Unity3D 改变对象下所有子对象的组件属性

//获取对象下所有子对象的Transform
        Transform[] allChildrenTransform = GameObject.Find("falali").GetComponentsInChildren<Transform>();
        foreach(Transform child in allChildrenTransform)
        {
            //do something
        }

        //获取对象下所有子对象的Renderer
        Renderer[] allChildren = GameObject.Find("falali").GetComponentsInChildren<Renderer>();
        foreach(Renderer child in allChildren)
        {
            child.materials[0].mainTexture = tex01;
        }