线程_gevent自动切换CPU协程
import gevent
def f(n):
for i in range(n):
print (gevent.getcurrent(), i)
# gevent.getcurrent() 获取当前进程
g1 = gevent.spawn(f, 3)#函数名,数目
g2 = gevent.spawn(f, 4)
g3 = gevent.spawn(f, 5)
g1.join()
g2.join()
g3.join()
import gevent
def f(n):
for i in range(n):
print (gevent.getcurrent(), i)
#用来模拟一个耗时操作,注意不是time模块中的sleep
gevent.sleep(1)
g1 = gevent.spawn(f, 2)
g2 = gevent.spawn(f, 3)
g3 = gevent.spawn(f, 4)
g1.join()
g2.join()
g3.join()
import gevent
import random
import time
def coroutine_work(coroutine_name):
for i in range(10):
print(coroutine_name, i)
time.sleep(random.random())
gevent.joinall([
# 添加可以切换的协程
gevent.spawn(coroutine_work, "work0"),
gevent.spawn(coroutine_work, "work1"),
gevent.spawn(coroutine_work, "work2")
])
from gevent import monkey
import gevent
import random
import time
# 有耗时操作时需要
monkey.patch_all()#自动切换协程
# 将程序中用到的耗时操作的代码,换为gevent中自己实现的模块
def coroutine_work(coroutine_name):
for i in range(10):
print(coroutine_name, i)
time.sleep(random.random())
gevent.joinall([
gevent.spawn(coroutine_work, "work"),
gevent.spawn(coroutine_work, "work1"),
gevent.spawn(coroutine_work, "work2")
])
2020-05-07
本文来自博客园,作者:CodeYaSuo,转载请注明原文链接:https://www.cnblogs.com/hany-postq473111315/p/12845603.html