python爬虫---虎牙直播封面采集

代码：

import requests
from lxml import etree  # html解析库

source = requests.get("https://www.huya.com/g/4079").text
html = etree.HTML(source)
# 获取所有的<img class='pic'>的标签
pic_list = html.xpath("//img[@class='pic']")

for pic in pic_list:
    # 小图地址
    pic_src = pic.xpath("./@data-original")[0]
    # 大图地址
    big_pic_src = pic.xpath("./@data-original")[0].split("?")[0]
    # 获取图片名称
    name = pic.xpath("./@alt")[0]
    # 将图片写入本地
    image = requests.get(big_pic_src)
    # 写入本地
    with open("./美女/%s.jpg" % name, "wb") as file:
        file.write(image.content)
    print("<%s>保存成功！" % name)