用python寫的一個小腳本，刪除非空目錄和文件，代碼如下：
 
#!/usr/bin/python
#encoding=utf8
import os,sys
if len(sys.argv) > 1:
        for filename in sys.argv[1:]:
                if os.path.isdir(filename):
                        for root, dirs, files in os.walk(filename,topdown=False):
                                for name in files:
                                        os.remove(os.path.join(root, name))
                                        print  os.path.join(root,name)
                                for name in dirs:
                                        os.rmdir(os.path.join(root, name))
                                        print "delete %s" % (os.path.join(root,name))
                        os.rmdir(filename)
                else:
                        os.remove(filename)
else:
        print "使用方法：rm.py filename1 filename2....."
原理很簡單用os.walk函數遍歷目錄，topdown=False就是這個指定從下到上遍歷，如果不設置或者設置topdown=True，則是從上到下遍歷。

本來還想自己實現遍歷目錄的函數呢，結果python已經提供了，這樣就方便多了