ExecuteScalar 要求已打开且可用的 Connection。连接的当前状态为已关闭。
posted @ 2015-03-05 15:50 UnLike 阅读(3753) 评论(0) 推荐(0)
posted @ 2015-03-05 15:50 UnLike 阅读(3753) 评论(0) 推荐(0)
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posted @ 2014-09-03 22:37 UnLike 阅读(193) 评论(0) 推荐(0)
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posted @ 2014-09-02 16:12 UnLike 阅读(2188) 评论(3) 推荐(4)
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posted @ 2014-08-28 23:22 UnLike 阅读(905) 评论(1) 推荐(1)
posted @ 2014-08-27 23:15 UnLike 阅读(384) 评论(0) 推荐(0)