摘要: select * from(select a as v from table1 where "条件" union all select b as v from table2 where "条件") order by v 阅读全文
posted @ 2015-01-13 12:58 Y-Y-J 阅读(175) 评论(0) 推荐(0)
摘要: "自适应网页设计"到底是怎么做到的?其实并不难。首先,在网页代码的头部,加入一行viewport元标签。 viewport是网页默认的宽度和高度,上面这行代码的意思是,网页宽度默认等于屏幕宽度(width=device-width),原始缩放比例(initial-scale=1)为1.0,即网页初... 阅读全文
posted @ 2015-01-13 08:21 Y-Y-J 阅读(113) 评论(0) 推荐(0)