循环select和取赋值

bootstrap：

<!--列表容器-->

<div class="panel-body"  style="position:relative;">
    <form id="searchForm">
    </form>
</div>

 var html = "";
 for (var m = 1; m < Math.ceil(dataList.length/3)+1; m++) {
     html += '<div class="row form-inline form-group" >';
     for (var n = 1; n < 4; n++) {
        html += '<div class="col-lg-4 col-md-4 col-xs-4 col-sm-4">';
        html += '<select  class="form-control" style="width: 30%;text-align: center;background-color: #6495ED" onchange="changeSelect()">';
        html += ' <option value="">---请选择---</option>';
        for (var i = 0; i < dataList.length; i++) {
             html += ' <option value="' +dataList[i].value+ '">' +dataList[i].name+ '</option>';
        }
        html += '</select>';
        html += '<span type="text" class="form-control" aria-describedby="basic-addon1" style="width: 30%;text-align: left"></span>';
        html += '</div>';
     }
       html += '</div>';
  }
 $("#searchForm").html(html);

for (var k = 0; k < document.getElementsByTagName("select").length; k++){
     if ( document.getElementsByTagName("select")[k].value == price.symbol){
         document.getElementsByTagName("span")[k].innerHTML = price.Price;
     }
}