js sapn和input是同一级别元素吗？

Question

<div class="form-group col-md-4"> <label class="col-md-4 control-label" style="padding-top: 0px">商户所属机构</label> <div class="col-md-8"> <div class="input-group"> <input type="text" class="form-control" id="messjg" readonly="true" name="messjg"> <span class="input-group-btn"> <button class="btn default" type="button" id="messjgbtn"> <i class="fa fa-calendar"></i> </button> </span> </div> </div> </div>$("#messjgbtn").click(function() { name = this.parentNode.parentNode.childNodes[1].id; SendDataandSetTree("#brch_tree","#qryBrch"); });

Answer 1

不是