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// Use Gists to store code you would like to remember later on
console.log(window); // log the "window" object to the console

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# Start the old vagrant
$ vagrant init centos-6.3
$ vagrant up

# You should see a message like:
#  [default] The guest additions on this VM do not match the install version of
#  VirtualBox! This may cause things such as forwarded ports, shared
#  folders, and more to not work properly. If any of those things fail on
#  this machine, please update the guest additions and repackage the
#  box.

ueaner

package counter

import "io"

type Counter struct {
	w io.Writer
	c int
}

func New(w io.Writer) (h *Counter) {

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// $string： 明文 或 密文  
 // $operation：DECODE表示解密,其它表示加密  
 // $key： 密匙  
 // $expiry：密文有效期  
 function authcode($string, $operation = 'DECODE', $key = '', $expiry = 0) {  
    // 动态密匙长度，相同的明文会生成不同密文就是依靠动态密匙  
    $ckey_length = 4;  
      
    // 密匙  
    $key = md5($key ? $key : $GLOBALS['discuz_auth_key']);  

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<?php
require_once dirname(__FILE__) . '/../lib/simpletest/autorun.php';

function retry($f, $delay = 10, $retries = 3)
{
    try {
        return $f();
    } catch (Exception $e) {
        if ($retries > 0) {
            sleep($delay);

ueaner

Create a branch with the tag

	git branch {tagname}-branch {tagname}
	git checkout {tagname}-branch

Include the fix manually if it's just a change ....

	git add .
	git ci -m "Fix included" # or cherry-pick the commit, whatever is easier
	git cherry-pick {num_commit}

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Use tcpdump to monitor mysql

  # Capture the packets
  sudo tcpdump -i eth0 port 3306 -s 65535 -x -n -q -tttt > tcpdump.out

  # analyze all the requests from a given host
  pt-query-digest --type=tcpdump --filter '($event->{host} || $event->{ip} || "") =~ m/192.168.248.64/' tcpdump.out

  # 直接使用 tcpdump 打印相关SQL文本
  sudo tcpdump -i any -nn -s 0 -l -w - host 192.168.56.102 and tcp port 3306 | strings

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#!/bin/bash

## Change following to '0' for output to be like ls and '1' for exa defaults
# Don't list implied . and .. by default with -a
dot=1
# Show human readable file sizes by default
hru=1
# Don't show group column
fgp=0
# Don't show hardlinks column

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// Simple groupcache example: https://github.com/golang/groupcache
// Running 3 instances:
// go run groupcache.go -addr=:8080 -pool=http://127.0.0.1:8080,http://127.0.0.1:8081,http://127.0.0.1:8082
// go run groupcache.go -addr=:8081 -pool=http://127.0.0.1:8081,http://127.0.0.1:8080,http://127.0.0.1:8082
// go run groupcache.go -addr=:8082 -pool=http://127.0.0.1:8082,http://127.0.0.1:8080,http://127.0.0.1:8081
// Testing:
// curl localhost:8080/color?name=red
package main

import (

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const withCss = require('@zeit/next-css')
const withSaas = require('@zeit/next-sass')

module.exports = withCss(withSaas({
  webpack: (config, { isServer }) => {
    if (isServer) {
      const antStyles = /antd\/.*?\/style\/css.*?/
      const origExternals = [...config.externals]
      config.externals = [