斜率为1的倾斜角是多少

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select * from tbl_Articles WHERE ArticleID=711487 LIMIT 0,1
select * from tbl_Articles_data WHERE ArticleID=711487 LIMIT 0,1
select * from tbl_Articles_sphinx where id=711487 LIMIT 0,1
SELECT ArticleID,Title FROM tbl_Articles WHERE ArticleID IN(1062364,1114000,1123823,1074867,1061044,1372524,993213,1054676,1086582,1111368,1077976,1062712,1051045,1052311,1049062,1048110,1120410,1128521,1045314,997640,1089263,1067327,1111722,1064613,1126198,1058843,1070498,1117980,983947,1081835) ORDER BY field (ArticleID,1062364,1114000,1123823,1074867,1061044,1372524,993213,1054676,1086582,1111368,1077976,1062712,1051045,1052311,1049062,1048110,1120410,1128521,1045314,997640,1089263,1067327,1111722,1064613,1126198,1058843,1070498,1117980,983947,1081835)