unity3d给子物体添加MeshCollider

using UnityEngine;using System.Collections;public class AutoAddCollision : MonoBehaviour {    // Use this for initialization    void Start () {        ModelAddMeshCollider();    }    void ModelAddMeshCollider()    {        foreach (var render in transform.GetComponentsInChildren<MeshRenderer>())        {            render.gameObject.AddComponent<MeshCollider>();        }    }}