第一直觉，有点不信，为啥是千年一遇的对称日，废话不多说，代码来验证！ 1 2 3 4 5 6 7 8 9 10 11 12 13 month_day = {'01': 31, '02': 28, '03':31, '04':30, '05':31, '06':30, '07':31, '08':31, '09':30, '10':31, '11':30, '12':31} all_m_d = [] for mon, days in month_day.items(): for day in range(1, days+1): temp = str(mon) + '{:0>2}'.format(str(day)) all_m_d.append(temp) for i in range(1949, 3000): year = str(i) if year[::-1] in all_m_d: print(year+year[::-1]) 　　 结果如下： View Code 观察后发现，千年对称日？？明年就有好吧（20211202）！ 再猜测：是不是 两个数字组成的对称日，千年才有一次？ 验证如下： 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 month_day = {'01': 31, '02': 28, '03':31, '04':30, '05':31, '06':30, '07':31, '08':31, '09':30, '10':31, '11':30, '12':31} all_m_d = [] for mon, days in month_day.items(): for day in range(1, days+1): temp = str(mon) + '{:0>2}'.format(str(day)) all_m_d.append(temp) for i in range(1949, 5000): year = str(i) if year[::-1] in all_m_d: y_m_d = year+year[::-1] if len(set(y_m_d)) == 2: print(y_m_d) 　　 　 结果如下： 20200202 21111112 21211212 22111122 22200222 22211222 30300303 31111113 40400404 41111114 2111 - 2020 =‬ 91 也不是！！这才隔了91年！ 总结： 面对媒体的言论，要保持理智清醒的头脑！ 谢谢看官，溜了溜了 Only action can relieve the uneasiness.https://www.cnblogs.com/liangmingshen/p/12178189.html