手机端转盘抽奖代码分享_javascript技巧

.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;}

$(".turntableWap .table").css({"height":$(".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; } } })