6. 遍历文件夹

import os

for parent,dirnames,filenames in os.walk("D:\\test"):

    for dirname in  dirnames:

        print("parent is:" + parent)

        print ("dirname is" + dirname)

    for filename in filenames:

        print("parent is:" + parent)

        print("filename is:" + filename)

        print("the full name of the file is:" + os.path.join(parent,filename))

    //加break为单层遍历，否则全部遍历

    break