Fruit

Fruit精品文章

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  Java梳理之理解多态

  ...，香蕉，橙子都是水果，实体类Apple,Banana,Orange全都继承Fruit类。 public class Fruit { public void name(){ System.out.println(水果); } public static void main(String[] arg0){ Fruit apple = new...

  xfee 2019-08-15 12:01 评论0 收藏0
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  我来重新学习js的面向对象（part 4）

  ...od.prototype.getType = function() { return this.type; }; // 定义一个 Fruit 的构造函数 function Fruit() { this.type = 水果; } // 将 Fruit 的原型对象指向 Food 的实例 Fruit.prototype = new Food(); // 定义 Fruit 的原型对象的一个方...

  MAX_zuo 2019-08-23 12:19 评论0 收藏0
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  javascript的对象与继承

  ... this.price = price; this.colour = colour; } Apple.prototype.type = fruit; //可被继承的属性 var appleRed = new Apple(10, red); var appleGreen = new Apple(20, green); appleRed.colour;//red appleGre...

  jone5679 2019-08-20 17:21 评论0 收藏0
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  Java泛型全解析

  ...问题，就引出了泛型这一个概念 泛型接口和类 public class Fruit { private T info; public Fruit(T info) { this.info = info; } public T getInfo() { return info; } public void setI...

  shixinzhang 2019-08-14 15:45 评论0 收藏0
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  Java 泛型总结（三）：通配符的使用

  ...Java 中的数组是协变的，什么意思？看下面的例子： class Fruit {} class Apple extends Fruit {} class Jonathan extends Apple {} class Orange extends Fruit {} public class CovariantArrays { public static void main(Stri...

  itvincent 2019-08-14 15:45 评论0 收藏0
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  如何在 JS 循环中正确使用 async 与 await

  ...这篇文章，假设你想从水果篮中获取水果的数量。 const fruitBasket = { apple: 27, grape: 0, pear: 14 }; 你想从fruitBasket获得每个水果的数量。 要获取水果的数量，可以使用getNumFruit函数。 const getNumFruit = fruit => { return fruitBasket[fruit]; };...

  liujs 2019-08-23 17:57 评论0 收藏0
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  JS淬炼: Primitive vs. Object

  ...类son1和son2。 var father = { primitive: 1, object: { fruit: APPLE } }; var son1 = Object.create(father); var son2 = Object.create(father); Primitive Property 如果父类的property是Primit...

  Hancock_Xu 2019-08-20 12:24 评论0 收藏0
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  工厂模式(一)之抽象工厂模式

  ... public static final int TYPE_BANANA = 3;//香蕉 public static Fruit getFruit(int type){ if(TYPE_APPLE == type){ return new Apple(); } else if(TYPE_ORANGE == type)...

  woshicixide 2019-08-19 11:42 评论0 收藏0
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  项目中常用的ES6

  ... const breakfast = () => [cake, coffee, apple] let [dessert, drink, fruit] = breakfast() console.info(dessert, drink, fruit) // cake coffee apple const breakfast = () => { return { dess...

  Stardustsky 2019-08-23 12:31 评论0 收藏0
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  彻底解决if else嵌套问题

  ...传入水果类型返回颜色，代码如下： 写法一 function test(fruit) { if (fruit == apple || fruit == strawberry) { console.log(red); } } 写法二 function test(fruit) { // 把同类放到一个中数组 const redFruits = [apple, strawbe...

  zhoutk 2019-08-23 13:55 评论0 收藏0
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  工厂模式(二)之建造者模式

  ...构图： 代码如下： //创建一个水果套餐Meal类 public class FruitMeal { private Apple apple;//苹果--属性包含价格 private Banana banana;//香蕉价格 private Orange orange; //桔子价格 private int discount;//折扣价 pr...

  wemall 2019-08-16 17:29 评论0 收藏0
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  React context

  ...extTypes var A = React.createClass({ childContextTypes: { // fruit is not specified, and so it will not be sent to the children of A name: React.PropTypes.string.isRequired ...

  melody_lql 2019-08-21 10:32 评论0 收藏0
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  [LeetCode] 904. Fruit Into Baskets

  Problem In a row of trees, the i-th tree produces fruit with type tree[i]. You start at any tree of your choice, then repeatedly perform the following steps: Add one piece of fruit from this tree to y...

  Warren 2019-08-16 13:33 评论0 收藏0