kongkongruye

一行 Python 实现树

使用 Python 内置的 defaultdict，我们可以很容易的定义一个树形数据结构：

def tree(): return defaultdict(tree)

就是这样！

	import argpase
	import fileinput

	if __name__ == '__main__':
	parser = ArgumentParser()
	parser.add_argument('--dummy', help='dummy argument')
	parser.add_argument('files', metavar='FILE', nargs='*', help='files to read, if empty, stdin is used')
	args = parser.parse_args()

	# If you would call fileinput.input() without files it would try to process all arguments.

	// Use Gists to store code you would like to remember later on
	console.log(window); // log the "window" object to the console