Python如何爬取网页中js添加的内容 （代码）

import sys

from PyQt4.QtWebKit import *

from PyQt4.QtGui import *

from PyQt4.QtCore import *

class Render(QWebPage):  # 用来渲染网页,将url中的所有信息加载下来并存到一个新的框架中

    def __init__(self,url):

        self.app = QApplication(sys.argv)

        QWebPage.__init__(self)

        self.loadFinished.connect(self._loadFinished)

        self.mainFrame().load(QUrl(url))

        self.app.exec_()

    def _loadFinished(self, result):

        self.frame = self.mainFrame()

        self.app.quit()

url = 'http://jandan.net/ooxx'

r = Render(url)

html = r.frame.toHtml()

print(html)