实测过确实可行，注意如果没有刚体组件，实现方式会不一样

 

public class TestSMB : StateMachineBehaviour{    public override void OnStateMove(Animator animator, AnimatorStateInfo stateInfo, int layerIndex)    {        Vector3 velocity = animator.deltaPosition / Time.deltaTime;        var rigidbody = animator.GetComponent
      
       ();        if (rigidbody != null)        {            velocity.y = rigidbody.velocity.y;            rigidbody.velocity = velocity;        }    }}