本文实例为大家分享了js实现幸运抽奖九宫格大转盘效果,供大家参考,具体内容如下
实现代码:
<!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>
以上就是本文的全部内容,希望对大家学习javascript程序设计有所帮助。
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