使用格式如下：
<table id="table" class="easyui-datagrid" style="600px;height:250px" title="图标" iconCls="icon-save">
也可以用于其他地方，这是最简单的使用方式。
iconCls="icon-add"
iconCls="icon-edit"
iconCls="icon-save"
iconCls="icon-reload"
iconCls="icon-remove"
iconCls="icon-blank"
（空白图片，或者无图片显示）
iconCls="icon-cut"
iconCls="icon-ok"
iconCls="icon-no"
iconCls="icon-cancel"
iconCls="icon-search"
iconCls="icon-print"
iconCls="icon-help"
iconCls="icon-undo"
iconCls="icon-redo"
iconCls="icon-back"
iconCls="icon-sum"
iconCls="icon-tip"
iconCls="icon-next"
iconCls="icon-check"
iconCls="icon-publish"
iconCls="icon-mini-add"
iconCls="icon-mini-edit"
iconCls="icon-mini-refresh"
