从 s = "我爱北京天安门" 中悟道了-----------迭代器操作print(c.__next__())的最!大!好!处!-----------------------------------------------------可以一个一个输出

s = "我爱北京天安⻔"
c = s.__iter__()     # 获取迭代器
# print(c)    #  打印迭代器的地址
# print(c.__next__())                 # 打印迭代器中的下一个
# print(c.__next__())
# print(c.__next__())
# print(c.__next__())
# print(c.__next__())
# print(c.__next__())
# print(c.__next__())

# 所以迭代器操作print(c.__next__())的最!大!好!处!可以一个一个输出,不写就不输出


for i in s:
    print(i)   #  for 遍历一下子全出来了,会占内存