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原创如何在nginx下部署vue 项目

vim /etc/nginx/nginx.conf server { root /home/xxxx/home/; location /home { try_files $uri $uri/ @router; index index.html; } lo...

2020-04-14 20:35:06 255

原创一个JAVA的链表

public class ListNode { public int e; public ListNode next; private ListNode head; public ListNode(int e, ListNode next) { head = this; this.e = e; this.next = next; } public ListNod...

2020-02-14 18:28:41 180

原创 JS队列的一种实现方式

class LoopQueue { constructor(capacity) { this.data = []; this.data.length = capacity; this.front = 0; this.tail = 0; this.size = 0; } getSize() {...

2020-01-25 19:31:00 209

原创 Javascript数组

class Array { constructor() { this.data = []; } //数组是否为空 isEmpty() { return this.data.length == 0; } //获得数组元素的个数 getSize() { return this.data.lengt...

2020-01-24 19:27:08 108

原创二分搜索树

package com.sun.refect;import java.util.LinkedList;import java.util.Queue;/** * @author sun 二分搜索樹 * @param <E> */public class BST<E extends Comparable<E>> { private class ...

2019-12-30 14:13:33 93

原创 JS 策略模式

class A{ buy(){ console.log("Buy A") }}class B{ buy(){ console.log("Buy B") }}class C{ buy(){ console.log("Buy C") }}const a = new A();a.buy()...

2019-11-27 14:30:56 117

原创 JS 桥接模式

class Color{ constructor(name){ this.name = name }}class Shape{ constructor(name,color){ this.name = name this.color = color } draw(){ console.l...

2019-11-27 14:19:47 190

原创 JS 原型模式

const prototype = { getName(){ return this.first+ ' - '+this.last; }, say(){ console.log('hello') }}const x = Object.create(prototype)x.first = "张三"x.last = "李四"...

2019-11-27 14:13:00 176

原创 Java 链表删除某一元素

package com.linkedlist;public class ListNode { public int val; public ListNode next; public ListNode(int x) { val = x; } public ListNode(int[] arr){ ...

2019-11-26 15:16:26 545

原创 Java 链表

package com.linkedlist;public class LinkedList<E> { private class Node{ public E e; public Node next; public Node(E e,Node next){ this.e = e; this.next = next; } public ...

2019-11-25 15:41:42 88

原创 Java 线程安全发布对象

package com.singleton;/** * @author sun * 懒汉模式 * 非线程安全 */public class SingletonExample { private SingletonExample(){ } private static SingletonExample instance = null; public static S...

2019-11-25 08:55:13 129

原创 Java 线程安全性

原子性可见性有序性package com.atomic;import java.util.concurrent.CountDownLatch;import java.util.concurrent.ExecutorService;import java.util.concurrent.Executors;import java.util.concurrent.Semaphore...

2019-11-24 19:47:23 97

原创 Java 队列循环队列

package com.queue;/** * 动态数组 * @param <E> */public class Array<E> { private E[] data; private int size; // 构造函数，传入数组的容量capacity构造Array public Array(int capacity){ ...

2019-11-24 10:34:45 144

原创 Java 栈的实现

package com.stack;public class Array<E> { private E[] data; private int size; // 构造函数，传入数组的容量capacity构造Array public Array(int capacity){ data = (E[])new Object[capaci...

2019-11-23 17:33:36 138

原创 JS状态模式

class State{ constructor(color){ this.color = color } handle(context){ console.log(`turn to ${this.color} light`) context.setState(this) }}class Context{ ...

2019-11-23 10:22:47 156

原创 JS观察者模式与NodeJS自定义事件

class Subject{ constructor(){ this.state = 0; this.observers = []; } setState(state){ this.state = state; this.notifyAllObservers(); } getState(){...

2019-11-23 09:03:30 180

原创 JS观察者模式

class Subject{ constructor(){ this.state = 0 this.observers = [] } getState(){ return this.state } setState(state){ this.state = state this...

2019-11-22 09:31:03 86

原创 JS代理模式

class ReadImg{ constructor(fileName){ this.fileName = fileName this.loadFromDisk() } display(){ console.log("display..............."+this.fileName) } loadF...

