如何逐行阅读文本留言并用逗号分隔文本 [英] How can I read a text lien by line and separate the text it by comma

问题描述

你好，



我是C ++的新手。我有一个名为Read.txt的文件。它的用户名和密码如下。



username1，password1

username2，password2

用户名3，密码4





如何逐行使用C ++阅读本文，以后我该怎么办？单独的用户名和密码在单独的字符串中。



后来我需要在cstring类型的地图中传递用户名和密码。



问候，

Joy

Hello,

I am new to C++. I have a file named as "Read.txt".It has username and password as below.

username1, password1
username2, password2
username3, password4


How can I read this using C++ line by line and later how can I separate username and password in seperate string.

Later I need to pass username and password in map of cstring type.

Regards,
Joy

推荐答案

在那里你会找到你的解决方案：

http://www.cplusplus.com/forum/general/17771/ [ ^ ]

There you will find your solution:
http://www.cplusplus.com/forum/general/17771/[^]

#include <fstream>
#include <sstream>
#include <string>

int main()
{
    // Open file
    std::ifstream infile("D:\\accounts.txt");

    // read line by line
    std::string line;
    while (std::getline(infile, line))
    {
        std::istringstream iss(line);

        std::string username;
        std::string password;

        // read username and password from each line
        std::getline(iss, username, ',');
        std::getline(iss, password, ',');

        // use username/password further...
    }

	return 0;
}

</string></sstream></fstream>

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