HTML文件

  <span style="float: left;">类&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;型:&nbsp;&nbsp;

        <select id="type" class="easyui-combobox" name="type" style="width: 90px;" data-options="required:false">

             <option value="1" selected="selected">安心帮卖</option>

             <option value="2">同步拍</option>

        </select>

    </span>

    <span style="float: right; margin-left: 66px;">

    <span id="auctionsFlag" style="display:none;">拍卖会场次:&nbsp;

        <select id="auctionId" class="easyui-combobox" name="auctionId" style="width: 244px;" data-options="required:false">

            <!-- <option value="" selected="selected">"　"</option> -->

        </select>

    </span>

    <span id="aucTime">拍卖时间:&nbsp;&nbsp;

        <input  type="text" id="startDate" style="width:110px;" class="easyui-datebox"/>

        &nbsp;&nbsp;至&nbsp;&nbsp;<input type="text" id="endDate" style="width:110px;" class="easyui-datebox"/>

    </span>

</span>

JS文件

    var typeFlag = 0;

    $("#type").combobox({

        onChange: function (n,o) {

            if(n==1){

                hidden_change();

            }else{

                view_change();

            }

        }

    });

    function hidden_change(){

        typeFlag = 0;

        $("#auctionsFlag").css("display","none");

        $("#aucTime").css("display","block");

    }

    function view_change(){

        typeFlag = 1;

        $("#auctionsFlag").css("display","block");

        $("#aucTime").css("display","none");

    }