批量处理文件的Python程序

#coding=utf-8
import sys,os ,shutil
import struct
import glob
import time
import subprocess


def amplify_wav(file_name):
    command=‘c:\\tools\\sox\\sox.exe {} {} gain 12‘.format(file_name,file_name.replace(‘.wav‘,‘-processed.wav‘))
    print(command)
    os.system(command)

def process_file(file_name):
    if not file_name.endswith(‘.wav‘):
        return;
    amplify_wav(file_name)

def process_dir(folder):
    for sub_node in glob.glob ( folder+‘/*‘ ):
        if os.path.isdir(sub_node):
            process_dir(sub_node)
        else:
            process_file(sub_node)

node=sys.argv[1]
if os.path.isdir(node):
    process_dir(node)
    for pcm_file in glob.glob ( node+‘/*‘ ):
        process_file(pcm_file)
if os.path.isfile(node):
    with open(node, ‘r‘) as file_to_read:
        for line in file_to_read.readlines():
            process_file(line)