注意：CreateFile 跟 fopen 不同，打开文件时不区分 文本方式 或 二进制 方式ReadFile 或 WriteFile 都是对二进制数据进行操作HANDLE WINAPI CreateFile(  __in          LPCTSTR lpFileName,             // 文件路径  __in          DWORD dwDesiredAccess,          // 访问权限，GENERIC_READ | GENERIC_WRITE  __in          DWORD dwShareMode,              // 共享模式，NULL | FILE_SHARE_READ | FILE_SHARE_WRITE  __in          LPSECURITY_ATTRIBUTES lpSecurityAttributes,    // 安全属性  __in          DWORD dwCreationDisposition,    // 创建配置，CREATE_ALWAYS | CREATE_NEW | OPEN_ALWAYS | OPEN_EXISTING  __in          DWORD dwFlagsAndAttributes,     // 扩展属性，NULL | FILE_ATTRIBUTE_HIDDEN | FILE_ATTRIBUTE_READONLY  __in          HANDLE hTemplateFile            // 指定一个文件句柄，新文件将从这个文件中复制扩展属性。NULL);BOOL WINAPI ReadFile(  __in          HANDLE hFile,                   // 文件句柄  __out         LPVOID lpBuffer,                // 接收数据用的 buffer  __in          DWORD nNumberOfBytesToRead,     // 要读取的字节数  __out         LPDWORD lpNumberOfBytesRead,    // 实际读取到的字节数  __in          LPOVERLAPPED lpOverlapped       // OVERLAPPED 结构，一般设定为 NULL );BOOL WINAPI WriteFile(  __in          HANDLE hFile,                   // 文件句柄  __in          LPCVOID lpBuffer,               // 要写入的数据  __in          DWORD nNumberOfBytesToWrite,    // 要写入的字节数  __out         LPDWORD lpNumberOfBytesWritten, // 实际写入的字节数  __in          LPOVERLAPPED lpOverlapped       // OVERLAPPED 结构，一般设定为 NULL);DWORD WINAPI GetFileSize(  __in          HANDLE hFile,                   // 文件句柄  __out         LPDWORD lpFileSizeHigh          // high-order 的返回值，一般设定为 NULL);读文件：void read(const wchar_t* strPath){    HANDLE hFile = ::CreateFile(strPath, GENERIC_READ, 0, NULL, OPEN_EXISTING, NULL, NULL);    if (hFile != INVALID_HANDLE_VALUE)    {        DWORD nFileSize = ::GetFileSize(hFile, NULL);        char* lpBuffer = new char[nFileSize];        DWORD nNumberOfBytesRead;        BOOL bRet = ::ReadFile(hFile, lpBuffer, nFileSize, &nNumberOfBytesRead, NULL);                // TODO ...                delete[] lpBuffer;        CloseHandle(hFile);    }}写文件：void write(const wchar_t* strPath, const wchar_t* strContent, const int nContentSize){    HANDLE hFile = ::CreateFile(strPath, GENERIC_WRITE, 0, NULL, CREATE_ALWAYS, NULL, NULL);    if (hFile != INVALID_HANDLE_VALUE)    {        DWORD nNumberOfBytesWritten;        ::WriteFile(hFile, strContent, nContentSize, &nNumberOfBytesWritten, NULL);                // TODO ...                CloseHandle(hFile);    }}