从 txt 文件读取到矢量中，然后按数字C++排序

>03 Ribena 7 2.20

17 咖啡 76 1.50

24 茶 21 1.10

39 精灵3 1.70

56 可乐 18 1.70

68橙色106 2.20

77 青柠 11 2.10

86 葡萄 34 2.30

55 巧克力 15 2.70

16 霜冻 20 2.20

65柠檬水21 1.90

55酸奶99 3.40

05 冲床 3 1.70

这些记录需要根据第一列上的项目编号进行排序。

void record_initialize()
{
    vector<string> record;
    cout << "n";
    record.push_back("03""tt""Ribena""tt""7""tt""2.20");
    record.push_back("17"  "tt""Coffee"  "tt""76"  "tt""1.50");
    record.push_back("24"  "tt""Tea"     "tt""21"   "tt""1.10");
    record.push_back("39"  "tt""Sprite"   "tt""3" "tt""1.70");
    record.push_back("56"   "tt""Cola"  "tt""18" "tt""1.70");
    record.push_back("68"  "tt""Orange"  "tt""106""tt""2.20");
    record.push_back("77"  "tt""Lime"    "tt""11" "tt""2.10");
    record.push_back("86"  "tt""Grape"     "tt""34" "tt""2.30");
    record.push_back("55" "tt" "Chocolate"   "t""15" "tt""2.70");
    record.push_back("16"  "tt""Frosty"    "tt""20" "tt""2.20");
    record.push_back("55" "tt" "Lemonade"  "t""21" "tt""1.90");
    record.push_back("55"  "tt""Yoghurt"   "tt""99" "tt""3.40");
    record.push_back("05"  "tt""Punch"     "tt""3"  "tt""1.70");
    cout << "n";
    //sort(record.begin(), record.end());
    ofstream output_file("Drinks.txt");
    ostream_iterator<string> output_iterator(output_file, "n");
    copy(record.begin(), record.end(), output_iterator);
}
void record_add()
{
    DrinkRecord d;
    cout << "n";
    cout << "Please enter the item no.: ";
    cin >> d.no;
    cout << "n";
    cout << "Please enter name of drink: ";
    cin >> d.name;
    cout << "n";
    cout << "Please enter the quantity: ";
    cin >> d.quantity;
    cout << "n";
    cout << "Please enter the unit price: ";
    cin >> d.price;
    cout << "n";
    ofstream myfile;
    myfile.open("Drinks.txt", ios::app | ios::out);
    cout << "n";
    myfile << d.no << "tt" << d.name << "tt" << d.quantity << "tt" << d.price << endl;
    myfile.close();
}
void record_view()
{
    cout << "n";
    cout << "ItemNo" << "tt" << "ItemName" << "t" << "Quantity" << "t" << "Unit Price" << endl;
    cout << "n";
    string getcontent;
    ifstream openfile("Drinks.txt");
    if (openfile.is_open())
    {
        while (!openfile.eof())
        {
            getline(openfile, getcontent);
            cout << getcontent << endl;
        }
    }
}

我已经设法做到了这一部分。但是在将新项目添加到饮料库存后，我现在遇到了排序问题。我的讲师告诉我将 txt 文件读入向量，然后对向量进行排序，然后显示结果。我似乎无法采取正确的步骤。任何帮助将不胜感激。我尝试过这样的事情。

void read_File() //Read the file into the vector function definition
{
    vector<string> logs;
    string line;

    cout << "Testing loading of file." << endl;
    ifstream myfile("Drinks.txt");
    if (myfile.is_open())
    {
        while (!myfile.eof())
        {
            getline(myfile, line);
            logs.push_back(line);
            sort(line.begin(), line.end());
        }
        myfile.close();
    }
    else{
        cout << "Unable to open file." << endl;
    }
}

sort(line.begin(), line.end(), mycolumncomparator);
// Fill the below function correctly
bool mycolumncomparator(const std::string& i, const std:string& j) 
{ 
    // Read the first column from both strings
    // covert them into int using atoi
    // return (int1 < int2);
}