var foo = function(){ var a =3,b=5; var bar = function(){ var b=7,c=11; alert("111a="+a+";b="+b+";c="+c); //第二个输出,此时a=3;b=7;c=11 a += b + c; alert("222a="+a+';b='+b+";c="+c); //第三个输出,此时a=21;b=7;c=11 }; ale…
订单表.与订单信息表(多个订单信息列有同一个订单id) 查出全部订单以及其信息并依照订单分页 select * from( select a. * , (DENSE_RANK() OVER(ORDER BY id DESC)) AS numindex from( SELECT o. * , DENSE_RANK() OVER(ORDER BY o.id DESC) AS rn from order o ) a where rn <= 10 ) where numindex > 0 查出全部订单…