從文本文件中輸入數據可能會遇到問題

Question

我在C++中有一個類分配，基本上希望我使用一個結構以及一個或兩個數組來允許客戶從早餐菜單中查看和選擇項目。每當我去運行程序時，它只是說它退出時的返回值爲0.我已經嘗試過檢查，我無法弄清楚什麼是錯誤的。我懷疑我可能沒有正確加載文本文件中的數據，因此沒有結果，因爲沒有加載數據。

這裏是我的代碼：

//Student Name: Jacob Gillespie 

    //Date: 10/18/13 

    //Program: Breakfast Billing System 

    //Summary: Program allows customer to select different items from a menu and sums up 

their total 

//Headers 
#include <iostream> 
#include <fstream> 
#include <string> 

using namespace std; 

//Define structs 

struct menuItemType 
{ 
    string menuItem; 
    double menuPrice; 
}; 

//Declare variables and arrays 

ifstream inData; 

const double tax = 0.05; 

int itemSelected[8]; 

menuItemType menuList[8]; 


//Provide function prototypes 

void getData(ifstream& inFile); 
void showMenu(); 

void printCheck(); 

void customerSelection(); 




//Main Program Execution 

int main() 
{ 
    //Initialize itemSelected to 0 

for (int counter = 0; counter < 8; counter++) 
    itemSelected[counter] = 0; 

    //Open input file 
inData.open("menu.txt"); 

     //Execute functions 
void getData(ifstream& inData); 
void showMenu(); 
void customerSelection(); 
void printCheck(); 



inData.close(); 
return 0; 
} 

//Function Definitions 

    //getData 
void getData(ifstream& inFile) 
{ 
    for (int counter = 0; counter < 8; counter++) 
    { 
     inData >> menuList[counter].menuItem 
      >> menuList[counter].menuPrice; 
    } 
} 

    //showMenu 
void showMenu() 
{ 
    for (int counter = 0; counter < 8; counter++) 
    cout << menuList[counter].menuItem << " " << menuList[counter].menuPrice << endl; 
} 

    //printCheck 
void printCheck() 
{ 
    double total = 0; 
    double addedTax = 0; 

    for (int counter = 0; counter < 8; counter++) 
     if (itemSelected[counter] = 1) 
    { 
     cout << menuList[counter].menuItem << " " << menuList[counter].menuPrice << endl; 
     total = total + menuList[counter].menuPrice; 
    } 

addedTax = total * tax; 

cout << "Tax " << addedTax << endl; 
cout << "Amount Due " << total << endl; 

} 

    //customerSelection 
void customerSelection() 
{ 
string choice; 

for (int counter = 0; counter < 8; counter++) 
    { 
     cout << "If you would like to order the item, " << menuList[counter].menuItem << ", please enter 'yes'. " 
     << endl << "If not, please enter 'no'." << endl; 
     if (choice == "yes") 
      itemSelected[counter] = 1; 
    } 
} 

Answer 1

的void S IN主所有的函數調用之前是不必要的，你必須

//Execute functions