斜率相加等于0说明什么

页面:/news/view-2169942/ | 耗时:0.0335 s | 内存:1.89 MB | 查询:4 | 缓存读取:4 写入:0 | 加载文件:23
select * from tbl_Articles WHERE ArticleID=2169942 LIMIT 0,1
select * from tbl_Articles_data WHERE ArticleID=2169942 LIMIT 0,1
select * from tbl_Articles_sphinx where id=2169942 LIMIT 0,1
SELECT ArticleID,Title FROM tbl_Articles WHERE ArticleID IN(2240965,500128,625986,894183,1005238,1078015,2241675,1075751,2190322,1150395,573174,1119054,918884,2049158,1978491,1675855,1201283,1105048,1017119,1510182,645877,964829,1163324,2034352,1387818,649550,428747,813595,1034838,602443) ORDER BY field (ArticleID,2240965,500128,625986,894183,1005238,1078015,2241675,1075751,2190322,1150395,573174,1119054,918884,2049158,1978491,1675855,1201283,1105048,1017119,1510182,645877,964829,1163324,2034352,1387818,649550,428747,813595,1034838,602443)