c++ - 逐行读取txt

Question

我正在用 C++ 逐行读取文本文件。我正在使用这段代码:

while (inFile)
{
getline(inFile,oneLine);
}

这是一个文本文件:

-------

This file is a test to see 
how we can reverse the words
on one line.

Let's see how it works.

Here's a long one with a quote from The Autumn of the Patriarch. Let's see if I can say it all in one breath and if your program can read it all at once:
Another line at the end just to test.
-------

问题是我只能阅读以“Here's a long etc...”开头的段落并“立即停止:”我无法解决阅读所有文本。你有什么建议吗？

Answer 1

正确的台词读法是:

std::ifstream infile("thefile.txt");

for (std::string line; std::getline(infile, line); )
{
    // process "line"
}

或者不喜欢 for 循环的人的替代方案:

{
    std::string line;
    while (std::getline(infile, line))
    {
        // process "line"
    }
}

请注意，即使无法打开文件，这也会按预期工作，但如果您想要生成专用诊断，您可能需要在顶部添加额外的检查 if (infile)对于那个条件。