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wechat_spider 原理扫盲帖

这篇文章旨在为刚接触 wechat_spider 的人提供一个快速了解这个项目基本原理的途径。

思路

首先我们随便进入一个微信公众号详情页。

Android uses hexadecimal ARGB values, which are formatted as #AARRGGBB. That first pair of letters, the AA, represent the alpha channel. You must convert your decimal opacity values to a hexadecimal value. Here are the steps:

Alpha Hex Value Process

Take your opacity as a decimal value and multiply it by 255. So, if you have a block that is 50% opaque the decimal value would be .5. For example: .5 x 255 = 127.5
The fraction won't convert to hexadecimal, so you must round your number up or down to the nearest whole number. For example: 127.5 rounds up to 128; 55.25 rounds down to 55.
Enter your decimal value in a decimal-to-hexadecimal converter, like http://www.binaryhexconverter.com/decimal-to-hex-converter, and convert your values.

I believe the following is the best way to work with Nagle's algorithm / TCP_NODELAY / TCP_CORK.

It is described in this RedHat manual and the verdict is:

Set TCP_NODELAY = 1, always.
If you can batch data for sending by creating a buffer manually, or using writev(), prefer that.
If you cannot (e.g. "when using different libraries that provides abstractions for layers" from the above manual):
- Set TCP_CORK = 1, then write the data, then set TCP_CORK = 0.
This builds a packet in kernel space and then flushes it out.

title	author	date	source	snippet	gist
MSBuild Version Properties Cheatsheet	natemcmaster	September 18, 2019	https://stackoverflow.com/questions/42183300/what-is-the-difference-between-various-msbuild-version-properties-such-as-versi	https://jonlabelle.com/snippets/view/markdown/msbuild-version-properties-cheatsheet	https://gist.github.com/jonlabelle/34993ee032c26420a0943b1c9d106cdc

Based on Stack Overflow

Macro Must-Haves

These are my must-have macros for running games online. I make full use of the compendium, which gives these macros access to common actions and rolls, saving me time.

Remember to add /w gm or @{selected|wtype} to hide sensitive info from your players. WTYPE is an attribute used in the 5th Edition OGL character sheet, a prerequisite for most of these.

Here's what my bar looks like.

Configuring the Digispark ATTINY85 board for Arduino IDE and upgrading the bootloader

Warning: this document has to be updated by pointing to https://github.com/SpenceKonde/ATTinyCore

This note describes the configuration of an ATtiny85 based microcontroller development board named Digispark and similar to the Arduino line. It is available in many online marketplaces for roughly 1 dollar (e.g., Ebay, Amazon, AliExpress) and is shipped fully assembled, including a V-USB interface (a software-only implementation of a low-speed USB device for Atmel's AVR microcontrollers). Coding is similar to Arduino: it uses the familiar Arduino IDE and is already provided with a ready-to-use bootloader (

	#!/bin/sh
	# Redirect output to stderr.
	exec 1>&2
	# enable user input
	exec < /dev/tty

	consoleregexp='console.log'
	# CHECK
	if test $(git diff --cached \| grep $consoleregexp \| wc -l) != 0
	then

	var mediaJSON = { "categories" : [ { "name" : "Movies",
	"videos" : [
	{ "description" : "Big Buck Bunny tells the story of a giant rabbit with a heart bigger than himself. When one sunny day three rodents rudely harass him, something snaps... and the rabbit ain't no bunny anymore! In the typical cartoon tradition he prepares the nasty rodents a comical revenge.\n\nLicensed under the Creative Commons Attribution license\nhttp://www.bigbuckbunny.org",
	"sources" : [ "http://commondatastorage.googleapis.com/gtv-videos-bucket/sample/BigBuckBunny.mp4" ],
	"subtitle" : "By Blender Foundation",
	"thumb" : "images/BigBuckBunny.jpg",
	"title" : "Big Buck Bunny"
	},
	{ "description" : "The first Blender Open Movie from 2006",
	"sources" : [ "http://commondatastorage.googleapis.com/gtv-videos-bucket/sample/ElephantsDream.mp4" ],

	version: "3.6"
	services:
	soft-serve:
	image: charmcli/soft-serve:latest
	container_name: soft-serve
	restart: unless-stopped
	ports:
	- 23231:23231
	- 23232:23232
	- 23233:23233