hemashushu

轻松学习汇编语言

汇编是直接跟硬件打交道的， 于是在学习汇编的同时，不经意间就了解到计算机的工作原理。

《穿越计算机的迷雾 by 李忠》

这是饭前开胃菜，作者从什么是电流开始，讲加法器、数字逻辑、触发器、CPU 原理、外设等，是计算机（硬件）组成原理的科普向轻松读物

《汇编语言 by 王爽》

jerieljan

I use PlantUML a lot. It's what I use for drawing all sorts of diagrams and it's handy because of its easy markup (once you get used to it) while making things easy to maintain as projects grow (thanks to version control)

This gist explains how I do my PlantUML workspace in a project.

• The idea is to keep a globals directory for all diagrams to follow (like the "stylesheet" below) to keep things consistent.
• I use a stylesheet.iuml file that keeps the use of colors consistent through use of basic FOREGROUND, BACKGROUND and ACCENT colors.
• The style-presets.iuml file defines these colors so you can make "presets" or "themes" out of them.
• As stated in the stylesheet.iuml, you'll need the Roboto Condensed and Inconsolata fonts for these to work properly.
• You can choose to either run the PlantUML jar over your file/s, or use an IDE like VSCode with the PlantUML extension. Here's a preview of example-sequence.puml for example: https://imgur.com/Klk3w2F

facert

# coding: utf-8
from math import sqrt
import jieba.analyse


def cut_word(content):
    '''
    (u'\u65b9\u5e84', 2.4582479479)
    (u'\u82b3\u57ce\u56ed', 1.19547675029)
    (u'\u53ef\u6708\u4ed8', 1.19547675029)

582033

#!/usr/bin/env python
# -*- coding: utf-8 -*-

import sys, re
import requests
import Queue
import threading

class Proxy():
    def __init__(self, proxy_url, target_url, ver_keyword, timeout):

jp1017

/**
 * 百度坐标（BD09）、国测局坐标（火星坐标，GCJ02）、和WGS84坐标系之间的转换的工具
 * 
 * 参考 https://github.com/wandergis/coordtransform 实现的Java版本
 * @author geosmart
 */
public class CoordinateTransformUtil {
	static double x_pi = 3.14159265358979324 * 3000.0 / 180.0;
	// π
	static double pi = 3.1415926535897932384626;

ryerh

注意：本文内容适用于 Tmux 2.3 及以上的版本，但是绝大部分的特性低版本也都适用，鼠标支持、VI 模式、插件管理在低版本可能会与本文不兼容。

Tmux 快捷键 & 速查表 & 简明教程

启动新会话：

tmux [new -s 会话名 -n 窗口名]

恢复会话：

superjamie

Raspberry Pi VPN Router

This is a quick-and-dirty guide to setting up a Raspberry Pi as a "router on a stick" to PrivateInternetAccess VPN.

Requirements

Install Raspbian Jessie (2016-05-27-raspbian-jessie.img) to your Pi's sdcard.

Use the Raspberry Pi Configuration tool or sudo raspi-config to:

imjoey

# -*- coding: utf-8 -*-

import logging
logger = logging.getLogger(__name__)

import time
import six
from twisted.internet import defer, threads

from scrapy.pipelines.files import FSFilesStore, S3FilesStore

comex

#include <sys/socket.h>
#include <sys/ioctl.h>
#include <sys/kern_event.h>
#include <stdio.h>
#include <stdint.h>
#include <stdbool.h>
#include <stdlib.h>
#include <assert.h>
#include <string.h>
#include <net/ethernet.h>

jspahrsummers

/// Observes a run loop to detect any stalling or blocking that occurs.
///
/// This class is thread-safe.
@interface GHRunLoopWatchdog : NSObject

/// Initializes the receiver to watch the specified run loop, using a default
/// stalling threshold.
- (id)initWithRunLoop:(CFRunLoopRef)runLoop;

/// Initializes the receiver to detect when the specified run loop blocks for