gevent 简单运用

偏执的太偏执、 2021-11-15 13:26 320阅读 0赞

import gevent
    import time
    
    def f1(n):
        for i in range(n):
            print(gevent.getcurrent(), i)#获取当前执行的函数
            # print(i,'我来自F1')
            time.sleep(0.5)
            gevent.sleep(0.5)
    
    def f2(n):
        for i in range(n):
            print(gevent.getcurrent(), i)
            time.sleep(0.5)
            gevent.sleep(0.5)
    
    def f3(n):
        for i in range(n):
            print(gevent.getcurrent(), i)
            time.sleep(0.5)
            gevent.sleep(0.5)
    
    print("----1---")
    g1 = gevent.spawn(f1, 5)
    print("----2---")
    g2 = gevent.spawn(f2, 5)
    print("----3---")
    g3 = gevent.spawn(f3, 5)
    print("----4---")
    g1.join()
    g2.join()
    g3.join()

运行结果如下：

----1---
    ----2---
    ----3---
    ----4---
    <Greenlet at 0x103a17c48: f1(5)> 0
    <Greenlet at 0x103d38148: f2(5)> 0
    <Greenlet at 0x103d38248: f3(5)> 0
    <Greenlet at 0x103a17c48: f1(5)> 1
    <Greenlet at 0x103d38148: f2(5)> 1
    <Greenlet at 0x103d38248: f3(5)> 1
    <Greenlet at 0x103a17c48: f1(5)> 2
    <Greenlet at 0x103d38148: f2(5)> 2
    <Greenlet at 0x103d38248: f3(5)> 2
    <Greenlet at 0x103a17c48: f1(5)> 3
    <Greenlet at 0x103d38148: f2(5)> 3
    <Greenlet at 0x103d38248: f3(5)> 3
    <Greenlet at 0x103a17c48: f1(5)> 4
    <Greenlet at 0x103d38148: f2(5)> 4
    <Greenlet at 0x103d38248: f3(5)> 4

也可以：

import gevent
    import time
    
    def f1(n):
        for i in range(n):
            print(gevent.getcurrent(), i)#获取当前执行的函数
            # print(i,'我来自F1')
            time.sleep(0.5)
            gevent.sleep(0.5)
    
    def f2(n):
        for i in range(n):
            print(gevent.getcurrent(), i)
            time.sleep(0.5)
            gevent.sleep(0.5)
    
    def f3(n):
        for i in range(n):
            print(gevent.getcurrent(), i)
            time.sleep(0.5)
            gevent.sleep(0.5)
    
    gevent.joinall([gevent.spawn(f1,5),gevent.spawn(f2,5),gevent.spawn(f3,5),])

运行结果如下：

<Greenlet at 0x100a7fc48: f1(5)> 0
    <Greenlet at 0x100da0148: f2(5)> 0
    <Greenlet at 0x100da0248: f3(5)> 0
    <Greenlet at 0x100a7fc48: f1(5)> 1
    <Greenlet at 0x100da0148: f2(5)> 1
    <Greenlet at 0x100da0248: f3(5)> 1
    <Greenlet at 0x100a7fc48: f1(5)> 2
    <Greenlet at 0x100da0148: f2(5)> 2
    <Greenlet at 0x100da0248: f3(5)> 2
    <Greenlet at 0x100a7fc48: f1(5)> 3
    <Greenlet at 0x100da0148: f2(5)> 3
    <Greenlet at 0x100da0248: f3(5)> 3
    <Greenlet at 0x100a7fc48: f1(5)> 4
    <Greenlet at 0x100da0148: f2(5)> 4
    <Greenlet at 0x100da0248: f3(5)> 4

两种方式都可以，第二种方式比较节约代码，建议使用第二种方式

转载于:https://www.cnblogs.com/liangliangzz/p/11228257.html