1 import _thread
2 import time
3
4 def print_time(threadName,delay):
5 count = 0
6 while count < 5:
7 time.sleep(delay)
8 count += 1
9 print('{0}: {1}'.format(threadName,time.ctime(time.time())))
10
11 try:
12 _thread.start_new_thread(print_time,('Thread-1',2,))
13 _thread.start_new_thread(print_time,('Thread-2',4,))
14 except:
15 print('Error')
16 while 1:
17 pass
1 # 3-线程同步
2 import threading
3 import time
4 class myThread(threading.Thread):
5 def __init__(self,threadID,name,counter):
6 threading.Thread.__init__(self)
7 self.threadID = threadID
8 self.name = name
9 self.counter = counter
10 def run(self):
11 print('开启线程： ' + self.name)
12 threadLock.acquire()
13 print_time(self.name,self.counter,3)
14 threadLock.release()
15
16 def print_time(threadName,delay,counter):
17 while counter:
18 time.sleep(delay)
19 print('{} :{}'.format(threadName,time.ctime(time.time())))
20 counter -=1
21
22 threadLock = threading.Lock()
23 threads = []
24
25 thread1 = myThread(1,'Thread-1',1)
26 thread2 = myThread(2,'Thread-2',2)
27
28 thread1.start()
29 thread2.start()
30
31 threads.append(thread1)
32 threads.append(thread2)
33
34 for t in threads:
35 t.join()
36 print('退出主线程')
1 # 线程优先级队列
2 import queue
3 import threading
4 import time
5
6 exitFlag = 0
7
8 class myThread (threading.Thread):
9 def __init__(self,threadID,name,q):
10 threading.Thread.__init__(self)
11 self.thredID = threadID
12 self.name = name
13 self.q = q
14 def run(self):
15 print('开启线程：' + self.name)
16 process_data(self.name,self.q)
17 print('退出线程： ' + self.name)
18 def process_data(threadName,q):
19 while not exitFlag:
20 queueLock.acquire()
21 if not workQueue.empty():
22 data = q.get()
23 queueLock.release()
24 print('{}: {}'.format(threadName,data))
25 else:
26 queueLock.release()
27 time.sleep(1)
28
29 threadList = ['Thread-1','Thread-2','Thread-3']
30 nameList = ['One','Two','Three','Four','Five']
31 queueLock = threading.Lock()
32 workQueue = queue.Queue(10)
33 threads = []
34 threadID = 1
35
36 for tName in threadList:
37 thread = myThread(threadID,tName,workQueue)
38 thread.start()
39 threads.append(thread)
40 threadID += 1
41
42 queueLock.acquire()
43 for word in nameList:
44 workQueue.put(word)
45 queueLock.release()
46
47 while not workQueue.empty():
48 pass
49
50 exitFlag = 1
51
52 for t in threads:
53 t.join()
54 print('退出主鼎城')
1 # 使用threading模块创建线程
2 import threading
3 import time
4
5 exitFlag = 0
6 class myThread(threading.Thread):
7 def __init__(self,threadID,name,counter):
8 threading.Thread.__init__(self)
9 self.threadID = threadID
10 self.name = name
11 self.counter = counter
12 def run(self):
13 print('开始线程： '+ self.name)
14 print_time(self.name,self.counter,5)
15 print('tichuxiancheng') + self.name
16
17 def print_time(threadName,delay,counter):
18 while counter:
19 if exitFlag:
20 threadName.exit()
21 time.sleep(delay)
22 print('{}:{}'.format(threadName,time.ctime(time.time())))
23
24
25 thread1 = myThread(1,'Thread-1',1)
26 thread2 = myThread(2,'Thread-2',2)
27
28 thread1.start()
29 thread2.start()
30 thread1.join()
31 thread2.join()
32 print('退出主线程')
