Python 批量处理特定格式文件

 #批量对文件夹下的'.mat'进行处理

 def file_name(file_dir,suff):
   L=[]
   for root, dirs, files in os.walk(file_dir):
     for file in files:
       if os.path.splitext(file)[1] == suff:
         L.append(os.path.join(root, file))
   return L

 #调用
 file_dir='D:\sa'
 suff='.mat'
 L=[]
 L=file_name(file_dir,suff)