delete from TableName; //清空数据 update sqlite_sequence SET seq = where name ='TableName';//自增长ID为0 Sample: DatabaseHelper helper = DatabaseHelper.getHelper(context); itemDaoOpe = helper.getDao(Item.class); itemDaoOpe.queryRaw("delete from item");…
方法1:遍历页面元素 /* 清空FORM表单内容 id:表单ID*/ function ClearForm(id) { var objId = document.getElementById(id); if (objId == undefined) { return; } for (var i = 0; i < objId.elements.length; i++) { if (objId.elements[i].type ==…
js方式清空表单数据的两种方式 方法1:遍历页面元素 /* 清空FORM表单内容 id:表单ID*/ function ClearForm(id) { var objId = document.getElementById(id); if (objId == undefined) { return; } for (var i = 0; i < objId.elements.length; i++) { if (objId.ele…