def is_leap(year): year = int(year) return year % 400 == 0 or (year%4==0 and year%100!=0) for i in range(5): temp = input('输入你想要的年份') while not temp.isdigit(): temp = input("请输入整数") if is_leap(temp): print(temp+'是闰年') else: print(temp+'不是闰年')