电容的正负极怎么看

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select * from tbl_Articles_data WHERE ArticleID=594269 LIMIT 0,1
select * from tbl_Articles_sphinx where id=594269 LIMIT 0,1
SELECT ArticleID,Title FROM tbl_Articles WHERE ArticleID IN(1086122,1087793,1043173,1063159,1084667,1042562,1061044,1078737,1085460,1092972,1042943,1065928,1097975,1091061,1092387,1055055,1086698,1076523,1004983,1087863,1077976,1087317,1065181,1081687,1067397,1049836,1083215,1086348,1043021,1070014) ORDER BY field (ArticleID,1086122,1087793,1043173,1063159,1084667,1042562,1061044,1078737,1085460,1092972,1042943,1065928,1097975,1091061,1092387,1055055,1086698,1076523,1004983,1087863,1077976,1087317,1065181,1081687,1067397,1049836,1083215,1086348,1043021,1070014)