摘要： 1、直接看代码：Ext.BLANK_IMAGE_URL = "extjs/resources/images/default/s.gif"; var storeUnit = new Ext.data.JsonStore({ fields: ['units_code', 'units_name'], url : "../Cost_JsonDb.ashx?tablename=cost_units", autoLoad:true, root : "units"});// 单位（计量单位）的下拉列表var com 阅读全文