C++读txt

先上代码

#include <iostream>
#include <fstream>
#include <cassert>
#include <string>
#include <vector>

using namespace std;

vector<string> split(string str)
{
    
    vector<string> result;
    string temp("");
    
    for (size_t i = 0; i < str.size(); i++)
    {
        if (str[i] == '$' )
        {
            result.push_back(temp);
            temp = "";
        }
        else
        {
            temp += str[i];
        }
    }
    return result;
}


//1 逐行读取
void readTxt(string file)
{
    ifstream infile;
    infile.open(file.data());   //将文件流对象与文件连接起来 
    assert(infile.is_open());   //若失败,则输出错误消息,并终止程序运行 

    string s;
    while (getline(infile, s))
    {
        cout << s << endl;
        vector<string> result = split(s);
        for (size_t i = 0; i < result.size(); i++)
        {
            cout << result[i] << "  ";
        }
        cout << endl;
    }
    infile.close();             //关闭文件输入流 
}


int main() 
{
    readTxt("merge.txt");
    system("pause");
    return 0;
}

 关于文本文件编码格式问题，可以参考下面的博客：

https://www.cnblogs.com/yiluyaoyao/articles/5026166.html