extjs,清空treepanel数据. //调用 var rootNode = tree.getRootNode(); removeChildrenData(rootNode); //清理节点的数据 function removeChildrenData(node) { if (!node) {return;} while (node.hasChildNodes()) { removeChildrenRecursively(node.firstChild); node.removeChild(
mysql清空表数据并重置自增ID: ## 查看mysql> select * from work_order_company;mysql> show create table work_order_company; ## 清除mysql> delete from work_order_company;mysql> alter table work_order_company auto_increment=1; ## 此时可再次查看,自增状态无显示从1开始 mysql> sh
org.openqa.selenium.InvalidElementStateException: invalid element state: Element must be user-editable in order to clear it. 注意:(1)报上边的错误,原因是不是input框,不能进行clear和delete操作,要定位到input (2)clear清空数据,value值变为0:要想为空,用delete rowList.get(i).sendKeys(Keys.chord(
SQLite并不支持TRUNCATE TABLE语句 方式一: DELETE FROM [Tab_User] --不能将递增数归零 方式二: DELETE FROM sqlite_sequence WHERE name = ‘TableName’; --可以将递增数归零 详细看我从其他博友园子里扒来的介绍: SQL标准中有TRUNCATE TABLE语句,用来清空表的所有内容.但SQLite不支持这个语句.在SQLite中直接使用“DELETE FROM TableName”就可以了.对于大多数