用户输入年份、月分，输出其对应的天数及九九乘法表。

1. 1 3 5 7 8 10 12 ------31天
2. 4 6 9 11 ---------30天
3. 2月 润29 平28

 Month_R=[1,3,5,7,8,10,12]
 Month_P=[4,6,9,11]
 Year=int(input("请输入年份:"))
 Month=int(input("请输入月份:"))
    if Year%4==0 and Year%100!=0 or Year%400==0:
     print(f"{Year}年是闰年！")
     if Month in Month_R:
         print(f"{Year}年{Month}月有31天！")
     elif Month in Month_P:
         print(f"{Year}年{Month}月有30天！")
     elif Month==2:
         print(f"{Year}年{Month}月有29天！")
     else:
      print("没有你所输入的月份！！！")
    else:
     print(f"{Year}年是平年！")
     if Month in Month_R:
         print(f"{Year}年{Month}月有31天！")
     elif Month in Month_P:
         print(f"{Year}年{Month}月有30天！")
     elif Month==2:
         print(f"{Year}年{Month}月有28天！")
     else:
         print("没有你所输入的月份！！！")

“”"

“”"

for i in range(1,10):
    for j in range(1,i+1):
        print(f"{j}","+",f"{i}","=",f"{i*j}",end="t")
    print()