python3实现多线程

 https://www.runoob.com/python3/python3-multithreading.html

 

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import _thread import time   # 为线程定义一个函数 def print_time( threadName, delay):    count = 0    while count < 5:       time.sleep(delay)       count += 1       print ("%s: %s" % ( threadName, time.ctime(time.time()) ))   # 创建两个线程 try:    _thread.start_new_thread( print_time, ("Thread-1", 2, ) )    _thread.start_new_thread( print_time, ("Thread-2", 4, ) ) except:    print ("Error: 无法启动线程")   while 1:    pass