python 判断奇数偶数

def a(numble):
    print('奇数')
    for i in range(numble):
        if i&1:
            print(i,end=' ')
    print('\n偶数')
    for i in range(numble):
        if not i&1:
            print(i,end=' ')
a(int(input('请输入一个数')))