Question

unity3d问题：“未将对象引用设置到对象的实例”

using UnityEngine;
using System.Collections;

public class shibingkongzhi : MonoBehaviour {
public Texture2D[] shenti;
public Texture2D[] jiao;
public bool pd=false;
private shibingtuei tuei;
private shinbingshenti shen;
private Transform transtuei;
private Transform transshen;
private GameObject game;
public lei start;//引用enum类型
// Use this for initialization
void Start () {
transtuei=transform.FindChild("shibing");
transshen=transform.FindChild("jiao");
shen =transshen.GetComponent("shinbingshenti")as shinbingshenti;
tuei=transtuei.GetComponent("shibingtui")as shibingtuei;

}

// Update is called once per frame
void Update () {
if(Input.GetKeyDown(KeyCode.A)){
start=lei.leftwalk;
pd=true;
}
if(Input.GetKeyDown(KeyCode.D)){
start=lei.rightwalk;
pd=false;
}

switch(start){
case lei.leftwalk:
user(shenti,jiao,pd);
break;
case lei.rightwalk:
user(shenti,jiao,pd);
break;
default:
break;
}
}
void user(Texture2D[] a,Texture2D[] b,bool car){
shen.fame=a;//fame是tuextrue2D[]
tuei.fame=b;//fame是tuextrue2D[]
if(car){
shen.pd=true;
tuei.pd=true;
}else{
shen.pd=false;
tuei.pd=false;
}
return;
}
}
提示错误：
NullReferenceException: Object reference not set to an instance of an object
shibingkongzhi.user (UnityEngine.Texture2D[] a, UnityEngine.Texture2D[] b, Boolean car) (at Assets/Scripts/shibing/shibingkongzhi.cs:46)
shibingkongzhi.Update () (at Assets/Scripts/shibing/shibingkongzhi.cs:39)
我怀疑是user函数那声明有误，但不知道怎么改，求大神解答。

Answer 1

很有可能是某些值为空，你确定user函数中传入的参数都不为null？加个断点调试下吧。

Answer 2

数组对数组无法直接赋值，得展开元素 用foreach赋值，而且 你的Texture2D[] 类型的shenti没有初始化，只能算个声明，不是实际对象，函数必须传入实参，占内存的实参