在DOS下如何用TC写不同分区的文件拷贝的程序啊？用到哪些函数呢？帮帮忙啊！

要取不同分区，要用以下函数，当然写copy函数可以用两个参数来完成，应该不难。
getdisk: gets current drive

int getdisk(void);

Prototype in dir.h

Returns the current drive. Drive A is 0.

setdisk: sets current disk drive

int setdisk(int drive);

Prototype in dir.h

Values for drive are 0=A, 1=B, 2=C etc.

Returns the total number of drives available.

"当然写copy函数可以用两个参数来完成" 哪两个参数呢？如何确定制定文件的目录呢？有没有类似的源代码啊？谢谢了！

刚才我写了一个，最少地调用函数，你可以参考一下：
/*filename: mycopy.c a example for copy a file to another file*/
#include
int main(int argc,char* argv)
{
FILE *fpo,*fpi;
int tmp;
char *fname;
if(argc==1)
{
printf("Syntax is mycopy sourcefile targetfile\n"<img src="images/smilies/face-wink.png" align="absmiddle" border="0">;
exit (1);
}
fpi=fopen(argv,"rb"<img src="images/smilies/face-wink.png" align="absmiddle" border="0">;
if(!fpi)
{
printf("cannot open the sourcefile!\n"<img src="images/smilies/face-wink.png" align="absmiddle" border="0">;
exit (2);
}
if(argc==2)
{
printf("Please input target file name:"<img src="images/smilies/face-wink.png" align="absmiddle" border="0">;
while(scanf("%s",&fname));
fpo=fopen(fname,"wb"<img src="images/smilies/face-wink.png" align="absmiddle" border="0">;
}
else fpo=fopen(argv,"wb"<img src="images/smilies/face-wink.png" align="absmiddle" border="0">;
if(!fpo)
{
printf("cannot creat the targetfile!\n"<img src="images/smilies/face-wink.png" align="absmiddle" border="0">;
exit (3);
}
while((tmp=fgetc(fpi))!=EOF)
fputc(tmp,fpo);
fclose(fpi);
fclose(fpo);
return 0;
}

谢谢了。