[MEMO] C++ 輸出至檔案

#include<iostream>
#include<fstream>

int main(){

    using namespace std;

    char automobile[50];
    int year;
    double a_price,d_price;

    ofstream outFile;  //  產生輸出物件，簡單來說就是 cout 區段的複製。(將 cout 取代為 outFile )
    outFile.open("carinfo.txt");   //  open() 函數與檔案建立關聯。

    cout << "Enter the make and model of automobile: ";
    cin.getline(automobile, 50);
    cout << "Enter the model year: ";
    cin >> year;
    cout << "Enter the original asking price: ";
    cin >> a_price;
    d_price = 0.913* a_price;

//
    
    cout.precision(2);
    cout.setf(ios_base::showpoint);
    cout <<    fixed; // 說明請見連結 http://it-easy.tw/cout-float/
    cout << "Make and model: "<< automobile << endl;
    cout << "Was asking $" << a_price << endl;
    cout << "Now asking $" << d_price << endl;

//
    
    outFile << fixed;
    outFile.precision(2);
    outFile.setf(ios_base::showpoint);
    outFile << "Make and model: " << automobile << endl;
    outFile << "Year: " << year << endl;
    cout << "Was asking $" << a_price << endl;
    cout << "Now asking $" << d_price << endl;

    outFile.close(); //  程式完成檔案的使用後，關閉連結。

system("pause");
return 0;
}