向量的模是什么

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select * from tbl_Articles WHERE ArticleID=341267 LIMIT 0,1
select * from tbl_Articles_data WHERE ArticleID=341267 LIMIT 0,1
select * from tbl_Articles_sphinx where id=341267 LIMIT 0,1
SELECT ArticleID,Title FROM tbl_Articles WHERE ArticleID IN(1101319,1132757,1092976,1086270,1084917,1071077,1526498,1077695,1110608,1102466,1077960,1076824,1065449,1078428,1076790,1100308,1085906,1074820,1096995,1062602,1098809,1107022,1068212,1104045,1096120,1092040,1069477,1080444,1126760,1110554) ORDER BY field (ArticleID,1101319,1132757,1092976,1086270,1084917,1071077,1526498,1077695,1110608,1102466,1077960,1076824,1065449,1078428,1076790,1100308,1085906,1074820,1096995,1062602,1098809,1107022,1068212,1104045,1096120,1092040,1069477,1080444,1126760,1110554)