@[lijiaan](/user/149872) 理论上这样的圆是唯一的吧。
by StudyingFather @ 2020-01-13 00:23:43
估计他说的是精度？
by Seauy @ 2020-04-11 12:19:55
@[StudyingFather](/user/22030)
@[QuantumCheshireCat](/user/54591) 对啊
by _•́へ•́╬_ @ 2020-07-26 22:14:38