# __author: "ZXYang"
# date: 2020/5/13
import threading


class MyThread(threading.Thread):

    def __init__(self):
        threading.Thread.__init__(self)
        # self.num = num

    def s(self):
        lock.acquire()
        print('aaa')
        lock.acquire()
        print('bbb')
        lock.release()
        lock.release()

    def t(self):
        lock.acquire()
        print('aaa')
        lock.acquire()
        print('bbb')
        lock.release()
        lock.release()

    def run(self):
        self.s()
        self.t()


if __name__ == '__main__':

    lock = threading.RLock()

    threads = []
    for i in range(10):
        threads.append(MyThread())

    for t in threads:
        t.start()