Xianglong Wu WuXianglong

DOM Performance

How the browser renders the document
- Receives the data (bytes) from the server.
- Parses and converts into tokens (<, TagName, Attribute, AttributeValue, >).
- Turns tokens into nodes.
- Turns nodes into the DOM tree.
Builds CSSOM tree from the css rules.

	// TextEncoder/TextDecoder polyfills for utf-8 - an implementation of TextEncoder/TextDecoder APIs
	// Written in 2013 by Viktor Mukhachev <[email protected]>
	// To the extent possible under law, the author(s) have dedicated all copyright and related and neighboring rights to this software to the public domain worldwide. This software is distributed without any warranty.
	// You should have received a copy of the CC0 Public Domain Dedication along with this software. If not, see <http://creativecommons.org/publicdomain/zero/1.0/>.

	// Some important notes about the polyfill below:
	// Native TextEncoder/TextDecoder implementation is overwritten
	// String.prototype.codePointAt polyfill not included, as well as String.fromCodePoint
	// TextEncoder.prototype.encode returns a regular array instead of Uint8Array
	// No options (fatal of the TextDecoder constructor and stream of the TextDecoder.prototype.decode method) are supported.

	<!DOCTYPE html>
	<html><head><meta http-equiv="Content-Type" content="text/html; charset=UTF-8">

	<title>CSS Percentage Circle</title>
	<style>
	@import url("https://fonts.googleapis.com/css?family=Titillium+Web:200,200i,300,300i,400,400i,600,600i,700,700i,900");
	body {
	font-family: "Titillium Web", sans-serif;
	margin: 0 auto;
	}

	<!DOCTYPE html>
	<html><head><meta http-equiv="Content-Type" content="text/html; charset=UTF-8">

	<title>CSS Percentage Circle</title>
	<style>
	@import url("https://fonts.googleapis.com/css?family=Titillium+Web:200,200i,300,300i,400,400i,600,600i,700,700i,900");
	body {
	font-family: "Titillium Web", sans-serif;
	margin: 0 auto;
	}

	<html>
	<header>
	<style type="text/css">
	@import url(https://fonts.googleapis.com/css?family=Lato:700);
	*,
	*:before,
	*:after {
	-webkit-box-sizing: border-box;
	box-sizing: border-box;
	}

	# -- coding: utf-8 --
	import bs4
	import requests

	BASE_URL = 'http://bjcme.haoyisheng.com/beijing_project/listProjectGongbu.jsp'
	CONTENT_URL = 'http://bjcme.haoyisheng.com/beijing_project/projectGongbuList.do?d-1342871-p=1&beian=&orderBy=subject&pici=&pageSize=10&parentSubjectId=&sdanwei=&type=&xmanager=&gongbu=3&gongbuCode=&subjectId=&name=&scode=&year=2017'
	TEACHER_URL = 'http://bjcme.haoyisheng.com/beijing_project/projectTeacherList.do?requestType=PRINT&id=%s'


	def get_content():

	#!/usr/bin/env python
	#
	# Copyright 2008-2014 Jose Fonseca
	#
	# This program is free software: you can redistribute it and/or modify it
	# under the terms of the GNU Lesser General Public License as published
	# by the Free Software Foundation, either version 3 of the License, or
	# (at your option) any later version.
	#
	# This program is distributed in the hope that it will be useful,

	#!/usr/bin/env python
	# encoding: utf-8
	import socket
	from hashlib import sha1
	from random import randint
	from struct import unpack
	from socket import inet_ntoa
	from threading import Timer, Thread
	from time import sleep