hsn0755的专栏

 1.#region 后面 按“tab”键就生成完整的  region

--添加列ALTER TABLE t ADD Mycolumn int identity(1,1)||not null default(0)--删除列alter table t drop column Mycolumn --修改列alter table t alter column Mycolumn varchar(20) not null--将表中的数据改为为小数update tset gr

function startTime(){var today=new Date()var h=today.getHours()var m=today.getMinutes()var s=today.getSeconds()// add a zero in front of numbersm=checkTime(m)s=checkTime(s)document.getElementById(txt