private void Update()
    {
        float h = Input.GetAxis("Horizontal");
        float v = Input.GetAxis("Vertical");

        if (Mathf.Abs(h) > 0.1 || Mathf.Abs(v) > 0.1)
        {
            float newSpeed = Mathf.Lerp(anim.GetFloat("tSpeed"), 5.667f, Time.deltaTime * moveSpeed);
            anim.SetFloat("tSpeed", newSpeed);

            Vector3 targetDir = new Vector3(h,0,v);
            Vector3 nowDir = transform.forward;
            float angle = Vector3.SignedAngle(nowDir, targetDir, Vector3.up);

            print(angle);
            
            transform.Rotate(Vector3.up*angle*Time.deltaTime* rotateSpeed);
        }
        else
        {
            anim.SetFloat("tSpeed", 0);
        }
    }

这是我控制人物移动的代码，我在按下按钮后角色只会一卡一卡的往前移动很短的距离，但是动画已经正常往前在走了。unity版本是2018.3.6f1.