微信小程序实现转盘抽奖

  一等奖二等奖三等奖四等奖五等奖六等奖

 .index{ width: 300px; margin: 50rpx calc((100% - 300px) / 2); border:1px solid #ffcccc; border-radius: 50%; height: 300px; position: relative; overflow: hidden; font-size: 26rpx; } .xian{ width:300px; height:1px; background:#d6d6d6; position:absolute; top:150px; left:0; } .index>.xian:nth-child(2){ transform:rotateZ(60deg) } .index>.xian:nth-child(3){ transform:rotateZ(120deg) } .detail{ position: absolute; } .index>.detail:nth-child(4){ top:25px;left:132px; } .index>.detail:nth-child(5){ top:90px;left:225px; } .index>.detail:nth-child(6){ top:190px;left:225px; } .index>.detail:nth-child(7){ top:250px;left:132px; } .index>.detail:nth-child(8){ top:190px;left:40px; } .index>.detail:nth-child(9){ top:90px;left:40px; } .index>span{ width: 30px; height: 30px; background-color: #ffcccc; border-radius: 50%; position: absolute; left: 135px; top:135px; } .index>span::after{ content: ' '; width:0; height:0; border-right:6px solid transparent; border-left:6px solid transparent; border-bottom:26px solid #ffcccc; z-index: 10; position: absolute; left: 8.5px; top: -24px; }

 Page({ data: { random:'', trasn:0, }, zhuanin:function(e){ let that = this let num = 0 that.setData({ random:Math.floor(Math.random() * 360), trasn:0, }) let a = setInterval(function () { that.setData({ trasn:that.data.trasn+5 }) if(360 <= that.data.trasn){ that.data.trasn = 0 num = num + 1 } if(num == 3){ that.currinl() clearInterval(a) } },5) }, currinl:function(e){ let that = this let name = '' if(that.data.random == 30 || that.data.random == 90 || that.data.random == 150 || that.data.random == 210 || that.data.random == 330){ that.setData({ random:that.data.random + 1 }) } if(that.data.random <30 || 330 < that.data.random){ name='一等奖' }else if(that.data.random> 30 && that.data.random <90){ name = '二等奖' }else if(that.data.random > 90 && that.data.random <150){ name = '三等奖' }else if(that.data.random > 150 && that.data.random <210){ name = '四等奖' }else if(that.data.random > 210 && that.data.random <270){ name = "五等奖" }else{ name = "六等奖" } let b = setInterval(function () { that.setData({ trasn:that.data.trasn+2 }) if(that.data.random <= that.data.trasn){ wx.showToast({ title: name, icon: 'none', duration: 2000 }) clearInterval(b) } },10) }, })