如何用栈来遍历目录

#导入os模块
import os
def getdir(path):
	stack=[]
	#入栈
	stack.append(path)
	while stack:
		#出栈
		path=stack.pop()
		filelist=os.listdir(path)
		#遍历目录
		for filename in filelist:
			#获取绝对路径
			abspath=os.path.join(path,filename)
			if os.path.isdir(absname):
				print("目录",filename)
				stack.append(abspath)
			else:
				print("文件",filename)
path=r"路径名"
getdir(path)