python多線程之事件Event的使用詳解

# coding:utf-8

import threading
import time

event = threading.Event()


def chihuoguo(name):
  # 等待事件，進(jìn)入等待阻塞狀態(tài)
  print '%s 已經(jīng)啟動(dòng)' % threading.currentThread().getName()
  print '小伙伴 %s 已經(jīng)進(jìn)入就餐狀態(tài)！'%name
  time.sleep(1)
  event.wait()
  # 收到事件后進(jìn)入運(yùn)行狀態(tài)
  print '%s 收到通知了.' % threading.currentThread().getName()
  print '小伙伴 %s 開始吃咯！'%name

# 設(shè)置線程組
threads = []

# 創(chuàng)建新線程
thread1 = threading.Thread(target=chihuoguo, args=("a", ))
thread2 = threading.Thread(target=chihuoguo, args=("b", ))

# 添加到線程組
threads.append(thread1)
threads.append(thread2)

# 開啟線程
for thread in threads:
  thread.start()

time.sleep(0.1)
# 發(fā)送事件通知
print '主線程通知小伙伴開吃咯！'
event.set()

# coding:utf-8

import threading
import time

event = threading.Event()


def chiHuoGuo(name):
  # 等待事件，進(jìn)入等待阻塞狀態(tài)
  print '%s 已經(jīng)啟動(dòng)' % threading.currentThread().getName()
  print '小伙伴 %s 已經(jīng)進(jìn)入就餐狀態(tài)！'%name
  time.sleep(1)
  event.wait()
  # 收到事件后進(jìn)入運(yùn)行狀態(tài)
  print '%s 收到通知了.' % threading.currentThread().getName()
  print '%s 小伙伴 %s 開始吃咯！'%(time.time(), name)


class myThread (threading.Thread):  # 繼承父類threading.Thread
  def __init__(self, name):
    '''重寫threading.Thread初始化內(nèi)容'''
    threading.Thread.__init__(self)

    self.people = name

  def run(self):  # 把要執(zhí)行的代碼寫到run函數(shù)里面 線程在創(chuàng)建后會(huì)直接運(yùn)行run函數(shù)
    '''重寫run方法'''

    chiHuoGuo(self.people)   # 執(zhí)行任務(wù)
    print("qq交流群：226296743")
    print("結(jié)束線程: %s" % threading.currentThread().getName())

# 設(shè)置線程組
threads = []
# 創(chuàng)建新線程
thread1 = myThread("a")
thread2 = myThread("b")
thread3 = myThread("c")

# 添加到線程組
threads.append(thread1)
threads.append(thread2)
threads.append(thread3)

# 開啟線程
for thread in threads:
  thread.start()

time.sleep(0.1)
# 發(fā)送事件通知
print '集合完畢，人員到齊了，開吃咯！'
event.set()