怎样计算三角形的角度

页面:/news/view-2253770/ | 耗时:0.5436 s | 内存:1.89 MB | 查询:4 | 缓存读取:4 写入:0 | 加载文件:23
select * from tbl_Articles WHERE ArticleID=2253770 LIMIT 0,1
select * from tbl_Articles_data WHERE ArticleID=2253770 LIMIT 0,1
select * from tbl_Articles_sphinx where id=2253770 LIMIT 0,1
SELECT ArticleID,Title FROM tbl_Articles WHERE ArticleID IN(1094387,1097635,1092358,1069253,1049542,1102437,1081277,1115077,1112210,1063675,1054676,1091735,1103440,1085372,1109799,1108664,1106048,1084978,1102150,1076209,1046666,1049510,1079431,1112917,1119490,1055235,1108229,1114502,1109408,1062488) ORDER BY field (ArticleID,1094387,1097635,1092358,1069253,1049542,1102437,1081277,1115077,1112210,1063675,1054676,1091735,1103440,1085372,1109799,1108664,1106048,1084978,1102150,1076209,1046666,1049510,1079431,1112917,1119490,1055235,1108229,1114502,1109408,1062488)