Please try to set the 'header' property to custom the panel header.
<div class="easyui-panel" style="width:700px;height:200px;padding:10px;"
data-options="header:'#hh'">
</div>
<div id="hh">
<div class="panel-title f-row">
<div class="panel-tool" style="position:relative">
<a href="javascript:void(0)" class="icon-add" onclick="javascript:alert('add')"></a>
<a href="javascript:void(0)" class="icon-edit" onclick="javascript:alert('edit')"></a>
<a href="javascript:void(0)" class="icon-cut" onclick="javascript:alert('cut')"></a>
<a href="javascript:void(0)" class="icon-help" onclick="javascript:alert('help')"></a>
</div>
<div>Panel Header</div>
</div>
</div>