摘要: 例子 select X from table where 1=2 and 1=2 or 1=1; return true; select X from table where 1=2 and (1=2 or 1=1); return false 原文:http://www.cnblogs.com/n 阅读全文
posted @ 2017-03-09 10:32 duyunchao 阅读(7303) 评论(0) 推荐(0) 编辑