The if __name__ == "__main__" block in Python allows you to define code that will only run when the file is executed directly as a script, but not when it's imported as a module into another script.
int(1),1)-datetime.timedelta(days=1)else:d2=datetime.date(int(argv[1]),int(argv[2])+1,1)-datetime.timedelta(days=1)print((d2-d1).days)if__name__=='__main__':iflen(sys.argv)!
The name of the script you are running is always in sys.argv[0]. In this script, our other arguments are our host and the port we want to connect. If those arguments are absent, we want to throw an error and exit the script. Python lets us do this in one line. The return code...
我们经常做单元测试使用的机制 if __name__ == '__main__' ,表明作为主程序运行的Python 源文件可以被视为名为 __main__ 的 module,当然以 import py 方式加载,则__name__ 不会为 __main__。在初始化 __main__ module 时会将('__builtins__', __builtin__ module)插入到其 dict 中。也就...
Python if __name__ == “__main__”: Explain? Use For Loop to Iterate Tuple in Python Check If the Set is Empty in Python Python min() Function Get the First Element of a Tuple in Python Python List of Tuples into Dictionary ...
if __name__ == ‘__main__’: main() After returning the banner, our script needs to check this banner against some known vulnerable programs. This also reflects a single, related function. The function checkVulns() takes the variable banner as a parameter and then uses it to make a ...
#方式一 from threading import Thread import time def sayhi(name): time.sleep(2) print('%s say hello' %name) if __name__ == '__main__': t=Thread(target=sayhi,args=('egon',)) t.start() print('主线程') 方式二 #方式二 from threading import Thread import time class Sayhi(Thread...
if __name__ == '__main__': print(1) else: print(2) main() 将该程序文件直接运行时输出结果为___,作为模块导入时得到结果___-。(1、2) 下面程序的执行结果是___。(1) s = 0 for i in range(1,101): s += i else: print(1) 下面程序的执行结果是___。(1275) s = 0 for i...
classTest(object):num_of_instance=0def__init__(self,name):self.name=nameTest.num_of_instance+=1if__name__=='__main__':printTest.num_of_instance# 0t1=Test('jack')printTest.num_of_instance# 1t2=Test('lucy')printt1.name ,t1.num_of_instance# jack 2printt2.name ,t2.num_of_...
right) if __name__ == '__main__': lookup(tree) deep(tree) 17 前中后序遍历 深度遍历改变顺序就OK了 #coding:utf-8 #二叉树的遍历 #简单的二叉树节点类 class Node(object): def __init__(self,value,left,right): self.value = value self.left = left self.right = right #中序遍历...