本工具是通过将图片上传到第三方网站tinypng，进行压缩后下载，覆盖本地图片，tinypng是一个强大的图片处理网站，目前最可靠的无损压缩网站。

  代码如下：

import requests
from idna import unicode
from selenium import webdriver
import time
import os

browser = webdriver.Firefox(executable_path='/Users/lyf/Library/Google/geckodriver')



def tiny_png(url):
    # browser.get('https://tinypng.com/')
    upload_file = browser.find_element_by_tag_name("input")
    try:
        upload_file.send_keys(url)
        browser.implicitly_wait(20)
        a = browser.find_element_by_link_text('download')
        img_url = a.get_attribute('href')
        print(img_url)
        r = requests.get(img_url)
        with open(url, 'wb') as f:
            f.write(r.content)
        browser.refresh()
        time.sleep(2)
    except Exception as e:
        print(e)


def is_need_compress(img_path):
    """
    判断是否需要压缩处理 >10k 进行压缩处理
    :param img_path:
    :return:
    """
    if img_path.endswith('.jpg') or img_path.endswith('.png'):
        size = os.path.getsize(img_path) / 1024
        if size > 10.0:
            print('文件大小:%sk' % size)
            return True
    return False


def file_loop(file_path):
    """
    遍历文件夹
    :param file_path:
    :return:
    """
    files = os.listdir(file_path)
    for fi in files:
        fi_d = os.path.join(file_path, fi)
        if os.path.isdir(fi_d):
            file_loop(fi_d)
        else:
            child_path = os.path.join(file_path, fi_d)
            print(child_path)
            if is_need_compress(child_path):
                tiny_png(child_path)


if __name__ == "__main__":
    file_path = "/Users/lyf/AndroidStudioProjects/fubei/new-fubei-android-2.5-up/app/src/main/assets/www/assets"
    browser.get('https://tinypng.com/')
    file_loop(file_path)