‘’‘生成器send的使用’’’
‘’‘如果使用send函数唤醒生成器,第一次调用send的时候，传入的值为None’’’
‘’‘一般情况下会使用next()唤醒第一次’’’
def fibo(num):
a=0
b=0
current_index = 0
# print(‘cccccccccccccccccccccccccccccccccc’)
while current_index < num:
result = a
a,b = b,a+b
current_index += 1
# print(‘aaaaaaaaaaaaaaaaaaaaaaa’)
prarms = yield result#返回a
print(‘参数是:’,prarms)
#prarms 是指生成器接收的参数,send传递的参数
# print(‘bbbbbbbbbbbbbbbbbbbbbbb’)
# return ‘ok’
if name == ‘main’:
ret=fibo(5)
print(next(ret))
print(ret.send(None))
print(ret.send(1))
print(ret.send(2))
print(ret.send(3))