python目录操作读取目录中文件的文件名

#!/usr/bin/env python
#
import os
def ListFilesToTxt(dir,file,wildcard,recursion):
    exts = wildcard.split(" ")
    files = os.listdir(dir)
    for name in files:
        fullname=os.path.join(dir,name)
        if(os.path.isdir(fullname) & recursion):
            ListFilesToTxt(fullname,file,wildcard,recursion)
        else:
            for ext in exts:
                if(name.endswith(ext)):
                    file.write(name + "n")
                    break
def Test():
  dir="J:1"
  outfile="binaries.txt"
  wildcard = ".txt .exe .dll .lib"
 
  file = open(outfile,"w")
  if not file:
    print ("cannot open the file %s for writing" % outfile)
  ListFilesToTxt(dir,file,wildcard, 1)
 
  file.close()
Test()

#!/usr/bin/env python
#
import os
def ListFilesToTxt(dir,file,wildcard,recursion):
    exts = wildcard.split(" ")
    for root, subdirs, files in os.walk(dir):
        for name in files:
            for ext in exts:
                if(name.endswith(ext)):
                    file.write(name + "n")
                    break
        if(not recursion):
            break
def Test():
  dir="J:1"
  outfile="binaries.txt"
  wildcard = ".txt .exe .dll .lib"
 
  file = open(outfile,"w")
  if not file:
    print ("cannot open the file %s for writing" % outfile)
  ListFilesToTxt(dir,file,wildcard, 0)
 
  file.close()
Test()