python ：用@asyncio.coroutine装饰器生成的对象是一个生成器对象 但不是协程对象
用async 定义的函数对象不是一个生成器，但是一个协程对象
import asyncio
from collections.abc import Coroutine,Generator
@asyncio.coroutine
def fun():
print('sssss')
async def fun1():
#yield 10
print('end')
if __name__=='__main__':
fun=fun()
fun1=fun1()
print(type(fun))
print(isinstance(fun, Generator))
print(isinstance(fun,Coroutine))
print(type(fun1))
print(isinstance(fun1, Generator))
print(isinstance(fun1,Coroutine))
##
<class 'generator'>
True
False
<class 'coroutine'>
False
Trueimport asyncio
async def fun(tm):
await asyncio.sleep(tm)
print('hello>>>>>>>>%s'%tm)
return 'sleep %s second'%tm
def callback(future):
print('result-----%s'%(future.result()))
if __name__=='__main__':
fun=fun(2)
loop=asyncio.get_event_loop()
task=asyncio.ensure_future(fun)#loop.create_task(fun)
task.add_done_callback(callback) ##此定义一个回调 接收协程执行结果 与最后一行功能一亲
loop.run_until_complete(task)
#print(task.result())import asyncio
async def fun(tm):
print('wait>>>>>>>>%s'%tm)
await asyncio.sleep(tm)
return 'sleep %s second'%tm
def callback(future):
print('result-----%s'%(future.result()))
if __name__=='__main__':
# fun=fun(2)
# loop=asyncio.get_event_loop()
# task=asyncio.ensure_future(fun)#loop.create_task(fun)
# task.add_done_callback(callback) ##此定义一个回调 接收协程执行结果 与最后一行功能一亲
# loop.run_until_complete(task)
#print(task.result())
loop = asyncio.get_event_loop()
dolist=[asyncio.ensure_future(fun(i)) for i in range(2,6)]
loop.run_until_complete(asyncio.wait(dolist))
for tk in dolist:
print(tk.result())