| #!/bin/sh | |
| # | |
| # Script for automatic setup of an IPsec VPN server on CentOS/RHEL 6 and 7. | |
| # Works on any dedicated server or virtual private server (VPS) except OpenVZ. | |
| # | |
| # DO NOT RUN THIS SCRIPT ON YOUR PC OR MAC! | |
| # | |
| # The latest version of this script is available at: | |
| # https://github.com/hwdsl2/setup-ipsec-vpn | |
| # |
| /** | |
| * @author Spirit | |
| * @date 2017/12/14 | |
| */ | |
| /** | |
| * Twitter 雪花算法 | |
| * | |
| * 0 - 0000000000 0000000000 0000000000 0000000000 0 - 00000 - 00000 - 000000000000 | |
| * 1 位标识 |
| class ArrayBlockingQueue | |
| attr_reader :capacity, :queue | |
| def initialize(capacity = 5) | |
| @capacity = capacity | |
| @lock = Mutex.new | |
| @empty = ConditionVariable.new | |
| @full = ConditionVariable.new | |
| @queue = [] | |
| end |
| # encoding: utf-8 | |
| # frozen_string_literal: true | |
| require 'thwait' | |
| class Object | |
| def synchronize | |
| mutex.synchronize { yield self } | |
| end |
| # Ruby Thread Pool | |
| # ================ | |
| # A thread pool is useful when you wish to do some work in a thread, but do | |
| # not know how much work you will be doing in advance. Spawning one thread | |
| # for each task is potentially expensive, as threads are not free. | |
| # | |
| # In this case, it might be more beneficial to start a predefined set of | |
| # threads and then hand off work to them as it becomes available. This is | |
| # the pure essence of what a thread pool is: an array of threads, all just | |
| # waiting to do some work for you! |
| // 定义单例模式中需要完成的代码逻辑 | |
| public interface MySingleton { | |
| void doSomething(); | |
| } | |
| public enum Singleton implements MySingleton { | |
| INSTANCE { | |
| @Override | |
| public void doSomething() { | |
| System.out.println("complete singleton"); |
People
 :bowtie: |
😄 :smile: |
😆 :laughing: |
|---|---|---|
😊 :blush: |
😃 :smiley: |
:relaxed: |
😏 :smirk: |
😍 :heart_eyes: |
😘 :kissing_heart: |
😚 :kissing_closed_eyes: |
😳 :flushed: |
😌 :relieved: |
😆 :satisfied: |
😁 :grin: |
😉 :wink: |
😜 :stuck_out_tongue_winking_eye: |
😝 :stuck_out_tongue_closed_eyes: |
😀 :grinning: |
😗 :kissing: |
😙 :kissing_smiling_eyes: |
😛 :stuck_out_tongue: |
| Go layout | Java notation | C notation | Notes |
|---|---|---|---|
| 2016-01-02 | yyyy-MM-dd | %F | ISO 8601 |
| 20160102 | yyyyMMdd | %Y%m%d | ISO 8601 |
| January 02, 2006 | MMMM dd, yyyyare neat | %B %d, %Y | |
| 02 January 2006 | dd MMMM yyyy | %d %B %Y | |
| 02-Jan-2006 | dd-MMM-yyyy | %d-%b-%Y | |
| 01/02/06 | MM/dd/yy | %D | US |
| 01/02/2006 | MM/dd/yyyy | %m/%d/%Y | US |
| 010206 | MMddyy | %m%d%y | US |
| package com.luv2code.springdemo.mvc.validation; | |
| import java.lang.annotation.ElementType; | |
| import java.lang.annotation.Retention; | |
| import java.lang.annotation.RetentionPolicy; | |
| import java.lang.annotation.Target; | |
| import javax.validation.Constraint; | |
| import javax.validation.Payload; |
| #!/usr/bin/env bash | |
| ### BEGIN INIT INFO | |
| # Provides: Shadowsocks-libev | |
| # Required-Start: $network $local_fs $remote_fs | |
| # Required-Stop: $network $local_fs $remote_fs | |
| # Default-Start: 2 3 4 5 | |
| # Default-Stop: 0 1 6 | |
| # Short-Description: Fast tunnel proxy that helps you bypass firewalls | |
| # Description: Start or stop the Shadowsocks-libev server |
