weixin_42538734的博客

iterator(迭代器)for i in range： 就是一个迭代特点有序 下一个Iterable Iter能被迭代的类型：有序 list tuple Str（字符串）无序 set dict btyes#基础语法mylist = [1,2,3,4]it = iter(mylist)print(next(it)) # 1print(next(it)) # 2print(next(it)) # 3print(next(it)) # 4print(ne