{ field: "opt", title: "操作", width: 250,
                      formatter: function() {
                          //var a = '<input id="btnSeen" class="easyui-linkbutton" type="button" value="处理" onclick="fnDataBind()"/>';

                      var a = '<a id="btnSeen" href="javascript:void(0);"  class="easyui-linkbutton " onclick="fnDataBind()">处理</a>';
                        
                          return a;

                      }
                  }

jquery datagrid 列【操作】 【处理】按钮没有显现出class=“easyui-linkbutton” 的样式。