摘要:
JQuery通过获取各个元素的标签,id,Class 来设置或获取值The element Selector$("p")The #id Selector$("#ww")The .Class Selector$(".Class") 阅读全文
posted @ 2014-11-05 22:35
RichardWong
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摘要:
--两次对表A查询效率较低select top 10 * from A where ID not in (select top 30 ID from A)--外层查询没有对表A查询,效率大有提高select top 10 * from (select top 40 * from A order by... 阅读全文
posted @ 2014-11-05 22:31
RichardWong
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