exp07_08.c

《C语言程序设计教程、实验与练习》 源文件下载

#include <stdio.h>
char *week_str[]=
{
 "Monday",
 "Tuesday",
 "Wednesday",
 "Thursday",
 "Friday",
 "Saturday",
 "Sunday"
 };

void main(int argc,char *argv[])
{
 int k;

 if(argc==2)
 {
  sscanf(argv[1],"%d",&k);
  if(k>7)
  {
   printf("command line argument must be in [1..7]\n");
   return;
    }
  printf("%s\n",week_str[k-1]);
   }
 else
  {
   printf("use this program like this: exp07_08 3\n");
    }
 }