unity中游戏物体获取的四种方式

1、

public GameObject cameraMain;
or
public Camera MainCamera;

2、

transform.Find(" GameObject(01)/FameObject ");  
//获取GameObject（01）下的GameObject

GameObject.Find(" Main Camera ");

3、

GameObject camera = GameObject.Find(" Main Camera ");

4

GameObject player = GameObject.FindWithTag(" Player ");    //根据标签进行查找