# 保存文件(文本,图片,视频...)
 1 def save_file():

     url = 'http://css.8684.cn/citys/images/line/45.jpg'

     root = r'd:/pics/'

     path = root + url.split('/')[-1]

     try:

         if not os.path.exists(root):

             os.mkdir(root)

         if not os.path.exists(path):

             r = requests.get(url)

             with open(path, 'wb') as f:

                 f.write(r.content)

                 f.close()

                 print("文件保存成功")

         else:

             print("文件已存在")

     except:

         print("爬取失败")

 # 获取网页源码

 def get_html_text(url):

     try:

         r = requests.get(url, timeout=30)

         r.raise_for_status()   # 如果状态不是200,引发HTTPError 异常

         r.encoding = r.apparent_encoding

         return r.text

     except:

         return "产生异常"

# 获取IP
 1 def get_ip():

     url = 'http://www.ip138.com/ips1388.asp?ip='

     ip = '110.242.200.45'

     try:

         r = requests.get(url + ip)

         r.raise_for_status()

         r.encoding = r.apparent_encoding

         print(re.findall('<td align="center">(.*?)<br/><br/></td>', r.text))

     except:

         print("爬取失败")