//复制文件的代码
BYTE *file,sf[1028056];
FILE *fa,*fo;
long bytecnt;
file=sf;

if((fa=fopen("E:\\fileA.exe","rb"))==NULL)//用二进制打开文件1
{
MessageBox("文件1打开错误");//报错
return;
}
if((fo=fopen("E:\\fileB.exe",","wb"))==NULL)//用二进制打开文件2
{
MessageBox("文件2打开错误");//报错
return;
}
while(bytecnt=fread(file,sizeof(BYTE),1028056,fa))
{
fwrite(file,bytecnt,1,fo);
fseek(fa,bytecnt,1);
fseek(fo,bytecnt,1);
}
fclose(fa);
fclose(fo);