python多任务-线程

import time
import threading


def sing(temp):
    for i in range(5):
        print("------sing------")
        time.sleep(1)
a=1

def dance(temp):
    for i in range(5):
        print("-------dance--------")
        time.sleep(1)


def main():
    #创建线程
    t1 = threading.Thread(target=sing,args= a)
    t2 = threading.Thread(target=dance)
    #执行线程
    t1.start()
    t2.start()
    #查看线程列表
    print(threading.enumerate()) 
    #线程共享全局变量
    #args传递参数

if __name__ == '__main__':
    main()

---

自动运行

import threading

class AutoThread(threading.Thread):

    def run(self):
        print('call!!!')



if __name__ == '__main__':
    a = AutoThread
    a.start()

---

threading中定义了lock

#创建锁
mutex = treading.Lock()
#锁定
mutex.acquire()
#解锁
mutex.release()