Question

我一直试图根据以下两者之间的选择在阵列中搜索特定的汽车（阵列）：汽缸，型号，年份或汽缸数，并在此处从屏幕上显示通过搜索检索到的项目。我在此处显示的文本文件中的数据已经传递到数组中，并打印为：

Volkswagen
Jetta
2016
4

Jeep
Wrangler
2008
6

Toyota
Corolla
1999
4

Chevy
Malibu
2018
6

Chevy
Malibu
2014
6

BMW
320i
2014
6

Jeep 
GrandCharokeeLaredo
2006
6

Ford
Fusion
2012
4

Chevy
Equinox
2015
4

Volkswagen
Jetta
1998
4

我的问题是我不知道如何从菜单中的用户输入（例如：“大众汽车”）进行传输，并显示具有该特性的阵列。

#include <iostream>
#include <string>
#include <iomanip>
#include <fstream>
#include <time.h>
#include <math.h>
using namespace std;

class Cars
{
private:
    // Private variables of cars
    string make;
    string model;
    int year;
    int cylinders;
public:

    // Function within the objects
    void setMake(string m) { make = m; }
    string getMake() { return make; }

    void setModel(string mo) { model = mo; }
    string getModel() { return model; }

    void setYear(int y) { year = y; }
    int getYear() { return year; }

    void setcylinders(int c) { cylinders = c; }
    int getCylinders() { return cylinders; }


};

int main()
{
    //Opening the file
    ifstream inputFile;
    inputFile.open("cars.txt");

    // Variables for car characteristics
    string make;
    string model;
    int year;
    int cylinders;

    string inMa;
    string inMo;
    int inYe;
    int inCy;

    // Object array
    Cars car[10];

    cout << " Display of available automobiles: " << endl;
    cout << endl;


    // Reading from file and passing into array
    for (int x = 0; x < 10; x++)
        if (inputFile >> make >> model >> year >> cylinders)
        {

            car[x].setMake(make);
            car[x].setModel(model);
            car[x].setYear(year);
            car[x].setcylinders(cylinders);


            cout << right << setw(7) << " Car #" << x << " " << endl;
            cout << "Maker: " << make << endl;
            cout << "Model: " << model << endl;
            cout << "Year made: " << year << endl;
            cout << "Number of cylinders: " << cylinders << endl;
            cout << endl;

        }
    inputFile.close();

    int selection;
    cout << " Selection of automobiles:" << endl;
    cout << " Select an option to describe your car/cars. " << endl;
    cout << " ----------------------------" << endl;
    cout << " 1. Maker of Car: " << endl;
    cout << " 2. Model of Car: " << endl;
    cout << " 3. Year of the Car made: " << endl;
    cout << " 4. Number of cylinders: " << endl;
    cin >> selection;
    if (selection == 1)
    {
        cout << " Who is the maker of the car? " << endl;
        // Need help displaying array that contain a specific variable 
        // Ex: All arrays that contain "Jeep"
    }
    else if (selection ==2)
    {
       cout << " What is the model of the car? " << endl;
       // Need help displaying array that contain a specific variable
    }
    else if (selection ==3)
    {
       cout << " What was the year the car was made? " << endl;
       // Need help displaying array that contain a specific variable
    }
    else if (selection ==4)
    {
       cout << " How many cylinders does the car have?" << endl;
       // Need help displaying array that contain a specific variable
    }
    else
    {
       cout << "Enter a valid response" << endl;
    }
    system("pause");
    return 0;
}

如何将数组与用户输入匹配，并根据对象数组将其输出给用户？我不担心用户在“ cin”期间是否错误输入了变量。

搜索和显示基于用户输入的特定阵列的阵列

0 个答案: