Question

我有一个项目，我必须将数据文件读入一个名为Honda的结构数组中，该数组的大小适用于10行数据。我无法成功读取文本文件。这是我到目前为止的代码：

1001 2014 Civic LX Red 4
1002 2014 Accord LX Blue 4
1005 2014 Accord EX Gold 6
1006 2014 Civic EX Black 4
1007 2014 Civic LX White 4
1010 2015 Accord EX White 6
1011 2015 Accord LX Black 4
1013 2015 Civic EX Red 4
1014 2015 Civic LX Beige 4
1015 2015 Accord EX Beige 6

文本文件：inventory.txt

import csv

fieldWanted = 'RELH2'
with open('south_camden_topo_v2.xlsx - south_camden_topo_v2.csv') as csvFile:
    reader = csv.reader(csvFile)
    headings = next(reader)
    fieldIndex = headings.index(fieldWanted)
    print (headings)
    count = 0
    for row in reader:
        print (row)
        print (fieldWanted, ':', row[fieldIndex])
        count += 1
        if count > 5 :
            break

Answer 1

你只是缺少逐行读取文件的代码。

#include <iostream>
#include <string>
#include <fstream>
#include <iomanip>
#include <sstream>

using namespace std;

struct Honda {
    int id;
    int year;
    string model;
    string trim;
    string color;
    int engine;

};

const int SIZE = 10;

void openInputFile(ifstream &, string);

int main()
{
    Honda arr[SIZE];

    ifstream inFile;
    string inFileName = "C:\\temp\\1.txt";

    openInputFile(inFile, inFileName);

    int count = 0;
    string line;
    while(inFile.good() && (getline(inFile, line)))
    {
        istringstream iss(line);
        iss >> arr[count].id >> arr[count].year >> arr[count].model >> arr[count].trim >> arr[count].color >> arr[count].engine;

        count++;
    }



    for (int i=0; i < 10; i++)
    {
        std::cout << arr[i].id << " " << arr[i].year << " " << arr[i].model << " " << arr[i].trim << " " << arr[i].color << " " << arr[i].engine << "\n";

    }

    inFile.close();
    return 0;
}

void openInputFile(ifstream &inFile, string inFileName)
{
    //Open the file
    inFile.open(inFileName);

    //Input validation
    if (!inFile)
    {
        cout << "Error to open file." << endl;
        cout << endl;
        return;
    }
}

在C ++中读取数组结构

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