Fruit精品文章

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  Java梳理之理解多態(tài)

  ...，香蕉，橙子都是水果，實(shí)體類Apple,Banana,Orange全都繼承Fruit類。 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 評論0 收藏0
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  我來重新學(xué)習(xí)js的面向?qū)ο螅╬art 4）

  ...od.prototype.getType = function() { return this.type; }; // 定義一個 Fruit 的構(gòu)造函數(shù) function Fruit() { this.type = 水果; } // 將 Fruit 的原型對象指向 Food 的實(shí)例 Fruit.prototype = new Food(); // 定義 Fruit 的原型對象的一個方...

  MAX_zuo 2019-08-23 12:19 評論0 收藏0
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  javascript的對象與繼承

  ... this.price = price; this.colour = colour; } Apple.prototype.type = fruit; //可被繼承的屬性 var appleRed = new Apple(10, red); var appleGreen = new Apple(20, green); appleRed.colour;//red appleGre...

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

  ...問題，就引出了泛型這一個概念 泛型接口和類 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 評論0 收藏0
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  Java 泛型總結(jié)（三）：通配符的使用

  ...Java 中的數(shù)組是協(xié)變的，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 評論0 收藏0
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  如何在 JS 循環(huán)中正確使用 async 與 await

  ...這篇文章，假設(shè)你想從水果籃中獲取水果的數(shù)量。 const fruitBasket = { apple: 27, grape: 0, pear: 14 }; 你想從fruitBasket獲得每個水果的數(shù)量。 要獲取水果的數(shù)量，可以使用getNumFruit函數(shù)。 const getNumFruit = fruit => { return fruitBasket[fruit]; };...

  liujs 2019-08-23 17:57 評論0 收藏0
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  JS淬煉: Primitive vs. Object

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

  Hancock_Xu 2019-08-20 12:24 評論0 收藏0
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  工廠模式(一)之抽象工廠模式

  ... 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 評論0 收藏0
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  項(xiàng)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 評論0 收藏0
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  徹底解決if else嵌套問題

  ...傳入水果類型返回顏色，代碼如下： 寫法一 function test(fruit) { if (fruit == apple || fruit == strawberry) { console.log(red); } } 寫法二 function test(fruit) { // 把同類放到一個中數(shù)組 const redFruits = [apple, strawbe...

  zhoutk 2019-08-23 13:55 評論0 收藏0
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  工廠模式(二)之建造者模式

  ...構(gòu)圖： 代碼如下： //創(chuàng)建一個水果套餐Meal類 public class FruitMeal { private Apple apple;//蘋果--屬性包含價格 private Banana banana;//香蕉價格 private Orange orange; //桔子價格 private int discount;//折扣價 pr...

  wemall 2019-08-16 17:29 評論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 評論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 評論0 收藏0