什么是基尼系数

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select * from tbl_Articles WHERE ArticleID=3267945 LIMIT 0,1
select * from tbl_Articles_data WHERE ArticleID=3267945 LIMIT 0,1
select * from tbl_Articles_sphinx where id=3267945 LIMIT 0,1
SELECT ArticleID,Title FROM tbl_Articles WHERE ArticleID IN(1746017,3478770,856644,3477415,642386,928989,615651,469793,3034578,846990,787784,990397,1913851,836631,1415945,3522400,390447,572738,1165984,1068309,497180,2601242,667585,649550,461297,1083687,1946023,868047,3375413,566735) ORDER BY field (ArticleID,1746017,3478770,856644,3477415,642386,928989,615651,469793,3034578,846990,787784,990397,1913851,836631,1415945,3522400,390447,572738,1165984,1068309,497180,2601242,667585,649550,461297,1083687,1946023,868047,3375413,566735)