Python开启线程,在函数中开线程的实例

#coding=utf-8
import threading

class Test:
  __init = 1

  def __init__(self):
    self.__sem = threading.Semaphore(value=5)#初始化信号量，最大并发数
    return

  def handle(self, data):
    #开启线程，传入参数
    _thread = threading.Thread(target=self.__run, args=(data,))
    _thread.setDaemon(True)
    _thread.start()#启动线程
    return

  def __run(self, data):
    self.__sem.acquire()#信号量减1
    self.__init +=data
    print(self.__init)
    self.__sem.release()#信号量加1
    return

if __name__=="__main__":
  test = Test()
  test.handle(1)
  print("end")