实现文件复制的程序如下，在wintc环境运行怎么样在程序中插入“文件复制成功”“文件复制失败“然后在界面中输入的提示语，请各位大哥大姐帮助我 谢谢


#include "stdio.h"main( )
{
   FILE *in,*out;
   char ch,infile[10],outfile[10];
   printf("Input the infile name:\n");
   scanf("%s",infile);
   printf("Input the outfile name:\n");
   scanf("%s",outfile);
   if((in=fopen(infile,"r"))==NULL)
   {
      printf("Can't open infile\n"); exit(0);
   }
if((out=fopen(outfile,"w"))==NULL)
   {
      printf("Can't open outfile\n"); exit(0);
   }
   while(!feof(in)) fputc(fgetc(in),out);   /* while((ch=fgetc(in))!=EOF) fputc(ch,out); */
   fclose(in);
   fclose(out);
}