#变量E盘下的mp3文件，输出mp3文件的路径
import os
base=r'E:\\'
tag=['.txt']
def getmp3(root,label):
base_list = [os.path.normcase(i) for i in os.listdir(root) if i !='System Volume Information' ]
#print base_list
for i in base_list:
p=os.path.isdir(os.path.join(root,i))
if p:
getmp3(os.path.join(root,i),label) #递归调用
else:
if os.path.splitext(i)[1] in label:
print os.path.join(root,i)
getmp3(base,tag)