23EasyUI 数据网格- 添加工具栏

<table id="tt" class="easyui-datagrid" style="width:600px;height:250px"
            url="data/datagrid_data.json"
            title="DataGrid with Toolbar" iconCls="icon-save"
            toolbar="#tb">
        <thead>
            <tr>
                <th field="itemid" width="80">Item ID</th>
                <th field="productid" width="80">Product ID</th>
                <th field="listprice" width="80" align="right">List Price</th>
                <th field="unitcost" width="80" align="right">Unit Cost</th>
                <th field="attr1" width="150">Attribute</th>
                <th field="status" width="60" align="center">Stauts</th>
            </tr>
        </thead>
    </table>
    <div id="tb">
        <a href="#" class="easyui-linkbutton" iconCls="icon-add" plain="true" "javascript:alert('Add')">Add</a>
        <a href="#" class="easyui-linkbutton" iconCls="icon-cut" plain="true" "javascript:alert('Cut')">Cut</a>
        <a href="#" class="easyui-linkbutton" iconCls="icon-save" plain="true" "javascript:alert('Save')">Save</a>
    </div>