C语言 求对应的星座问题

[xczno1]

编一个输入生日后, 输出相应的星座的程序,只是,当输入有误时, 表示出错信息
如:
$./a.out
Enter your birthday [mm/dd] : 01/23
Your birthday is Jan. 23.
Therefore, your constellation is the AQUARIUS.
$./a.out
Enter your birthday [mm/dd] : 13/01
Error: strange data was entered.
$./a.out
Enter your birthday [mm/dd] : 02/30
Error: strange data was entered.
=============================================================
Mar.21 - Apr.19 ARIES
Apr.20 - May.20 TAURUS
May.21 - Jun.21 GEMINI
Jun.22 - Jul.22 CANCER
Jul.23 - Aug.22 LEO
Aug.23 - Sep.22 VIRGO
Sep.23 - Oct.23 LIBRA
Oct.24 - Nov.21 SCORPIO
Nov.22 - Dec.21 SAGITTARIUS
Dec.23 - Jan.19 CAPRICORN
Jan.20 - Feb.18 AQUARIUS
Feb.19 - Mar.20 PISCES
==============================================================

[neosu]

你想要问什么？

[wxiaozhe]

Enter your birthday [mm/dd] : 02/30
Error: strange data was entered.

这个Erro显示应该是作者自己设置的吧，这是程序健壮性强的一种表现。

[xczno1]

我当然想问该怎么编啊, 提供点思路也好啊

[defty]

mm/dd
if (mm>0 & mm <13){
这里做一个switch...case
...
{
case 1: if (dd>0 and dd<31) {判断星座} else {报错}
...
}
}

[eqxu]

这种问题自己解决

[songzx20]

这个我也不知怎么写哦.请大侠们给点思路吧.