第十节 next和send取生成器的值

# def create_num(all_num):
#     a, b = 0, 1
#     current_num = 0
#     while current_num <= all_num:
#         yield a
#         a, b = b, a+b
#         current_num += 1
#     return 'ok....'
#
# obj = create_num(2)
#
# while True:
#     try:
#         ret = next(obj)
#         print(ret)
#     except Exception as a:
#         print(a.value)    #用来捕获有return返回值的时候
#         break

def create_num(all_num):
    a, b = 0, 1
    current_num = 0
    while current_num <= all_num:
        a = yield a
        print('yield a 的返回值：', a)
        a, b = b, a+b
        current_num += 1
    return 'ok....'

obj = create_num(10)

ret = next(obj)
print(ret)

ret = obj.send(5)
print(ret)

ret = obj.send(5)
print(ret)