mirror of https://github.com/Black-Gold/Learn
You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
56 lines
1.2 KiB
56 lines
1.2 KiB
# Python多线程例子来示例加线程锁
|
|
# 1。使用线程定义一个子类。线程类
|
|
# 2。实例化子类并触发线程
|
|
# 3。在线程的运行方法中实现锁
|
|
|
|
import threading
|
|
import datetime
|
|
|
|
exitFlag = 0
|
|
|
|
|
|
class myThread(threading.Thread):
|
|
def __init__(self, name, counter):
|
|
threading.Thread.__init__(self)
|
|
self.threadID = counter
|
|
self.name = name
|
|
self.counter = counter
|
|
|
|
def run(self):
|
|
print("\n开始 " + self.name)
|
|
# Acquire lock to synchronize thread
|
|
threadLock.acquire()
|
|
print_date(self.name, self.counter)
|
|
# Release lock for the next thread
|
|
threadLock.release()
|
|
print("退出 " + self.name)
|
|
|
|
|
|
def print_date(threadName, counter):
|
|
datefields = []
|
|
today = datetime.date.today()
|
|
datefields.append(today)
|
|
print("{}[{}]: {}".format(threadName, counter, datefields[0]))
|
|
|
|
|
|
threadLock = threading.Lock()
|
|
threads = []
|
|
|
|
# Create new threads
|
|
thread1 = myThread("线程", 1)
|
|
thread2 = myThread("线程", 2)
|
|
|
|
# Start new Threads
|
|
thread1.start()
|
|
thread2.start()
|
|
|
|
# Add threads to thread list
|
|
threads.append(thread1)
|
|
threads.append(thread2)
|
|
|
|
# Wait for all threads to complete
|
|
for thread in threads:
|
|
thread.join()
|
|
|
|
print("\n退出程序!!!")
|