欧拉公式有什么用

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select * from tbl_Articles_data WHERE ArticleID=549989 LIMIT 0,1
select * from tbl_Articles_sphinx where id=549989 LIMIT 0,1
SELECT ArticleID,Title FROM tbl_Articles WHERE ArticleID IN(394412,1403546,1686294,450564,466393,3281321,1143826,1437302,397894,785267,458459,453183,1126633,1185881,638082,3266921,3252298,83582,818618,3508139,1094712,3374542,80048,1083092,1172336,3480926,466679,526692,428491,557108) ORDER BY field (ArticleID,394412,1403546,1686294,450564,466393,3281321,1143826,1437302,397894,785267,458459,453183,1126633,1185881,638082,3266921,3252298,83582,818618,3508139,1094712,3374542,80048,1083092,1172336,3480926,466679,526692,428491,557108)