自动下载图片

前言

1、使用python自动从zol下载壁纸，比较简单，高手自动忽略。
2、没进行翻页的处理，只单纯down了一个页面的图片而已。
3、整体逻辑，解析缩略图页面，自动请求高清url并下载到本地。

源码

import requests, bs4, re

# 发起请求
def myUrlGet(url):
    try:
        res = requests.get(url)
        res.raise_for_status()
        return res
    except Exception as exc:
        print('get %s url failed: %s' % (url, exc))
        return

# 保存图片
def saveImgFile(filename, url):
    imgres = myUrlGet(url)
    if imgres != "" and len(imgres.content) > 0:
        try:
            imgFile = open(filename, 'wb')
        except Exception as exc:
            print('can not open file: %s' % (exc))
            return
        imgFile.write(imgres.content)

# 获取壁纸原始地址
def downZolImg(imgname, imgurl):
    imgres = myUrlGet(imgurl)
    if imgres != None:
        soup = bs4.BeautifulSoup(imgres.text)
        imgorig = soup.select('#bigImg')
        if len(imgorig) > 0:
            saveImgFile('img/' + imgname, imgorig[0].attrs['src'])

# 主处理逻辑
if __name__ == '__main__':
    zolurl = 'http://desk.zol.com.cn/'
    zolres = myUrlGet(zolurl + 'nb/')
    if zolres != None:
        zolsoup = bs4.BeautifulSoup(zolres.text)
        photoList = zolsoup.select('.photo-list-padding')
        photoNameRegex = re.compile(r'([^/]+)\.html')
        for photo in photoList:
            photourl = photo.contents[0].attrs['href']
            photoName = photoNameRegex.search(photourl).group(1) + '.jpg'
            print(photoName, zolurl + photourl)
            downZolImg(photoName, zolurl + photourl)

效果：