标签:报错 art deb 显示 orm one star cts unit
GameObject.Find()
优点:
使用简单方便
不会因为重名而报错,同时查找的是自上而下的第一个物体
缺点
不能查找被隐藏的物体,否则出现“空引用异常”,这是很多新人在查找出现空引用bug的原因。
全局查找(遍历查找),查找效率低,很消耗性能。
代码演示:
using System.Collections;
using System.Collections.Generic;
using UnityEngine;
public class GameObjectFind : MonoBehaviour {
private GameObject thing;
void Start () {
thing = GameObject.Find("C4");
thing.name = "thing";
}
}
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Transform.Find(),通过Transform组件查找子物体。
用这个方法查找物体时,根节点一定要处于“显示”状态,不能被隐藏。
用它查找孙物体及孙孙物体,一定要使用“绝对路径”,否则出现“空引用异常”。
代码演示:
using System.Collections;
using System.Collections.Generic;
using UnityEngine;
public class TransformFind : MonoBehaviour {
private Transform m_Transform;
private GameObject one;
private GameObject two;
void Start () {
m_Transform = gameObject.GetComponent<Transform>();
one = m_Transform.Find("D2").gameObject;
two = m_Transform.Find("D2/D3").gameObject;
Debug.Log(one.name);
Debug.Log(two.name);
}
}
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GameObject.FindGameObjectWithTag()和GameObject.FindGameObjectsWithTag(),通过Tag标签查找物体。
GameObject.FindGameObjectsWithTag():通过Tag标签查找到一组物体,返回一个数组。
GameObject.FindGameObjectWithTag():查找到这类tag标签,自上而下第一个物体。
代码演示:
using System.Collections;
using System.Collections.Generic;
using UnityEngine;
public class TagFind : MonoBehaviour {
private GameObject thing;
private GameObject[] things;
void Start () {
things = GameObject.FindGameObjectsWithTag("Player");
thing = GameObject.FindGameObjectWithTag("Player");
Debug.Log(things.Length);
Debug.Log(thing.name);
}
}
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FindObjectsOfType()
FindObjectsOfTypeAll():返回指定类型的对象列表。
代码演示:
using System.Collections;
using System.Collections.Generic;
using UnityEngine;
public class FindObjectOfType : MonoBehaviour {
private GameObject[] things;
private GameObject thing;
void Start () {
things = FindObjectsOfType<GameObject>();
thing = FindObjectOfType<GameObject>();
Debug.Log("第一个" + thing.name);
for(int i = 0; i < things.Length; i++)
{
Debug.Log(things[i].name);
}
}
}
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标签:报错 art deb 显示 orm one star cts unit
原文地址:https://www.cnblogs.com/hyhy904/p/10977561.html