相关疑难解决方法(0)

怎么if __name__ == "__main__":办？

# Threading example
import time, thread

def myfunction(string, sleeptime, lock, *args):
    while True:
        lock.acquire()
        time.sleep(sleeptime)
        lock.release()
        time.sleep(sleeptime)

if __name__ == "__main__":
    lock = thread.allocate_lock()
    thread.start_new_thread(myfunction, ("Thread #: 1", 2, lock))
    thread.start_new_thread(myfunction, ("Thread #: 2", 2, lock))

可能重复:
做if __name__=="__main__":什么？Python
中的主要功能和/或__name__ == "__main__"检查有什么意义？

我只是想了解为什么你使用__name__='__main__'语句如果我们可以运行任何python脚本,即使不使用该语句.例如,我可以在不使用if __name__='__main__'语句的情况下运行下面的脚本.

def hello():
      print "hello"
      return 1234

# And here is the function being used
print hello()