#串行执行
# import time
#
# def func1():
#     for i in range(10000000):
#         i+1
#
# def func2():
#     for i in range(10000000):
#         i+1
#
# start = time.time()
# func1()
# func2()
# stop = time.time()
# print(stop - start)

#基于yield并发执行
# import time
# def func1():
#     while True:
#         print('func1')
#         yield
#
# def func2():
#     g=func1()
#     for i in range(10000000):
#         print('func2')
#         i+1
#         time.sleep(3)
#         next(g)
#
#
# start=time.time()
# func2()
# stop=time.time()
# print(stop-start)

#1. 可以控制多个任务之间的切换，切换之前将任务的状态保存下来，以便重新运行时，可以基于暂停的位置继续执行。#2. 作为1的补充：可以检测io操作，在遇到io操作的情况下才发生切换

#pip3 install gevent
# from gevent import monkey,spawn;monkey.patch_all()
# import time
#
# def eat(name):
#     print('%s eat 1' %name)
#     time.sleep(3)
#     print('%s eat 2' %name)
#
# def play(name):
#     print('%s play 1' %name)
#     time.sleep(1)
#     print('%s play 2' %name)
#
# start=time.time()
# g1=spawn(eat,'egon')
# g2=spawn(play,'zmy')
#
# g1.join()
# g2.join()
# print(time.time() - start)
# print(g1)
# print(g2)from gevent import monkey,spawn;monkey.patch_all()
from threading import current_thread
import timedef eat():print('%s eat 1' %current_thread().name)time.sleep(3)print('%s eat 2' %current_thread().name)def play():print('%s play 1' %current_thread().name)time.sleep(1)print('%s play 2' %current_thread().name)g1=spawn(eat,)
g2=spawn(play,)print(current_thread().name)
g1.join()
g2.join()