UID:167802
UID:150200
UID:236342
UID:119126
UID:232894
UID:275058
UID:306489
janiusxw: :q<%wLs 好像给出的公式有点问题 h_yR$H&tX R=b*b/a t|QMS M?s k=-(a*a-b*b)/(a*a) (Nb1R"J` 前面要带符号 b.*4RL