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云

IaaS指提供系统（可以自己选）或者储存空间之类的硬件，软件要自己手动装。PaaS提供语言环境和框架（可以自己选）。SaaS只能使用开发好的软件（卖软件本身，如税务会计、表格文字处理）。BaaS一般类似于非关系数据库，但各家不通用
云服务的特点：零前期成本 & 按需付费 & 弹性（类似于租，可随时多加、退掉；但没有残值）、高可用（放在机房中，不同AZ间水电隔离）

其他人的集合

https://education.github.com/pack GitHub学生包，需用教育邮箱验证。各种福利，可从DigitalOcean上手
https://github.com/ripienaar/free-for-dev 本文尽量不与此项目重复
https://free.zhelper.net/

[Project Name]

Every time you choose to apply a rule(s), explicitly state the rule(s) in the output. You can abbreviate the rule description to a single word or phrase.

Project Context

[Brief description ]

[more description]
[more description]
[more description]

Google Public NTP [AS15169]:

time.google.com

time1.google.com

time2.google.com

time3.google.com

Semantic Commit Messages

See how a minor change to your commit message style can make you a better programmer.

Format: <type>(<scope>): <subject>

<scope> is optional

Example

Google Chrome Encrypted Cookies

Google Chrome stores browser cookies in an SQLite database. The database has two tables, meta containing format and version metadata, and cookies with the contents of the cookies. The cookies table uses this schema:

-- To reproduce: sqlite path/to/Cookies .schema
CREATE TABLE cookies (
   creation_utc     INTEGER  NOT NULL,  -- microseconds since epoch
   host_key         TEXT     NOT NULL,  -- domain
   name             TEXT     NOT NULL,

A Synthesis of Platonic Dialogues, Daoist Insights, Vedic Revelation, Biblical Teachings, Buddhist Doctrine, and Nietzschean Vision

	# How to encode and decode a file backed up as a series of printed QR codes

	# Install the required tools

	sudo apt-get update
	sudo apt-get install zbar-tools imagemagick qrencode

	################################################################################

	# Convert the file to a base 64 encoded format. Probably not needed as QR codes

	// -- compile-command: "nvcc -D THRUST_SORT_TYPE=uint32_t -arch sm_50 -o sort sort_32.cu"; --

	#include <thrust/host_vector.h>
	#include <thrust/device_vector.h>
	#include <thrust/generate.h>
	#include <thrust/sort.h>
	#include <thrust/copy.h>
	#include <algorithm>
	#include <cstdlib>

	# Modified from https://github.com/alyssais configuration.
	#
	# The following configuration heavily leverages modal keymaps to minimize the
	# pollution of global keybindings. In addition, the modal keymaps facilitate
	# the consistent use of the same keybindings across different modes. For
	# example, this configuration uses 'h', 'l', 'j', and 'k' to represent west,
	# east, south, and north when: changing focus, warping windows, resizing
	# windows, swapping windows, and moving floating windows. Those four keys are
	# mapped differently depending on the current mode to provide a consistent user
	# experience.

	var all_contents = document.querySelectorAll('div#contents > ytd-item-section-renderer:nth-of-type(3) > div#contents > ytd-shelf-renderer > div#dismissible > div#contents > ytd-grid-renderer > div#items > ytd-grid-playlist-renderer > div#details > yt-formatted-string > a')

	async function getFullTitle(item) {
	var double_parent_node = item.parentNode.parentNode
	var channel_name_container = double_parent_node.querySelector('ytd-video-meta-block > div#metadata > div#byline-container > ytd-channel-name > div#container > div#text-container > yt-formatted-string')
	var playlist_title = double_parent_node.querySelector('h3 > a')
	var _a = channel_name_container.querySelector('a')
	if (_a) {
	return playlist_title.title + ' \| -> ' + _a.text + ' \| -> ' + _a.href + '\n'
	} else {