将文件转换为字符串数组C++

Convert files into string array C++

本文关键字：数组 C++ 字符串 文件 转换      更新时间：2023-10-16

我需要读取一个文件并将其转换为字符串数组，但是当它读取文件时，它不会在数组中放置任何内容。这是我当前的代码：

string code[200];
string name;
int lines;
string filename;
int readfile(){
  ifstream inFile;
  int counter = 0;
  cout << "Which file would you like to open?n";
  cin >> filename;
  countlines();//counts total lines of file
  inFile.open(filename);
  if(inFile.fail())
  {
    cout << "File did not open correctly, please check itn";
    system("pause");
    exit(0);
    //return 1;
  }
  inFile >> name;
  for (int i=0;i < lines; i++)
  {
    inFile >> code[i];
    if (!inFile)
      cout << "Error" << endl;
    break;
  }
  inFile.close();
  cout << "Now opened: " << name << endl;
  return 0;
}

#include <vector>
#include <string>
#include <fstream>
#include <iostream>
using namespace std;
vector<string> lines;
bool readFile(string filename){
    ifstream file;
    string line;
    file.open(filename.c_str());
    if(!file.is_open()){
        return false;
    }
    while (getline(file, line)) {
        lines.push_back(line);
    }
    return true;
}

int main(){
    readFile("test.txt");
    for(int i = 0; i < lines.size(); ++i){
        cout << lines[i] << endl;
    }
    return 0;
}

这是一个更简单的行读取实现，如果文件超过 200 行，它不会崩溃：

vector<string> code;
string s;
while (getline(inFile, s)) {
    code.push_back(s);
}

你需要改变

inFile.open(filename);

自：

inFile.open(filename.c_str());
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