程序设计c语言

更新时间2019-05-10 06:36:18

运用命令行参数输出星期一到星期天的英文名

程序参考

#include <stdio.h>

int main(int ac,char *av[])

{

static char *days[8] =

{"","Monday","Tuesday","Wednesday"

,"Thursday","Friday","Saturday","Sunday"};

if (ac!=2 || av[1][0]<'0' || av[1][0]>'7' || av[1][1])

printf("Parameter Error! ");

else

printf("%s ",days[av[1][0]-'0']);

return 0;

}