圆盘抽奖HTML5+JS编写

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引入JS
- 3.0.0 2.2.0 2.1.4 2.1.3 2.1.2 2.1.1 2.1.0 2.0.3 2.0.2 2.0.1 2.0.0 1.12.0 1.11.3 1.11.2 1.11.1 1.11.0 1.10.2 1.10.1 1.10.0 1.9.1 1.9.0 1.8.3 1.8.2 1.8.1 1.8.0 1.7.2 1.7.1 1.7 1.6.4 1.6.2 1.6.1 1.4.4 1.4.3 1.4.2 1.4.1 1.4.0
- 1.7.3 1.7.2 1.7.1.0 1.7.0.0
- 2.0.0-beta.0 2.0.0-alpha.55 1.5.0-rc.0 1.4.8 1.4.0 1.3.20 1.2.29 1.1.5 1.0.8
- 1.8.3 1.7.0 1.6.0 1.5.2 1.4.4 1.3.3 1.2.4 1.1.7
- 1.10.4 1.9.7 1.8.10 1.7.8 1.6.3 1.5.4 1.4.6 1.3.3
- core1.6.0 core-compat1.6.0 core1.5.2 core-compat1.5.2 core-full-compat-yc1.4.5 core-full-compat1.4.5 core-full-nocompat-yc1.4.5 core-full-nocompat1.4.5
- 1.4.2 1.4.1 1.4.0 1.3.0 1.2.0 1.1.0
- 3.7.3 3.7.2 3.7.1 3.7.0 3.7 3.6.2 3.6.1 3.6

引入框架
- 1.4.5 1.4.4 1.4.3 1.4.2 1.4.1 1.4.0 1.3.2
- 1.11.4 1.11.3 1.11.2 1.11.1 1.11.0 1.10.4 1.10.3 1.10.2
- 3.3.6 3.3.5 3.3.0 3.2.0 2.3.2

jerry

HTML代码

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<!DOCTYPE html>
<html>
<head>
<meta charset="UTF-8">
<title>圆盘抽奖HTML5编写的</title>
<style>
#bg {
	position:relative;
	height:250px;
}
#bg div {
	background-color:#a00;
	width:50px;
	height:50px;
	position:absolute;
}
</style>
</head>
<body>
<div id='info'></div>
<div id='bg'></div>
<div id='control'>
<div id='start'>start</div>
<div id='end'>end</div>
</div>
<div id='show'></div>
<script type="text/javascript">
var dom_bg = document.getElementById('bg')
	,timer = null
	,speed = 300
	,index = 0
	,field 
	,dom_field =[]
	,stepall
	,stepfast = 7
	,stepslow
	,stepping =0
	,selected
	,running = false
	,stop = false
	,flag = false;
function setup(){
	drawBg();
	initField();
}
function drawBg(){
	for(var i=0;i<5;i++){
		for(var j=0;j<5;j++){
			if(i==0||i==4||j==0||j==4){
				var div = document.createElement('div');
				div.style.left = i*50 + 'px';
				div.style.top = j*50 + 'px';
				div.innerText = i + '-' + j;
				div.id = 'cell-'+i+'-'+j;
				dom_bg.appendChild(div);
			}
		}
	}
}
function initField(){
	field = ['cell-0-0','cell-1-0','cell-2-0','cell-3-0','cell-4-0','cell-4-1',
	         'cell-4-2','cell-4-3','cell-4-4','cell-3-4','cell-2-4','cell-1-4',
	         'cell-0-4','cell-0-3','cell-0-2','cell-0-1'];
	for(var i=0;i<16;i++){
		dom_field.push(document.getElementById(field[i]));
	}
}
function rotate(){
	if(!flag && stepping>7){
		clearTimer();
		speed = 100;
		timer = setInterval(rotate,speed);
	}
	if(flag && stepping > stepslow && stepping <stepall){
		clearTimer();
		speed = 300;
		timer = setInterval(rotate,speed);
	}
	if(index ==16){
		index = 0;
	}
	if(flag && stepping == stepall){
		clearTimer();
		happy();
	}
	eraseCell();
	drawCell();
	index++;
	stepping++;
}
function eraseCell(){
	var pre = index -1;
	if(pre<0){
		pre = 15;
	}
	dom_field[pre].style.backgroundColor = '#a00';
}
function drawCell(){
	dom_field[index].style.backgroundColor = '#613';
}
function createStop(){
	selected = Math.floor(Math.random() * 15);//从0-15个数字中选   想zb在这控制一下。
	var circle = Math.floor(Math.random()*3) + 2;
	var c_step = circle *16;
	var   actualIndex = stepping%16;
	stepall =  selected - actualIndex + c_step;
	flag = true;
	stepslow = stepall - 7;
	stepping = 0;
}
function happy(){
	document.getElementById("show").innerText = selected + '选上了';
}
function startClick(){
	if(running){
		return;
	}
	running= true;
	timer = setInterval(rotate,speed);
}
function endClick(){
	if(stop){
		return;
	}
	stop = true;
	clearTimer();
	createStop();
	timer = setInterval(rotate,speed);
}
function clearTimer(){
	clearInterval(timer);
	timer = null;
}
setup();
document.getElementById('start').addEventListener('click',startClick,false);
document.getElementById('end').addEventListener('click',endClick,false);
</script>
</body>
</html>

CSS代码

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JS代码

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简介

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名称

圆盘抽奖HTML5+JS编写

分类

HTML5代码

描述

JavaScript+HTML5共同实现的简单网页抽奖——圆盘抽奖，实际上不是圆盘啊，是方圈哈，点击“Start”文字可开始抽奖，停止时候我好像觉得是按按键盘上的“Esc”键，转盘停止后会显示出抽奖结果。