生成器

# __author: "ZXYang"
# date: 2020/12/12

"""

yield

生成器表达式：send, close, throw

aa.close()
print(aa.throw(ValueError))

"""

# a = (i*2 for i in range(10))
#
# # print(a)
# print(next(a))
# print(next(a))
# print(next(a))
# print(next(a))
# print(next(a))
# 0
# 2
# 4
# 6
# 8


def bar():
    print('001')
    count = yield 1
    print(count)
    cc = yield 2
    print(cc)

    yield 3

s = bar()
next(s)
# next(s)
# next(s)
s.send(None)
s.send("333")
s.send('44')