varl=input("请输入一个数:")
var2=var1+'0'
var3=int(var2)+3
print(float(var3))
score=int(input("请输入分数:"))
if score<=100 and score>=00:
if score>=90:
print("优秀")
elif score>=75:
print("良好")
elif score>=60:
print("合格")
else:
print("不合格")
print("分数不对")
list_num=[1,3,5]
list_str=[str(i) for i in list_num]
print(list_str)
list1=[6,3,2,5]
list2=[5,3,7,3]
list3=list(set(list1+list2))
print(list3)
def fun(n):
a, b=0,1
while a < n:
print(a, end=' ')
a, b=b, a+b
fun(5)
①是,②是,③是,④是,⑤是。