路由器的四个插口分别有什么功能?

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select * from tbl_Articles WHERE ArticleID=889233 LIMIT 0,1
select * from tbl_Articles_data WHERE ArticleID=889233 LIMIT 0,1
select * from tbl_Articles_sphinx where id=889233 LIMIT 0,1
SELECT ArticleID,Title FROM tbl_Articles WHERE ArticleID IN(1127355,1124330,1123333,1105401,1052747,1127149,1077986,1049964,1077701,1131485,1103111,1082413,1126922,1077326,1048382,1131365,1132457,1103774,1071175,1101595,1073349,1130600,1101853,1103809,1087291,998876,1132841,1068858,1097585,1096483) ORDER BY field (ArticleID,1127355,1124330,1123333,1105401,1052747,1127149,1077986,1049964,1077701,1131485,1103111,1082413,1126922,1077326,1048382,1131365,1132457,1103774,1071175,1101595,1073349,1130600,1101853,1103809,1087291,998876,1132841,1068858,1097585,1096483)