Yang Xi vinceyang15

Classes

class members (including data members) are public
all member functions are virtual
method function,
- declared with an explicit first argument representing the object
- the object is provided implicitly by the function call
classes are objects
Built-in types can be used as base classes
Operator overloading supported

Errors and Exceptions

1. Handle Exceptions

try ... except

while True:
	try:
		x = int(raw_input("Please enter a number: "))
		break

Input and Output

1. Output Formatting

str.format(): control formatting of output
str(): return representations of values, which are human-readable
repr(): genertate representations, readable by the interpreter
Many values have the same representation using either function. However, strings and float point numbers have distinct representations
```
 s = 'Hello, world.'
```

Module

Module: a file containing Python definitions and statements
File name is the module name, suffix .py

Module's name available as the global variable __name__

 # suppose we created a module called fib, which has two function fib and fib2
 # fib prints Fibonacci series up to n
 # fib2 returns Fibonacci series up to n

Data Structures

1. Lists

list.append(x), list[len(list):] = [x]
list.extend(L), list[len(list):] = L
list.insert(i, x)
list.remove(x)
list.pop(i), i is optional, if i is not specified, removes last one
list.index(x)
list.count(x)

	{
	(* short names for important modules *)
	module L = Lexing
	module B = Buffer

	type token =
	\| STR of string
	\| INT of int
	\| ID of string
	\| PLUSEQ

	<? php
	$device = ''; // My iphone deviceToken
	$payload['aps'] = array('alert' => 'This is the alert text', 'badge' => 1, 'sound' => 'default');
	$payload['server'] = array('serverId' => 'localhost', 'name' => 'waach');
	$output = json_encode($payload);

	$apnsCert = 'apns-dev.pem';

	$streamContext = stream_context_create();
	stream_context_set_option($streamContext, 'ssl', 'local_cert', $apnsCert);

	@import url("/usr/share/gnome-shell/theme/gnome-shell.css");
	/* customizing GNOME Shell for desktop interface
	with fonts size 9pt (instead default 11pt size) */


	/* Text Styles */
	/* default text style */
	stage {
	font-size: 9pt; /* 11pt */
	}

	;;; minimial-cedet-config.el --- Working configuration for CEDET from bzr

	;; Copyright (C) Alex Ott
	;;
	;; Author: Alex Ott <[email protected]>
	;; Keywords: cedet, C++, Java
	;; Requirements: CEDET from bzr (http://cedet.sourceforge.net/bzr-repo.shtml)

	;; Do checkout of fresh CEDET, and use this config (don't forget to change path below)

	array.filter(function(elem, index, self) {
	return self.indexOf(elem) === index;
	});