python学习笔记（五）字典和集合

d = dict(one=1,two=2)
print(d.items()) # dict_items([('one', 1), ('two', 2)])
d.update(one="一",two="二")
print(d.items()) # dict_items([('one', '一'), ('two', '二')])

# 注意此方法可能会导致元素的顺序改变
list1 = [1,3,2,4,1,2]
print(list1)  # [1, 3, 2, 4, 1, 2]
list1 = list(set(list1))
print(list1) # [1, 2, 3, 4]