shit layui & bugs use is not useful at all! http://www.layui.com/demo/form.html layui.use(["form", "layer"], function() { let form = layui.form, layer = layui.layer; }); layui.use([], function() { let form = layui.form, layer = lay
-- 首先,以超级管理员的身份登录oracle sqlplus sys/bjsxt as sysdba --然后,解除对scott用户的锁 alter user scott account unlock; --那么这个用户名就能使用了. --(默认全局数据库名orcl) 1.select ename, sal * 12 from emp; --计算年薪 2.select 2*3 from dual; --计算一个比较纯的数据用dual表 3.select sysdate from dual; -