暴力法，蓝桥杯2020年第十一届省赛真题-回文日期

解题思路:

注意事项:

参考代码:

from datetime import timedelta, datetime
def pan1(day):
    for i in range(4):
        if day[i] != day[7 - i]:
            return False
    return True
def pan2(day):
    if pan1(day):
        if day[0] == day[2] and day[1] == day[3]:
            return True
        else:
            return False
    else:
        return False
def add(days):
    date_obj = datetime(int(days[0:4]), int(days[4:6]), int(days[6:8]))
    next_day = date_obj + timedelta(days=1)
    next_day_str = ''.join(str(next_day).split('-'))
    return next_day_str[0:8]
day = input()
ans1 =day
ans2 =day
for i in range(int(day), 99999999):
    ans1 = add(ans1)
    if pan1(ans1):
        print(ans1)
        break
for i in range(int(day), 99999999):
    ans2 = add(ans2)
    if pan2(ans2):
        print(ans2)
        break