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

检查值是否为数字的最好方法是尝试一下。

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")