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Screencasting Framework

The following document is a written account of the Code School screencasting framework. It should be used as a reference of the accompanying screencast on the topic.

Why you should care about screencasting?

You're probably aren't going to take the time to read this document if you're not interested, but there are a lot of nice side effects caused by learning how to create quality screencasts.

Communicating more effectively - At Envy Labs we produce screencasts for our clients all the time. Whether it's demoing a new feature or for a presentation for an invester, they're often much more effective and pleasent than a phone call or screen sharing.

警告：請絕對不要跳著裝！*

系統套件

進行 Ubuntu 系統更新 / 安裝 MySQL

 > sudo apt-get update
 > sudo apt-get upgrade
 > sudo apt-get install git

Install Python

$ brew install readline sqlite gdbm
$ brew install python --universal --framework
$ python --version
Python 2.7

Symlinks...


	class AdjacencyListGraph(object):
	def __init__(self):
	self.node = {}
	self.adj = {}

	def add_node(self, node, **attrs):
	if node not in self.adj:
	self.adj[node] = {}
	self.node[node] = attrs

	# 理解JavaScript的prototype属性
	#
	# 类Dog - 类名称
	# 属性name - 类Dog的对象属性
	# 类属性species - 类Dog的类属性
	# 对象dog_a - 类Dog的对象
	# 对象dog_b - 类Dog的对象
	#
	# 类属性species是prototype对象的属性；
	# 类Dog.prototype是实例对象共享的对象；

	// 理解类的方法
	//
	// 第一段代码是使用默认类，定义和使用函数
	// 第二段代码是使用类<类Person>，定义和使用函数
	//
	// 函数吃 - 函数名称
	// 属性修饰 - 属性名称
	// 属性食品 - 属性名称
	// 类人 - 类名称
	// 对象道喜 - 类的对象名称

	<html>
	<head>
	<script language="javascript" type="text/javascript" src="https://ajax.googleapis.com/ajax/libs/jquery/1.4.4/jquery.min.js"></script>
	<script language="javascript" type="text/javascript" src="http://localhost/arbor/lib/arbor.js" ></script>
	<script language="javascript" type="text/javascript" src="http://localhost/arbor/demos/_/graphics.js" ></script>
	<script language="javascript" type="text/javascript" src="http://localhost/arbor/demos/halfviz/src/renderer.js" ></script>
	</head>
	<body>
	<canvas id="viewport" width="800" height="600"></canvas>
	<script language="javascript" type="text/javascript">

	00:58 /p/tmp> jruby bm.rb
	Rehearsal ------------------------------------------------
	inject(fold) 2.898000 0.000000 2.898000 ( 2.821000)
	Hash+map 2.412000 0.000000 2.412000 ( 2.412000)
	--------------------------------------- total: 5.310000sec

	user system total real
	inject(fold) 2.477000 0.000000 2.477000 ( 2.477000)
	Hash+map 2.292000 0.000000 2.292000 ( 2.292000)

	# PATH ------------------------------------------------------------
	export PATH="/usr/local/bin:/usr/local/Cellar/ruby/1.9.2-p180/bin/:/usr/local/sbin:~/bin/:$PATH"

	# Add Bash Completion ---------------------------------------------
	if [ -f `brew --prefix`/etc/bash_completion ]; then
	. `brew --prefix`/etc/bash_completion
	fi

	# Add Bash Completion support for Brew ----------------------------
	source `brew --prefix`/Library/Contributions/brew_bash_completion.sh

	# /etc/init.d/nginx

	#! /bin/sh

	### BEGIN INIT INFO
	# Provides: nginx
	# Required-Start: $all
	# Required-Stop: $all
	# Default-Start: 2 3 4 5
	# Default-Stop: 0 1 6