检查给定的值是字母还是数字;如果是数字，则检查它是偶数还是奇数

Question

ch = input("Enter any value: ")
if((ch>='a' and ch<='z') or (ch>='A' and ch<='Z')):
print(ch, "is an alphabet.")
elif(ch%2==0):
print("even")
else(ch%2=!0):
print("odd")

Answer 1

检查一个值是否是数字的最好方法是，好吧，试试看。

ch = input("Enter any value: ")
try:
v = int(ch)
except ValueError:
print(ch, "is not a number")
else:
if v % 2 == 0:
print("even")
else:
print("odd")