
{
head = new_goods;
}
else
{
new_goods->next = head;
head = new_goods;
}
}
Goods * next;
private:
int weight;
static int total_weight;
};
int Goods::total_weight = 0;
int main()
{
int flag = 0;
Goods *head = NULL;
do
{
cout << "1 进货" << endl;
cout << "2 出货" << endl;
cout << "3 退出" << endl;
cin >> flag;
switch (flag)
{
case 1:cout << "请输入要创建货物的重量" << endl;
cin >> flag;
head->buy(head, flag);
break;
case 2:head->Sale(head);
break;
case 3:
return 0;
default:
break;
}
} while (true);
//system("pause");
return 0;
}