{ display: '创建时间', name: 'CreateDate', width: 160, type: 'date' },                { display: '简介', name: 'HIntro', width: 260 }                ], url: "../../core/SetSystem.do?ActionName=QueryHospital", pageSize: 10, rownumbers: true, dateFormat: "yyyy-MM-dd",

type:'current'修改为dat

同时添加：dateFormat: "yyyy-MM-dd",