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string userpossword; SqlConnection conn = new SqlConnection("server=.\\SQL2005;uid=sa;pwd=sa;database=TongXunLuDB"); string strcon = "select userpassword from UserLoginInfo where username='admin'"; conn.Open(); SqlCommand cmd = new SqlCommand(strcon,conn); SqlDataReader dr = cmd.ExecuteReader() ; userpossword = dr["userpassword"].ToString(); return userpossword; ÕâÊÇÁ¬½ÓµÄº¯Êý£¬Á¬½ÓÓ¦¸ÃûÓÖÎÊÌ⣬¾ÍÊÇdatareader±äÁ¿ÖÐûÓÐÖµ£¬ÔÚ²éѯ·ÖÎöÆ÷ÖÐÖ´ÐÐÉÏÃæµÄSQLÓï¾ä¿ÉÒÔ²é³öÀ´½á¹û£¬µ«Êǵ½Õâ¾ÍûÓнá¹û£¬drÀïÃæµÄ×Ö¶ÎûÓÖÎÊÌ⣬Õâµ½µ×ÎªÊ²Ã´ÄØ£¬Õâô¼òµ¥µÄµØ·½£¬£¬£¬
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