#include "stdio.h"
/* 保护硬盘,绝对不要一个字节一个字节复制 */
#define SIZEOFBUFFER 256*1024L /* 缓冲区大小,默认为256KB */
long filesize(FILE *stream)
{
long curpos, length
curpos = ftell(stream)
fseek(stream, 0L, SEEK_END)
length = ftell(stream)
fseek(stream, curpos, SEEK_SET)
return length
}
int copyfile(const char* src,const char* dest)
{
FILE *fp1,*fp2
int fsize,factread
static unsigned char buffer[SIZEOFBUFFER]
fp1=fopen(src,"rb")
fp2=fopen(dest,"wb+")
if (!fp1 || !fp2) return 0
for (fsize=filesize(fp1)fsize>0fsize-=SIZEOFBUFFER)
{
factread=fread(buffer,1,SIZEOFBUFFER,fp1)
fwrite(buffer,factread,1,fp2)
}
fclose(fp1)
fclose(fp2)
return 1
}
int main()
{
copyfile("file1.txt","file2.txt")
return 0
}
BOOLCopyFile(LPCTSTR
lpExistingFileName,LPCTSTR
lpNewFileName,BOOL
bFailIfExists
)
说明
复制文件。与vb的filecopy命令相似
返回值
Long,非零表示成功,零表示失败。会设置GetLastError
参数表
参数
类型及说明
lpExistingFileName
String,源文件名
lpNewFileName
String,目标文件名
bFailIfExists
Long,如果设为TRUE(非零),那么一旦目标文件已经存在,则函数调用会失败。否则目标文件被改写