需要獲取的頁面:

參考了此處，做了修改，代碼如下：

 1 #coding:utf-8  2 import urllib2  3 import urllib  4 import re  5 import sys  6 import os  7 import time  8  9  10 class Yinyuetai():  11  12 #地址初始化  13 def __init__(self, url):  14 self.i = 1  15 self.url = url  16 self.headers = {  17 'User-Agent':'Mozilla/5.0 (Windows NT 6.3) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/39.0.2171.95 Safari/537.36',  18 'Accept':'text/html,application/xhtml+xml,application/xml;q=0.9,image/webp,*/*;q=0.8'  19  }  20 self.timeout = 30  21 self.__init()  22  23  24 def __init(self, page=1):  25 print u"開始下載：第 %d 頁 ..." % page  26 reurl = self.url + "&page=%d" %page  27 page = self.getPage(reurl)  28 mvPageList = self.__getMvPageList(page)  29 if len(mvPageList) > 0:  30 for plist in mvPageList:  31 mvlist = self.getMvURL(plist)  32 self.downLoad(mvlist[0], mvlist[1].decode("utf-8"))  33 self.i += 1  34 time.sleep(2)  35 page += 1  36 self.__init(page)  37 else:  38 print u"\n~~~~~~~~~~~完成！~~~~~~~~~~~~~~"  39  40  41  42 #獲取指定頁面源碼  43 def getPage(self, url):  44 try:  45 request = urllib2.Request(url, None, self.headers)  46 response = urllib2.urlopen(request, None, self.timeout)  47 return response.read()  48 except:  49 return []  50  51 #分析列表頁，返回MV地址和名字列表[0]:視頻ID[1]:視頻名稱  52 def __getMvPageList(self, page):  53 reg = r"<h3><a\shref=\"http:\/\/v.yinyuetai.com\/video\/([0-9]+)\".*title=\"(.*)\".*"  54 pattern = re.compile(reg)  55 findList = re.findall(pattern, page)  56 return findList  57 #print findList  58  59  60  61 def getMvURL(self, mvlist):  62 url = "http://www.yinyuetai.com/insite/get-video-info?flex=true&videoId=%d" % int(mvlist[0])  63 html = self.getPage(url)  64  65 reg = r"http://\w*?\.yinyuetai\.com/uploads/videos/common/.*?(?=&br)"  66 pattern=re.compile(reg)  67 findList = re.findall(pattern, html)  68  69 if len(findList) >= 3:  70 return [findList[2], mvlist[1]]  71 else:  72 return [findList[0], mvlist[1]]  73  74  75 #end def  76  77 #下載文件  78 def downLoad(self, url, name):  79 name = name + '.flv'  80 print u"下載：[%s] [%d]" % (name, self.i)  81 local = self.makeDirs() + '/' + name  82 try:  83  urllib.urlretrieve(url, local, self.schedule)  84 print u"下載完成：[%s]\n" % name  85 except:  86 print u"下載失敗！\n"  87  88 def makeDirs(self):  89 path = sys.path[0]  90 newPath = os.path.join(path, 'flv')  91 if not os.path.isdir(newPath):  92  os.mkdir(newPath)  93 return newPath  94  95 """  96  回調(diào)函數(shù)獲取進度  97  @ a 已經(jīng)下載的數(shù)據(jù)塊  98  @ b 數(shù)據(jù)塊的大小  99  @ c 遠(yuǎn)程文件的大小 100 """ 101 def schedule(self, a, b, c): 102 per = 100.0 *a * b / c 103 if per > 100 : per = 100 104 sys.stdout.write(u" 進度:%.1f%%\r" % per) 105  sys.stdout.flush() 106 107 108 109 110 if __name__ == '__main__': 111 url = 'http://mv.yinyuetai.com/all?pageType=page&sort=weekViews&tab=allmv&parenttab=mv' 112 Yinyuetai(url)

總結(jié)

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