Returns an AnimatorStateInfo with the information on the current state.
代码如下：
public class AnimationAutoDestory : MonoBehaviour {
public float delay = 1f;
// Use this for initialization
void Start () {
Destroy(gameObject, this.GetComponent<Animator>().GetCurrentAnimatorStateInfo(0).length + delay);
}
// Update is called once per frame
void Update () {
}
}