显示整个文件

Question

我有一个关于要求用户输入 his/her 姓名和他们想要的分数并显示它的评估。我已经取得了进展，但是当我尝试显示保存文件中的所有文本时（我调用了 scores.txt），它并没有全部打印出来，而是只打印了文本文件的第一行。

这里是代码：

#include <iostream>
#include <fstream>
#include <string>
#include <stdlib.h>

using namespace std;

int score;
int highscore;
string name;

void menu() {
    cout << "1.Enter a score" << endl;
    cout << "2.Display scores" << endl;
    cout << "3.Exit" << endl;
}
void enterScore() {
    cout << "Enter your desired score: ";
    cin >> score;
    cout << "Please enter your name and seperate by a (_): ";
    cin.ignore();
    getline(cin, name);
}
void displayScore() {

    cout << "Display scores: " << endl;
}
void exit() {

}
int main()
{
    ofstream outFile("scores.txt", ios::app);
    ifstream inFile("scores.txt", ios::in);
    int choice;
    char yesOrNo;

    do
    {
        menu();
        cout << "Enter your choice: ";
        cin >> choice;

        switch (choice)
        {
        case 1: enterScore();
            outFile << name << ": " << score << endl;
            break;
        case 2: displayScore();
            inFile >> name;
            inFile >> score;

            cout << name << " " << score << endl;
            break;

        case 3: exit();
            break;
        default:
            cout << "Error!!!" << endl;
            break;
        }
        cout << "Would you like to try again? (y/n): ";
        cin >> yesOrNo;
        system("cls");
    } while (yesOrNo == 'y');
    return 0;
}

如何显示文件中的所有文本，有没有办法像高分板一样对分数进行排序。请帮忙，我非常感谢。

Answer 1

这样试试：

#include <iostream>
#include <fstream>
#include <string>
#include <stdlib.h>

using namespace std;

int score;
int highscore;
string name;

void menu() {
    cout << "1.Enter a score" << endl;
    cout << "2.Display scores" << endl;
    cout << "3.Exit" << endl;
}
void enterScore() {
    cout << "Enter your desired score: ";
    cin >> score;
    cout << "Please enter your name and seperate by a (_): ";
    cin.ignore();
    getline(cin, name);
}
void displayScore() {

    cout << "Display scores: " << endl;
}
void exit() {

}
int main()
{
    ofstream outFile("scores.txt", ios::app);
    ifstream inFile("scores.txt", ios::in);
    int choice;
    char yesOrNo;

    do
    {
        menu();
        cout << "Enter your choice: ";
        cin >> choice;

        switch (choice)
        {
        case 1: enterScore();
            outFile << name << ": " << score << endl;
            break;
        case 2: displayScore();
        while(true){
            inFile >> name;
            inFile >> score;

            cout << name << " " << score << endl;
            if(inFile.eof())
                break;
        }
            break;

        case 3: exit();
            break;
        default:
            cout << "Error!!!" << endl;
            break;
        }
        cout << "Would you like to try again? (y/n): ";
        cin >> yesOrNo;
        system("cls");
    } while (yesOrNo == 'y');
    return 0;
}

显示整个文件

Display the whole file

c++

fstream

file-handling

iostream