import time

 import requests

 import os

 from bs4 import BeautifulSoup

 from selenium import webdriver

 class GetMuisc:

     def __init__(self):

         self.init_url = 'http://music.163.com/#/artist/album?id=101988&limit=120&offset=0'

         self.folder_path = r"C:\pythonProject\wangyi"

     def request(self, url):

         r = requests.get(url)

         return r

     def mkdir(self, path):

         path = path.strip()

         isExists = os.path.exists(path)

         if not isExists:

             print('创建名字叫做', path, '的文件夹')

             os.makedirs(path)

             print('创建成功！')

             return True

         else:

             print(path, '文件夹已经存在了，不再创建')

             return False

     def save_img(self, url, file_name):

         print("开始请求图片地址...")

         img = self.request(url)

         print('开始保存图片')

         with(open(file_name, "ab")) as ff:

             ff.write(img.content)

         print(file_name, '图片保存成功！')

         # f = open(file_name, "ab")

         # f.write(img.content)

         # f.close()

     def get_files(self, path):

         pic_name = os.listdir(path)

         return pic_name

     def spider(self):

         print("Start!")

         driver = webdriver.Chrome()

         driver.get(self.init_url)

         driver.switch_to.frame("g_iframe")

         iframe_html = driver.page_source

         driver.close()

         self.mkdir(self.folder_path)

         file_name = self.get_files(self.folder_path)

         os.chdir(self.folder_path)

         idstr = 'm-song-module'

         moduleHtml = BeautifulSoup(iframe_html, 'lxml').find(id=idstr)

         if moduleHtml is None:

             print("标签{}没有找到，请检查是否有问题。".format(idstr))

         else:

             all_li = moduleHtml.find_all('li')

             for li in all_li:

                 album_img = li.find("img")["src"]

                 album_name = li.find("p", class_="dec")["title"]

                 album_date = li.find("span", class_="s-fc3").get_text()

                 end_pos = album_img.index("?")

                 album_img_url = album_img[:end_pos]

                 photo_name = album_date + " - " + album_name.replace("/", "").replace(":", ",") + ".jpg"

                 print(album_img_url, photo_name)

                 if photo_name in file_name:

                     print('图片已经存在，不再重新下载')

                 else:

                     self.save_img(album_img_url, photo_name)

 album_cover = GetMuisc()

 album_cover.spider()