13_1.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 18 行

#include "stdio.h"
#include "process.h"
void main()
{
  FILE *fp;

  if((fp=fopen("abc", "r"))==NULL)
  {
    printf("cann't open the file:abc.");
    exit(0);
  }
  else
  {
    printf("open the file:abc.");
    fclose(fp);
   }
}