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[Java教程]转盘抽奖


 

html部分

<div class="turntableWap top10">  <table border="0" cellspacing="0">   <tr>    <td tag="0"><img src="../images/4.png" alt="4元"></td>    <td tag="1" class="even"><img src="../images/6.png" alt="6元"></td>    <td tag="2"><img src="../images/8.png" alt="8元"></td>    <td tag="3" class="even"><img src="../images/11.png" alt="11元"></td>   </tr>   <tr>    <td tag="13" class="even"><img src="../images/13.png" alt="13元"></td>    <td colspan="2" rowspan="3" class="zpBtn"><img src="../images/zpBtn.jpg" /></td>    <td tag="4"><img src="../images/40.png" alt="40元"></td>   </tr>   <tr>    <td tag="12"><img src="../images/80.png" alt="80元"></td>    <td tag="5" class="even"><img src="../images/125.png" alt="125元"></td>   </tr>   <tr>    <td tag="11" class="even"><img src="../images/250.png" alt="250元"></td>    <td tag="6"><img src="../images/400.png" alt="400元"></td>   </tr>   <tr>    <td tag="10"><img src="../images/1000.png" alt="1000元"></td>    <td tag="9" class="even"><img src="../images/iphone6.png" alt="iphone6"></td>    <td tag="8"><img src="../images/Thank2.png" alt="谢谢惠顾"></td>    <td tag="7" class="even"><img src="../images/500.png" alt="500元"></td>   </tr>  </table>  </div>

css部分,由于做的这个转盘是手机端的,采用的响应式布局

.turntableWap{ padding:1rem; background:url(../images/zpTabBg.jpg) no-repeat center; background-size:100% 100%;}.turntableWap table{ width:100%;}.turntableWap table td{ vertical-align:middle; text-align:center; background-color:#ecd295;}.turntableWap table td img{ width:100%; }.turntableWap table td.even{background-color:#f6e8c5}.turntableWap table td.active{ background-color:#ed9351;}

js部分

$(".turntableWap .table").css({"height":$(".turntableWap .table").width()});//做响应式布局,外table是等宽高var isdo = true;$(".zpBtn").on("click",function(){  var num = 13;//后台传入的奖品  var rotaNum = 14;//奖品数量  var count = -1;//高亮显示,旋转特效  var jishi = 0;//计时时间段  var speed = 50;//快速速度  var speedSlow = 200;//慢速速度  choujiang()//抽奖方法调用,在此处做判断调用choujiang(),并给num值  function choujiang(){    if(isdo){      isdo=false;      $(".turntableWap").css({"background-image":"url(../images/1.gif)"})      var c = setInterval(function(){        if(count >12){          count = -1;        }        count = count+1;        jishi = jishi+1;        $(".turntableWap td").removeClass("active");        $(".turntableWap td[tag="+count+"]").addClass("active");        if(jishi>rotaNum*2){          clearInterval(c);          c = setInterval(function(){            count = count+1;            jishi = jishi+1;            $(".turntableWap td").removeClass("active");            $(".turntableWap td[tag="+count+"]").addClass("active");            if(jishi>num+rotaNum*2){              clearInterval(c);              $(".turntableWap").css({"background-image":"url(../images/zpTabBg.jpg)"})              isdo = true;              var jp = $(".turntableWap td[tag="+count+"]").find("img").attr("alt")              alert("恭喜您获取"+jp)            }          },speedSlow)        }      },speed)    }else{      return;    }  }})