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))

我是Python新手,但我有其他OOPS语言的经验.我的课程没有解释python中的主要方法.

请告诉我python中main方法的工作原理？我很困惑,因为我试图将它与Java进行比较.

def main():
# display some lines

if __name__ == "__main__": main()

主要如何执行,为什么我需要这个奇怪if的执行main.当我删除时,我的代码终止而没有输出if.

最小的代码 -

class AnimalActions:
    def quack(self): return self.strings['quack']
    def bark(self): return self.strings['bark']

class Duck(AnimalActions):
    strings = dict(
        quack = "Quaaaaak!",
        bark = "The duck cannot bark.",
    )


class Dog(AnimalActions):
    strings = dict(
        quack = "The dog cannot quack.",
        bark = "Arf!",
    )

def in_the_doghouse(dog):
    print(dog.bark())

def in_the_forest(duck):
    print(duck.quack())

def main():
    donald = Duck()
    fido = Dog()

    print("- In the forest:") …