代码按A，B切换材质球

using UnityEngine;

public class SwitchMaterial : MonoBehaviour

{

     public Material M1, M2; // 贴图

void Update()

{ if (Input.GetKey(KeyCode.A)) { this.transform.GetComponent<Renderer>().material = M1; }

if (Input.GetKey(KeyCode.B)) { this.transform.GetComponent<Renderer>().material = M2; }

}

}