面试题

a =1, b = 2用一行代码改变a,b值

a = 1
b = 2
a,b = b,a
print(a,b)

 #元祖  如果元祖里面只有一个元素且不加,那此元素是什么类型，就是什么类型。

# tu1 = (1)
# tu2 = (1,)
# print(tu1,type(tu1))
# print(tu2,type(tu2))
# tu1 = ([1])
# tu2 = ([1],)
# print(tu1,type(tu1))
# print(tu2,type(tu2))

 #去重

# li = [1,2,33,33,2,1,4,5,6,6]
# set1 = set(li)
# # print(set1)
# li = list(set1)
# print(li)
# s1 = {1,2,3}
# print(s1,type(s1))