13_11.cpp

来自「C程序参考,简单易懂,是初学者不可少的参考资料」· C++ 代码 · 共 17 行

#include <stdio.h>
main()
{
  FILE *fp;
  if((fp=fopen("abc", "r"))==NULL)       
  {
    printf("cann't open the file:abc.");
    return -1;
  }
  else 
  {
    printf("open the file:abc.");
    fclose(fp);
    return 0;
  }
}