请问下主板排线怎么分正负极

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select * from tbl_Articles WHERE ArticleID=1445826 LIMIT 0,1
select * from tbl_Articles_data WHERE ArticleID=1445826 LIMIT 0,1
select * from tbl_Articles_sphinx where id=1445826 LIMIT 0,1
SELECT ArticleID,Title FROM tbl_Articles WHERE ArticleID IN(1109983,1102642,1089644,1101623,1068102,1088561,1128863,1089150,1092804,1128631,1041659,1113514,1120805,1118925,1078286,1079027,1104280,1084865,1125660,1123957,1080649,1096338,1043756,1103307,1117914,1090440,1128021,1102348,1066292,1097743) ORDER BY field (ArticleID,1109983,1102642,1089644,1101623,1068102,1088561,1128863,1089150,1092804,1128631,1041659,1113514,1120805,1118925,1078286,1079027,1104280,1084865,1125660,1123957,1080649,1096338,1043756,1103307,1117914,1090440,1128021,1102348,1066292,1097743)