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나는 커피 한 잔을 계속 판매하려고 노력하고 있으며 사용자 정의 된 기능을 사용해야 만합니다. 첨부 된 코드의 다양한 변형을 시도했지만 아무 것도 작동하지 않는 것 같습니다. 내가 도대체 뭘 잘못하고있는 겁니까? 또한 나는 C++에 대한 신조어이므로 아마추어적인 것처럼 보입니다!사용자 정의 함수를 사용하여 C++에서 어큐뮬레이터를 만드는 방법은 무엇입니까?
#include <iostream>
#include <iomanip>
#include <fstream>
#include <string>
using namespace std;
const int SM_OZ = 8;
const int MD_OZ = 12;
const int LG_OZ = 16;
const double SM_PRICE = 1.19;
const double MD_PRICE = 1.49;
const double LG_PRICE = 1.89;
const double TAX = .0825;
void amtSold(int &smtCup, int &mdtCup, int &lgtCup);
int main()
{
int selection;
int smCup;
int mdCup;
int lgCup;
int smtCup;
int mdtCup;
int lgtCup;
smCup = 0;
mdCup = 0;
lgCup = 0;
do
{
cout << "COFFEE SHOP" << endl;
cout << "1. Sell Coffee" << endl;
cout << "2. Total Number of Cups Sold" << endl;
cout << "3. Total Amount of Coffee Sold" << endl;
cout << "4. Total Amount of Money made" << endl;
cout << "0. Exit" << endl;
cout << "Type a number to continue: ";
cin >> selection;
cout << endl;
//loop through the solutions based on the user's selection
switch (selection)
{
case 1:
cout << "How many small cups of coffee: ";
cin >> smCup;
cout << "How many medium cups of coffee: ";
cin >> mdCup;
cout << "How many large cups of coffee: ";
cin >> lgCup;
system("cls");
cout << fixed << setprecision(2) << endl;
//Sale Coffee Receipt Page
cout << "COFFEE SHOP" << endl;
cout << "SIZE" << setw(21) << "Number" << setw(18) << "Price" << setw(18) << "Total" << endl;
cout << "Small: " << setw(18) << smCup << setw(18) << SM_PRICE << setw(18) << smCup*SM_PRICE << endl;
cout << "Medium: " << setw(17) << mdCup << setw(18) << MD_PRICE << setw(18) << mdCup*MD_PRICE << endl;
cout << "Large: " << setw(18) << lgCup << setw(18) << LG_PRICE << setw(18) << lgCup*LG_PRICE << endl;
cout << "Subtotal: " << setw(51) << (smCup*SM_PRICE)+(mdCup*MD_PRICE)+(lgCup*LG_PRICE) << endl;
cout << "Tax: (8.25%)" << setw(49) << ((smCup*SM_PRICE) + (mdCup*MD_PRICE) + (lgCup*LG_PRICE))*TAX << endl;
cout << "Total: " << setw(54) << ((smCup*SM_PRICE) + (mdCup*MD_PRICE) + (lgCup*LG_PRICE))+(((smCup*SM_PRICE) + (mdCup*MD_PRICE) + (lgCup*LG_PRICE))*TAX) << endl;
cout << endl;
cout << endl;
break;
case 2:
//Total Number of Cups Sold
cout << "REPORT - NUMBER OF COFFEE CUPS SOLD" << endl;
amtSold(smtCup, mdtCup, lgtCup);
cout << "SIZE" << setw(21) << "Number" << endl;
cout << "Small: " << setw(18) << smCup << endl;
cout << "Medium: " << setw(17) << mdCup << endl;
cout << "Large: " << setw(18) << lgCup << endl;
cout << endl;
cout << endl;
break;
case 3:
//Total Amount of Coffee Sold
cout << "REPORT - AMOUNT OF COFFEE SOLD" << endl;
cout << "SIZE" << setw(21) << "Number" << setw(18) << "OZ" << endl;
cout << "Small: " << setw(18) << smCup << setw(18) << smCup*SM_OZ << endl;
cout << "Medium: " << setw(17) << mdCup << setw(18) << mdCup*MD_OZ << endl;
cout << "Large: " << setw(18) << lgCup << setw(18) << lgCup*LG_OZ << endl;
cout << "Total: " << setw(36) << (smCup*SM_OZ) + (mdCup*MD_OZ) + (lgCup*LG_OZ) << endl;
cout << endl;
cout << endl;
break;
case 4:
//Total Amount of Money made
cout << "COFFEE SHOP - REPORT MONEY MADE" << endl;
cout << "SIZE" << setw(21) << "Number" << setw(18) << "Price" << setw(18) << "Total" << endl;
cout << "Small: " << setw(18) << smCup << setw(18) << SM_PRICE << setw(18) << smCup*SM_PRICE << endl;
cout << "Medium: " << setw(17) << mdCup << setw(18) << MD_PRICE << setw(18) << mdCup*MD_PRICE << endl;
cout << "Large: " << setw(18) << lgCup << setw(18) << LG_PRICE << setw(18) << lgCup*LG_PRICE << endl;
cout << "Subtotal: " << setw(51) << (smCup*SM_PRICE) + (mdCup*MD_PRICE) + (lgCup*LG_PRICE) << endl;
cout << "Tax: (8.25%)" << setw(49) << ((smCup*SM_PRICE) + (mdCup*MD_PRICE) + (lgCup*LG_PRICE))*TAX << endl;
cout << "Total: " << setw(54) << ((smCup*SM_PRICE) + (mdCup*MD_PRICE) + (lgCup*LG_PRICE)) + (((smCup*SM_PRICE) + (mdCup*MD_PRICE) + (lgCup*LG_PRICE))*TAX) << endl;
cout << endl;
cout << endl;
break;
case 0:
system("cls");
break;
default:
//notify the user that an invalid selection has been inputted
cout << "You have made an invalid selection. Please choose a number from the list." << endl;
cout << endl;
}
} while (selection != 0);
system("pause");
return 0;
}
void amtSold(int &smtCup, int &mdtCup, int &lgtCup)
{
int smCup;
int mdCup;
int lgCup;
smCup = 0;
mdCup = 0;
lgCup = 0;
smtCup += smCup;
mdtCup += mdCup;
lgtCup += lgCup;
}
글쎄, 현재 코드는 예를 들어. 'smCup'은 두 가지 목적을 가지고 있습니다 : 하나의 주어진 고객에게 현재 판매를 기록하고, 판매 된 작은 컵의 총수를 추적하는 것. 이러한 사용은 충돌합니다. 별도의 변수에 누적해야합니다. 일부 함수의 지역 변수는 사용하지 않습니다. 각 함수 호출 중에 만 존재합니다. –
시작하려면 "합계"이고 어떤 변수가 "현재 판매"인지 결정해야합니다. 당신은 그들을 뒤섞어 놓은 것 같습니다. 실제로 판매를 할 때 _update_ totals에 함수를 호출해야하며,보고 할 때가 아닙니다. 값을 정의하고 내부에서 0으로 설정하는 것뿐만 아니라 그 값을 함수의 인수로 전달해야합니다. – paddy