2019-11-21 11:35:42 90

原创 Android Handler的使用

package com.example.handler_01;import androidx.appcompat.app.AppCompatActivity;import android.os.Bundle;import android.os.Handler;import android.widget.TextView;public class MainActivity exte...

2019-11-20 11:22:33 202

原创 JS适配器模式

class Adaptee{ specificRequest(){ return "德国标准插头" }}class Target{ constructor(){ this.adaptee = new Adaptee() } request(){ let info = this.adaptee.speci...

2019-11-20 09:11:17 90

原创 JS单例模式

class SingleObject{ constructor(){ this.name = "sun" } login(){ console.log('login............') } setName(name){ this.name = name } getName(){ ...

2019-11-20 08:39:37 84

原创 JS工厂模式的例子

class Person{ constructor(name,age){ this.name = name; this.age = age; } eat(){ console.log(`I am ${this.name} eat `) } speak(){ console.log(`My nam...

2019-11-19 10:05:30 166

原创使用Java8的javascript引擎

import java.io.File;import java.io.FileNotFoundException;import java.io.FileReader;import javax.script.Invocable;import javax.script.ScriptEngine;import javax.script.ScriptEngineManager;import jav

2017-09-29 19:05:04 475

原创因式分解

public class Test { public static void main(String[] args) { Scanner sc = new Scanner(System.in); int number = sc.nextInt(); int n = 2; int Indexes = 0; while

2017-09-07 20:59:02 440

原创 Python MySQLdb

#-*- coding:utf-8 -*-'''Created on 2017年9月6日@author: Administrator'''import MySQLdbconn=MySQLdb.connect(host="localhost",user="root",passwd="root",db="mydb",charset="utf8")# sql = "create table Per

2017-09-06 16:59:04 143

原创 GoTo 递归

#include <stdio.h>#include <string.h>void ListFile(){ int a = 10; goto cc; cc: a=a-1; printf("a=%d,已经减一\r\n",a); if(a>0){ goto cc; }}int main()

2017-09-03 20:28:39 412

原创 Python抽象工厂模式实现

# -*- coding:utf-8 -*-'''Created on 2017.9.3@author: dell'''#注意 python动态的语言类的属性不一定的被实例所共享 class Item(object): caption = '' def __init__(self,caption): print "Item caption "+cap

2017-09-03 20:06:56 369

原创 python知识点

def prints_params(*params): print params# prints_params('Test!')# prints_params(1,2,3,4,5,6,7)def prints_params2(title,*params): print title print params# prints_params2("Params: ",1,2,3,

2017-07-03 02:39:08 126

原创 struts2自定义类型转换器

前台jsp页面<%@ page language="java" contentType="text/html; charset=utf-8" pageEncoding="utf-8"%> <%@ taglib uri="/struts-tags" prefix="s"%><!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitiona

2017-07-02 22:12:46 191

原创 Java8函数式编程

package example;import java.awt.Event;import java.awt.event.ActionEvent;import java.awt.event.ActionListener;import java.util.EventListener;import java.util.function.BinaryOperator;import javax.swi

2017-07-02 17:16:27 378 1

原创 FlyWeight模式

public interface Shape { void draw();}public class Circle implements Shape { private String color; private int x; private int y; private int radius; public Circle(String color)

2017-05-25 12:38:38 202

原创 Java工厂模式

定义一个创建对象的接口public interface Shape { void draw();}子类实现接口public class Rectangle implements Shape{ @Override public void draw() { System.out.println("Inside Rectangle :: Draw()");

2017-05-24 13:52:26 262

原创欢迎使用优快云-markdown编辑器

BootStrap代码：   <p> <code> <html> <head> </head

2017-05-24 13:21:24 205

原创 JavaScript变量对象的深入

什么是变量对象变量对象是执行的上下文相关的作用域的对象先引出第一个关键词全局对象全局对象是预定义对象通过全局对象可以访问其他所有的预定义对象的函数，属性。在顶层的Javascript中可以使用的this关键字我们可以看到this 的全局对象的是windowthis 是全局对象的但也是Object实例化的一个对象可以看到this是顶层对象还可以做例子：

2017-05-24 13:05:12 170

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