c++ - 使用 getfile 跳过一行

Question

对于我的程序，我们应该读取一个文本文件并将其打印到屏幕上。在文本文件中，消息可能如下所示:

#email
mailservice
birdman
Intro 
Hello Birdman! Welcome!
#email
Frank
birdman
Hello
Hello Birdman, how are you?

我需要跳过#email 以便打印出来:

From: mailservice
To: birdman
Subject: Intro 
Message: Birdman! Welcome!

From: Frank
To: birdman
Subject: Hello
Message:Hello Birdman, how are you?

这是我的代码:

std::string filename1 = GetInboxFile(username);
std::ifstream fin(filename1);
std::string word;
std::cout << "\n";

std::string formatted = FormatEmailString("From: ", "To: ", "Subject: ", "Message: ");
//FormatEmailString is a function

std::cout << formatted;

while (fin.eof() == false)
{

    std::string line = GetLine(fin);

    if (fin.eof() == false)
    {

        std::cout << line << std::endl;

    }//END IF STATEMENT

}//END WHILE LOOP

std::cout << std::endl;
fin.close();

Answer 1

while (fin)
{
    std::string line = GetLine(fin);

    if (fin) // @DietmarKühl: checking if the input was successful 
    {

        // if (line.find("#email") != std::string::npos) 
        if(line == "#email\n") 
        {
             line = "\n"; // you want a empty line instead 
             // continue; // you could use continue to simply skip it
        }

        std::cout << line << std::endl;    
    }
}