坦克大战 时间限制:1000 ms | 内存限制:65535 KB 难度:3 描写叙述 Many of us had played the game "Battle city" in our childhood, and some people (like me) even often play it on computer now. What we are discussing is a simple edition of this game. Given a map that…
题目链接 描述 Many of us had played the game "Battle city" in our childhood, and some people (like me) even often play it on computer now. What we are discussing is a simple edition of this game. Given a map that consists of empty spaces, rivers, stee…
坦克大战 时间限制:1000 ms | 内存限制:65535 KB 难度:3 描述 Many of us had played the game "Battle city" in our childhood, and some people (like me) even often play it on computer now. What we are discussing is a simple edition of this game. Given a map that c…
坦克大战 时间限制:1000 ms | 内存限制:65535 KB 难度:3 描述 Many of us had played the game "Battle city" in our childhood, and some people (like me) even often play it on computer now. What we are discussing is a simple edition of this game. Given a map that…
前言 javascript与程序的语言比如C#或者java不一样,他并没有“类”的概念,虽然最新的ECMAScript提出了Class的概念,我们却没有怎么用 就单以C#与Java来说,要到真正理解面向对象的程度也是要花一点功夫的,特别是初学的同学往往意识不到面向对象的好处,因为我们编码的流程是这样的 ① 面向过程 这个时候,我们要思想一个东西,往往就用一个大代码段完成了 ② 方法重用 我们有时候再也受不了重复的代码在一个地方存在了,于是这个时候我们会将相同的逻辑抽象为一个方法 ③ 当代码达到一…
上一篇我们创建了敌人的坦克和自己的坦克,接下来就应该让坦克发子弹了,我们下面来看一下如何让我们的坦克发出子弹. 前面我们用面向对象的思想对Tank进行了封装,又利用对象冒充实现了我们的坦克和敌人的坦克,仿照这种方式我们是不是也应该封装一个Bullet,答案是肯定的.好吧,那么我们再想想这个Bullet"类“都应该封装什么东西呢?位置应该有吧.子弹飞行的方向应该有吧.飞行的速度也应该有吧.自己飞出去的动作应该有吧.好啦,大概就这些,封装后的Bulle”t类“如下: //子弹类 function B…