Win32 复制文件

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第一种方法：

#include "stdafx.h"#include <Windows.h>#include <stdio.h>#define BUF_SIZE 256int _tmain(int argc, _TCHAR* argv[]){HANDLE hIn,hOut;DWORD nIn,nOut;CHAR Buffer[BUF_SIZE];if (argc!=3){printf("Usage: cpW file1 file2\n");return 1;}hIn=CreateFile(argv[1],GENERIC_READ,0,NULL,OPEN_EXISTING,0,NULL);if (hIn==INVALID_HANDLE_VALUE){printf("Cannot open input file. Error:%x\n",GetLastError());return 2;}hOut=CreateFile(argv[2],GENERIC_WRITE,0,NULL,CREATE_ALWAYS,FILE_ATTRIBUTE_NORMAL,NULL);if (hOut==INVALID_HANDLE_VALUE){printf("Cannot open output file. Error:%x\n",GetLastError());return 3;}while (ReadFile(hIn,Buffer,BUF_SIZE,&nIn,NULL)&&nIn>0){WriteFile(hOut,Buffer,nIn,&nOut,NULL);if (nIn!=nOut){printf("Fatal write error:%x\n",GetLastError());return 4;}}CloseHandle(hIn);CloseHandle(hOut);return 0;}

第二种方法：用win32便利函数

#include "stdafx.h"#include <Windows.h>#include <stdio.h>int _tmain(int argc, _TCHAR* argv[]){if (argc!=3){printf("Usage: cpW file1 file2\n");return 1;}if (!CopyFile(argv[1],argv[2],false)){printf("copy file Error:%x\n",GetLastError());return 2;}return 0;}

程序运行，dos下，3个参数。

*.exe "源文件名称" "目标文件名称"

三个文件在同一目录下