判断一个整数是不是回文数

palindromic_number.py

def main(a):
    a = abs(a)
    b = a
    c = 0
    while b > 0:
        c = c * 10 + b % 10
        b //= 10
    print(c == a)

if __name__ == '__main__':
    main(0)
    main(3)
    main(33)
    main(343)
    main(3443)
    main(35)