Unity Engine documentationScript ReferenceUnityEngineUnityEngine.LowLevelPhysics2DPhysicsBodyPhysicsBody.BodyConstraintsPositionXConstrain motion along the X-axis.阅读时间1 分钟最后更新于 1 个月前Definition Type: Field Namespace: UnityEngine.LowLevelPhysics2D Assembly: UnityEngine.Physics2DModule PositionX = 1