本帖最後由 tonyh 於 2019-3-2 10:19 編輯
- #include<iostream>
- #include<cstdlib>
- using namespace std;
- int main()
- {
- cout<<"☆★☆智能玩具店☆★☆"<<endl<<endl;
- cout<<"[商品價目表]"<<endl;
-
- string a[7]={"遙控器車","飛機模型","足球 ",
- "拼圖 ","玩具槍 ","可愛玩偶","籃球 "};
- int price[7]={450,550,325,200,660,
- 150,380 };
- int p,q,sum=0; //p商品代碼 q商品數量
- for(int i=0;i<7;i++)
- {
- cout<<"("<<i+1<<")"<<a[i]<<"\t"<<price[i]<<"元"<<endl;
- }
- cout<<"(8)結帳"<<endl<<endl;
-
- re:
- cout<<"請輸入商品代碼: ";
- cin>> p;
-
- if(p>=1 && p<=7)
- {
- cout<<"數量: ";
- cin>> q;
- if(q>0) //數量>0
- {
- sum= sum+ price[p-1]*q; //計算總金額
- goto re;
- }else //數量<0
- {
- cout<<"您輸入的數量有誤!!"<<endl;
- goto re;
- }
- }else if(p==8)
- {
- goto checkout;
- }else
- {
- cout<<"您輸入的代碼有錯!!"<<endl;
- goto re;
- }
-
- checkout:
- cout<<"總金額: "<<sum<<"元"<<endl;
-
- system("pause");
- return 0;
- }
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