18 11 20 网络通信 ----多任务---- 携程 ----生成器

def creat_num (all_numbers):
    a, b = 0, 1
    current_num = 0
    while current_num <= all_numbers:
        current_num += 1
        print(a)
        a , b = b ,a+b

list1 = creat_num(10)

def creat_nmber (all_nubmers):
    a ,b = 0, 1
    current_number = 0
    while current_number < all_nubmers:
        ret = yield a
        print ("======>",ret)
        a, b = b ,a+b
        current_number += 1

obj = creat_nmber(10)

ret = next(obj)  # 默认从yield开始执行 想要一个生成一个
print(ret)

ret = obj.send("hahhaah")  # 发送东西给yield后面的参数   可用来更改后面参数的值 并且继续执行一次
print(ret)

def text1 ():
    while True:
        print(1)
        yield
def text2 ():
    while True:
        print(2)
        yield

def main():
    while True:
        next(text1())
        next(text2())
if __name__ == ‘__main__‘:
    main()