Implementing the effect of the nine-square grid carousel based on javascript

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Implementing the effect of the nine-square grid carousel based on javascript_javascript skills

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May 16, 2016 pm 03:07 PM

The example in this article shares with you the js implementation of the lucky draw nine-square grid wheel effect for your reference. The specific content is as follows

Implementation code:

<!DOCTYPE html>
<html>
<head>
 <meta charset="utf-8">
 <title>九宫格大转盘</title>
 <style type="text/css">
/*reset*/
*{ padding:0; margin:0}
body{ height: 100%; width: 100%; font-size:12px; color:#333;}
ul{ list-style:none;}
/*demo*/
#lottery{width:400px;height:400px;margin:20px auto 0; position:relative;}
#lottery div{width:100px;height:100px;text-align:centerfont-size:24px;color:#333; float:left;}
#lottery .cent{ background:#C33;}
#lottery .lottery-unit-0{ background:#CC6;}
#lottery .lottery-unit-1{ background:#F99;}
#lottery .lottery-unit-2{ background:#CC6;}
#lottery .lottery-unit-3{ background:#F99;}
#lottery .lottery-unit-4{ background:#CC6;}
#lottery .lottery-unit-5{ background:#F99;}
#lottery .lottery-unit-6{ background:#CC6;}
#lottery .lottery-unit-7{ background:#F99;}
#lottery .lottery-unit-8{ background:#CC6;}
#lottery .lottery-unit-9{ background:#F99;}
#lottery .lottery-unit-10{ background:#CC6;}
#lottery .lottery-unit-11{ background:#F99;}

#lottery div.select{background:#F0F;}

#lottery .start{ position:absolute; left:100px; top:100px; height:200px; width:200px;background:#C33; font-size:30px; text-align:center; cursor:pointer; line-height:200px; color:#fff;}
</style>
</style>
</head>
<body> 
 <!--九宫格大转盘-->
 <div id="lottery">
  
  <div class="lottery-unit lottery-unit-0">1</div>
  <div class="lottery-unit lottery-unit-1">2</div>
  <div class="lottery-unit lottery-unit-2">3</div>
  <div class="lottery-unit lottery-unit-3">4</div>
  
  <div class="lottery-unit lottery-unit-11">12</div>   
  <div class="cent"></div>
  <div class="cent"></div>   
  <div class="lottery-unit lottery-unit-4">5</div>
  
  <div class="lottery-unit lottery-unit-10">11</div>   
  <div class="cent"></div>
  <div class="cent"></div>   
  <div class="lottery-unit lottery-unit-5">6</div>
 
  <div class="lottery-unit lottery-unit-9">10</div>
  <div class="lottery-unit lottery-unit-8">9</div>
  <div class="lottery-unit lottery-unit-7">8</div>
  <div class="lottery-unit lottery-unit-6">7</div>

  <div class="start" id="start">抽奖</div>
 </div>
</body>
<script type="text/javascript" src="http://apps.bdimg.com/libs/jquery/2.1.4/jquery.min.js"></script>
<script type="text/javascript">
$(function(){
 //九宫格大转盘
 var count=3;//可用次数 
 var i=null;//初始位置，
 var speed=80;//转动速度
 var ok=null;//产生0-11的整数，标记中奖位置
 var count=null;//总变化次数
 var nowcount=null;//当前的变化位置
 var n=5;//圈数
 var paly=false;
 var xq=0;
 function dong(){//利用递归模拟setinterval的实现 
 if(nowcount>count){
 setTimeout(function(){
 paly=false;
 alert("恭喜你，中了"+eval(ok)+"等奖");
 },500);
 }else{ 
 nowcount+=1;
 if(i>10){ 
 xq+=1; 
 if(xq==n-1){
  speed=300;
 }; 
 $(".lottery-unit").removeClass("select");
 $(".lottery-unit-11").addClass("select");
 i=0;
 }else{
 $(".lottery-unit").removeClass("select");
 $(".lottery-unit-"+i).addClass("select");
 i+=1;
 };
 setTimeout(dong,speed); 
 }; 
 
 }; 
 $(".start").click(function(){
 if(!paly){
 if(count==0){
 alert("已经没有机会，下次再来！");
 }else{
 ok=Math.floor((Math.random()*12));//产生0-11的整数，标记中奖位置
 count=n*12+ok;//总变化次数
 nowcount=0;//当前的变化位置
 i=0;//初始位置，
 paly=true;
 count-=1;
 dong();
 };
 
 }else{
 
 };
 
 }); 
});
</script>
</html>

The above is the entire content of this article. I hope it will be helpful to everyone in learning javascript programming.

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