day33 python之多執行緒

1.多執行緒例項

#

import threading
#import time##
import
threading
import
time
class
mythread(threading.thread):
def__init__
(self,num):
threading.thread.
__init__
(self)
self.num =num
defrun(self):
print("
running on number:%s
"%self.num)
time.sleep(3)
if__name__ == '
__main__':
t1 = mythread(1)
t2 = mythread(2)
t1.start()
t2.start()
print("
ending")
#class mythread(threading.thread):
#def __init__(self, num):
#threading.thread.__init__(self)
#self.num = num##
def run(self):  # 定義每個執行緒要執行的函式##
print("running on number:%s" % self.num)##
time.sleep(3)##
#if __name__ == '__main__':
#t1 = mythread(1)
#t2 = mythread(2)
#t1.start()
#t2.start()##
print("ending......")

2.join

#

import threading
#import time##
#def music():
#print("begin to listen %s"%time.ctime())
#time.sleep(3)
#print("stop to listen %s" % time.ctime())##
#def game():
#time.sleep(4)
#t3=threading.thread(target=music)
#t3.start()##
print("begin to play game %s"%time.ctime())
#time.sleep(5)
#print("stop to play game %s" % time.ctime())##
#if __name__ == '__main__':##
t1=  threading.thread(target=music)##
t2 = threading.thread(target=game)##
t1.start()
#t2.start()##
t1.join()
#t2.join()##
print("ending")##
import threading
#from time import ctime,sleep
#import time##
def listenmusic(name):##
print ("begin listening to %s. %s" %(name,ctime()))
#sleep(3)
#print("end listening %s"%ctime())##
def recordblog(title):##
print ("begin recording the %s! %s" %(title,ctime()))
#sleep(5)
#print('end recording %s'%ctime())##
threads = ##
t1 = threading.thread(target=listenmusic,args=('水手',))
#t2 = threading.thread(target=recordblog,args=('python執行緒',))##
##if __name__ == '__main__':
##t1.setdaemon(true)
#t2.setdaemon(true)##
for t in threads:
##t.setdaemon(true) #注意:一定在start之前設定
#t.start()
#print(t.getname())
#print("count:",threading.active_count())
##t.join()#序列
##t.join()##
#t1.join()
##t1.setdaemon(true)##
#t2.join()########考慮這三種join位置下的結果？##
while threading.active_count()==1:##
print ("all over %s" %ctime())
#呼叫方式2：#######################################
#import threading
#import time
#import
threading
import
time
class
mythread(threading.thread):
def__init__
(self,num):
threading.thread.
__init__
(self)
self.num =num
defrun(self):
print("
running on number:%s
"%self.num)
time.sleep(3)
if__name__ == '
__main__':
t1 = mythread(1)
t2 = mythread(2)
t1.start()
t2.start()
print("
ending")
#class mythread(threading.thread):##
def __init__(self, num):
#threading.thread.__init__(self)
#self.num = num##
def run(self):  # 定義每個執行緒要執行的函式##
print("running on number:%s" % self.num)##
time.sleep(3)##
if __name__ == '__main__':##
t1 = mythread(1)
#t2 = mythread(2)
#t1.start()
#t2.start()
#print("ending......")

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