存儲數據struct

-3

我正在運行該程序，但每次退出並再次運行時，矩陣數據[]中的所有數據都將丟失。有沒有辦法保存這些數據，所以當我再次運行它時，我可以檢查它嗎？（很抱歉，如果這個問題太簡單了，我已經開始編碼幾個星期前）存儲數據struct

#include <iostream> 
#include <cstdlib> 
#include <conio.h> 
#include <cstdio> 
#include <iomanip> 

using namespace std; 

const int TRUE = 1; 
static int n = 0; 


struct Restaurant{ 
    char name[30]; 
    char address[50]; 
    float price; 
    char food[20]; 
}; 

Restaurant data[10]; 

void inputData(void); 
void outputData(void); 

    int main() 
{ 
    char option; 

    cout << "============Welcome to Restaurant Interface!============\n" << endl; 

    while(TRUE) 
    { 
     cout << "Type \'A\' to add a restaurant data " << endl; 
     cout << "  \'S\' to search for restaurants "<< endl; 
     cout << " or \'E\' to exit" << endl; 
     option = getch(); 

     switch (option) 
     { 
      case ('a'): 
      case ('A'):    
       inputData(); 
       break; 
      case ('s'): 
      case ('S'): 
       outputData(); 
       break; 
      case ('e'): 
      case ('E'): 
       cout << "\n\n==============================================================\n\n"; 
       cout << "Thanks for using Restaurant Interface! See you soon mate!" << endl; 
       exit(0); 
      default: 
       cout << "\nInvalid option. please choose again\n";     
     } 

     cout << "\n\n==============================================================\n\n"; 
    } 

    system("PAUSE"); 
    return 0; 
} 

void inputData() 
{ 
    cout << "\n\n==============================================================\n\n"; 
    char temp[80]; 
    cout << "Type the name of your restaurant: "; gets(data[n].name); 

    cout << "Type the address of your restaurant: "; gets(data[n].address); 

    cout << "Type the price range: "; gets(temp); 
    data[n].price = atof(temp); 

    cout << "Type the style of food: "; gets(data[n].food);; 

    cout << "New restaurant data added successfully!!!" << endl; 

    n++;  
} 

void outputData() 
{ 
    cout << "\n\n==============================================================\n\n"; 
    if(!n) 
    { 
     cout << "Empty list." << endl; 
     return; 
    } 

    cout << "Restaurant list" << endl; 
    cout << left << setw(20) << "Name"; 
    cout << left << setw(30) << "Address"; 
    cout << left << setw(15) << "Average Price"; 
    cout << left << setw(10) << "Type of cuisine" << endl; 
    for (int i=0; i<n; i++) 
    { 
     cout << left << setw(20) << data[i].name; 
     cout << left << setw(30) << data[i].address; 
     cout << "R$" << left << setw(15) << data[i].price; 
     cout << left << setw(10) << data[i].food << endl; 
    } 
}

來源

2016-03-04 Lucas Azevedo

所以你的意思是你想要將你的輸入序列化到一個文件，並從你的程序的另一個運行中恢復（反序列化）它們？ –

每次啓動一個程序並初始化一個變量時，它都會存儲在您的內存中。當變量超出範圍或者你簡單地退出程序時，你的變量將從內存中清除。如果你想保留你的數據，你需要將它存儲在一個文件中。 – ppsz

請發佈[mcve]，重點放在*「最小」*。 –