如何用python判斷奇偶數

while True:
 try:
 num=int(input('輸入一個整數：')) #判斷輸入是否為整數
 except ValueError: #不是純數字需要重新輸入
 print("輸入的不是整數！")
 continue
 if num%2==0:
 print('偶數')
 else:
 print('奇數')
 brea

輸入一個整數：81
奇數

def judgeOdd(num):
 if num %2 >0:
 return '%i is an odd number.'%num
 else:
 return '%i is an even number.'%num
for i in range(-3,11):
 print(judgeOdd(i))

-3 is an odd number.
-2 is an even number.
-1 is an odd number.
0 is an even number.
1 is an odd number.
2 is an even number.
3 is an odd number.
4 is an even number.
5 is an odd number.