如何在 WIN32 API 的新行中写入文件 [英] How to writefile in new line in WIN32 API

问题描述

我正在尝试将数据写入文件.但是，我想在新行中添加新数据，但现在不能.

I'm trying to write data to file. However, I want to add new data in new line, but now I can't.

HANDLE hFile;
hFile = CreateFile(_T("HELLO.txt"),               // file to open
    GENERIC_WRITE,          // open for writing
                   0,       // share for writing
                   NULL,                  // default security
                 //  CREATE_NEW,         // existing file only
                 OPEN_ALWAYS,
                   FILE_ATTRIBUTE_NORMAL, // normal file
                   NULL);                 // no attr. template

// Write to File
BOOL bErrorFlag = FALSE;

DWORD dwPtr = SetFilePointer( hFile, 0, NULL, FILE_END); //set pointer position to end file
LPWSTR data = _T("Data '\n'");
DWORD dwBytesToWrite = lstrlenW(data)*2;
DWORD a = 0;
bErrorFlag = WriteFile( 
                hFile,           // open file handle
                data,      // start of data to write
                dwBytesToWrite,  // number of bytes to write
                &dwPtr, // number of bytes that were written
                NULL);            // no overlapped structure

推荐答案

Windows 使用 CR/LF 组合来表示行尾，如果要显示换行符，则需要写\r\n"正确地在，例如，记事本中.

Windows uses a CR/LF combination to signify the end of line, you need to write "\r\n" if you want the line break to show up correctly in, e.g., Notepad.

这篇关于如何在 WIN32 API 的新行中写入文件的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！