ret_exit.c

来自「c语言编程900例的源代码」· C语言 代码 · 共 25 行

#include <stdio.h>
#include <stdlib.h>

int main (int argc, char *argv[])
 {
   char line[255];  // Line read from the file

   FILE *fp;

   if (fp = fopen(argv[1], "r"))
     {
       while (fgets(line, sizeof(line), fp))
         fputs(line, stdout);
       fclose(fp);

       return(0);  // Successful
     }
   else 
     {
       printf("Cannot open %s\n", argv[1]);
       return(1);
     }
 }