Unity Engine documentationScript ReferenceUnityEngineUnityEngine.LowLevelPhysics2DPhysicsRelativeJointbodyAThe first body the joint constrains.阅读时间1 分钟最后更新于 1 个月前Definition Type: Property Namespace: UnityEngine.LowLevelPhysics2D Assembly: UnityEngine.Physics2DModule public PhysicsBody bodyA { get; }