JS实现模糊查询带下拉匹配效果

<!------------搜索框模糊查询带下拉匹配效果html---------------------->
<div class="gover_search">
  <div class="gover_search_form">
    <form action="#" method="post" name="searchform" id="searchform" class="searchinfo">
      <ul>
        <li>
          <input type="text" id="tt" value="" class="text" autocomplete="off" />
          <p class="search"><img src="img/search-1.png" alt=""></p>
          <p class="camera"><img src="img/camera.png" alt=""></p>
        </li>
        <li class="searchBtns-1"><img src="img/searchBtn.png" alt=""></li>
      </ul>
    </form>
  </div>
</div>

.fl {float: left;}
.fr {float: right;}
.clearfix:after {  content: '';
  display: block;
  clear: both;
  visibility: hidden;
  height: 0;
}
.clearfix { zoom: 1}
.mar0 { margin: 0 auto;}
.pos1 {position: relative;}
input {
  border: none;
  outline: none;
}
.w100 {width: 100%;}
.gover_search{
 width: 420px;
 position: relative;
 border-radius: 20px;
 height: 42px;
 border: 2px solid #fb6910;
 background:#fff;
 margin-top: 50px;
 margin-left: 90px;
}
.searchinfo ul{
 list-style: none;
}
.gover_search_form {
 height: 37px;
 width: 420px;
 position: relative;
}
/*输入框*/
.searchinfo .text{
 margin: 0;
 width: 334px;
 height: 38px;
 outline: none;
 vertical-align: middle;
 float: left;
 padding-left: 27px;
 line-height: 40px;
 margin-left: 16px;
}
/*搜索按钮*/
.searchinfo .button {
 width: 120px;
 height: 40px;
 border: none;
 background-color: #4b140d;
 color: #fff;
 font-size: 19px;
 font-weight: bold;
 outline: none;
 float: left;
}
/*<!--隐藏的搜索框下拉列表-->*/
.bigautocomplete-layout{
 position: absolute;
 z-index: 999;
 left: 0px;
 max-height: 260px;
 overflow-y: auto;
 overflow-x: hidden;
 top: 213px !important;
 width: 336px !important;
 border: 1px solid #ccc;
 border-top: none;
 display: none;
 color: #004080;
 background-color: #fff;
}
.bigautocomplete-layout table{
 width:336px !important;
}
.bigautocomplete-layout table tr{
 margin-bottom:5px !important;
 cursor:pointer;
}
.bigautocomplete-layout table tr td{
 height: 25px !important;
 width: 336px !important;
 padding:0 10px !important;
 line-height: 25px !important;
}
.bigautocomplete-layout table tr:hover{
 background-color:#fb6910 !important;
 color:#fff;
}
.bigautocomplete-layout table tr:hover td div{
 color:#fff;
}
.bigautocomplete-layout table tr:hover td div span{
 color:#fff;
}
/*搜索框下拉列表关键字数量*/
.keyRightSpan{
 float: right;
 display: block;
 width: auto;
 height: 25px !important;
 line-height: 25px !important;
 padding-right:8px
}
.ct{
 background-color: #fff;
}
/*关闭搜索框下拉列表按钮*/
.search {
 width: 22px;
 height: 22px;
 position: absolute;
 top: 9px;
 left: 12px;
 z-index: 2;
}
.search img {
 width: 100%;
 height: 100%;
}
.camera {
 width: 22px;
 height: 22px;
 position: absolute;
 top: 9px;
 right: 80px;
 z-index: 2;
}
.camera img {
 width: 100%;
 height: 100%;
}
.searchBtn {
 width: 70px;
 height: 40px;
 position: absolute;
 top: 0px;
 right: 0px;
 z-index: 2;
}
.searchBtn img {
 width: 100%;
 height: 100%;
}

<script src="js/jquery-3.1.1.js"></script>
<script src="js/index.js"></script>
<script src="js/jquery.bigautocomplete.js"></script>

// 隐藏的搜索框下拉列表
$(function () {
  var num = 0;
  $("#tt").bigAutocomplete({
    width: 543,
    data: [{title: "牛栏山<span class='keyRightSpan'>约5个结果</span>", result: {ff: "qq"}},
      {title: "郎酒<span class='keyRightSpan'>约2个结果</span>"},
      {title: "茅台<span class='keyRightSpan'>约4个结果</span>"},
      {title: "五粮液<span class='keyRightSpan'>约2个结果</span>"},
      {title: "水井坊<span class='keyRightSpan'>约7个结果</span>"},
      {title: "汾酒<span class='keyRightSpan'>约3个结果</span>"},
      {title: "洋府<span class='keyRightSpan'>约2个结果</span>"},
      {title: "董酒<span class='keyRightSpan'>约5个结果</span>"},
      {title: "剑南春<span class='keyRightSpan'>约2个结果</span>"},
      {title: "劲酒<span class='keyRightSpan'>约8个结果</span>"}],
    callback: function (data) {
      console.log(data.title);
    }
  });
})