c++ - 编译器没有看到第一行？

Question

我正在尝试从文本文件内容中搜索和匹配输入，文件内容是:

ManagerMohab123456789EmployeeSarah987654321.

It doesn't read the 1st line and searching about another user outputs the 2 if conditions!

Here is my code:

    cout << "Username : ";
    cin >> usrname;
    cout << "Password : ";
    cin >> password;
    fstream myfile;
    myfile.open("Data.txt");

        if (myfile.is_open())
        {
            while ( getline (myfile,line) )
            {
                myfile >> culmn1 >> culmn2 >> culmn3;
                if(usrname==culmn1 && password==culmn2)
                {
                    cout << culmn1 << culmn2 <<culmn3;
                    //cout << "Logedin Successfuly\n" ;
                }
                else cout << "Wrong Username or Password!\n";
            }

            myfile.close();
        }
        else cout << "Unable to open the file!\n";

提前感谢您的帮助:)

Answer 1

这个:

getline (myfile,line)

将从流 myfile 中消费一行。