void Update() { //按A全屏 if (Input.GetKey(KeyCode.A)) { Screen.SetResolution(1366, 768, true); //设置分辨率 Screen.fullScreen = true; //设置成全屏, } // 按ESC退出全屏 if (Input.GetKey(KeyCode.Escape)) { Screen.fullScreen = false; //退出全屏 } }