H5实现中奖记录逐行滚动切换效果

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本文实例为大家分享了H5逐行滚动切换效果的具体代码，供大家参考，具体内容如下

前端页面需先引入jquery

<!DOCTYPE html>
<html lang="en">
<head>
  <meta charset="UTF-8">
  <title>中奖记录跑马灯特效</title>
  <script src="../js/jquery-2.2.0.min.js"></script>
  <script src="../js/recordRoll.js"></script>
  <style>
    .box{
      width: 18rem;
      height: 15rem;
      margin: auto;
      background-color: cadetblue;
    }
    .record_title{
      text-align: center;
      width: 100%;
      height: 2rem;
      margin-top: 0.2rem;
      z-index: 2;
      background-color: cadetblue;
      vertical-align: middle;
    }
    .record_list{
      height: 11rem;
      overflow: hidden;
      background-color: cadetblue;
      text-align: left;
      margin-left: 1rem;
    }
  </style>
</head>
<body>
  <div class="box">
    <div class="record_title">
    <h1>中奖记录</h1>
    </div>
    <div class="record_list">
      <p>恭喜Ivy抽中10元话费</p>
      <p>恭喜LinDL抽中100元京东E卡</p>
      <p>恭喜Mary抽中40元电影票优惠券</p>
      <p>恭喜Ivy抽中30元话费</p>
      <p>恭喜金坎抽中50元话费</p>
      <p>恭喜Ivy抽中80元话费</p>
      <p>恭喜Ivy抽中200元话费</p>
      <p>恭喜慧林抽中5000元话费</p>
      <p>恭喜张敏抽中iPhone7</p>
      <p>恭喜Ivy抽中10元话费</p>
    </div>
  </div>
</body>
<script>
  $(document.body).ready(function(){
    $(".record_list").RollTitle({line:1,speed:800,timespan:1});
  });
</script>
</html>

利用定时器实现中奖记录逐行展示
recordRoll.js

/**
 * Created by lin on 2017/3/12.
 */
(function($){
  $.fn.extend({
    RollTitle: function(opt){
      if(!opt) var opt={};
      var _this = this;
      _this.timer = null;
      _this.lineH = _this.find("p:first").height();
      _this.line=opt.line?parseInt(opt.line,15):parseInt(_this.height()/_this.lineH,10);
      _this.speed=opt.speed,
      _this.timespan=opt.timespan;
      if(_this.line==0) this.line=1;

      _this.scrollUp=function(){
        _this.animate({
          marginTop:0
        },_this.speed,function(){
          for(i=1;i<=_this.line;i++){
            _this.find("p:first").appendTo(_this);
          }
          _this.css({marginTop:0});
        });
      }
      _this.hover(function(){
        clearInterval(_this.timer);
      },function(){
        _this.timer=setInterval(function(){_this.scrollUp();},_this.timespan);
      }).mouseout();
    }
  })
})(jQuery);

效果图：