在C 中读取阵列结构

reading array struct in C++

本文关键字：阵列 结构 读取      更新时间：2023-10-16

我有一个项目，我必须将数据文件读取为一个称为本田的结构阵列，该阵列适用于10行数据。我很难成功阅读文本文件。在这里，我到目前为止的代码：

#include "stdafx.h"
#include <iostream>
#include <string>
#include <fstream>
#include <iomanip>
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:\Users\Michael\Documents\inventory.txt";
    openInputFile(inFile, inFileName);
    for (int count = 0; count < SIZE; count++) {
        inFile >> arr[count].id >> arr[count].year >> arr[count].trim >> arr[count].color >> arr[count].engine;
    }
    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;
    }
}

文本文件：库存.txt 

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

您只是缺少代码逐行读取文件。

#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;
    }
}
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