種子論壇 | 高雄市資訊培育協會學員討論區

#include<iostream>
#include<cstdlib>
using namespace std;
int main()
{
restart:
system("cls"); //清空畫面
cout<<"☆★☆智能玩具店☆★☆"<<endl<<endl;
cout<<"[商品價目表]"<<endl;
string a[]={"遙控汽車","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 tmpQty[]={0,0,0,0,0,0,0}; //創一個數量暫存的陣列
int p,q,sum=0,no; //p商品代碼 q商品數量 no 結帳確認
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
tmpQty[p-1] = q; // 選擇的商品數量存起來
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<<endl;
cout<<"[購物清單]"<<endl;
cout<<"------------------------------"<<endl;
for(int i =0;i<7;i++) //印出陣列裡的內容
{
if( tmpQty[i] !=0) //剛才數量不為0 ,才印出來 != 不等於 == 等於
{
cout<<a[i]<<"\t\t"<<price[i]<<"元 * "<<tmpQty[i]<<"個"<<endl;
}
}
cout<<"-------------------------------"<<endl;
cout<<"總金額: "<<sum<<"元"<<endl;
cout<<"1:正確無誤 2:重新選購 "<<endl;
cin>>no;
if(no==1)
{
goto pay; // 結帳區
}else
{
goto restart; //重新開始
}
int payMoney;
pay: //準備結帳
cout<<"請付帳: ";
cin>>payMoney;
if(payMoney <sum) //支付錢小於買的
{
cout<<"您付的錢不夠，還差"<<sum-payMoney<<"元!"<<endl;
goto pay;
}else
{
int tmp;
tmp=payMoney-sum; // 差額存起來，存在tmp變數
cout<<"找您的錢為: "<<tmp<<"元"<<endl;
if(tmp>=500)
{ cout<<"五百元鈔票"<<tmp/500<<"張"<<endl;
tmp=tmp%500;
}
if(tmp>=100)
{ cout<<"一百元鈔票"<<tmp/100<<"張"<<endl;
tmp=tmp%100;
}
if(tmp>=50)
{ cout<<"你五十元"<<tmp/50<<"枚"<<endl;
tmp=tmp%50;
}
if(tmp>=10)
{ cout<<"你十元"<<tmp/10<<"枚"<<endl;
tmp=tmp%10;
}
if(tmp>=1)
{ cout<<"你一元"<<tmp/1<<"枚"<<endl;
tmp=tmp%1;
}
}
system("pause");
return 0;
}

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