037.统计文件的字符数

#include <stdio.h>
main()
{
  char fname[80];/*存贮文件名*/
  FILE *rfp;
  long count;/*文件字符计数器*/
  clrscr();
  printf("Please input the file's name:\n");
  scanf("%s",fname);
  if((rfp=fopen(fname,"r"))==NULL)
  {
    printf("Can't open file %s.\n",fname);
    exit(1);
  }
  count=0;
  while(fgetc(rfp)!=EOF)
    count++;
  fclose(rfp);/*关闭文件*/
  printf("There are %ld characters in file %s.\n",count,fname);
  puts("\n Press any key to quit...");
  getch();
}