C# 为什么我不'；运行游戏时，在文本组件上看不到任何文本？

我想看看“Hello World”文本。但是什么都没有

如果使用

3D对象>3D文本

或

UI>Text

或

UI>Text-TextMeshPro

无论我使用的是什么文本组件，因为没有网格渲染器连接到它，所以我得到了一个例外，所以我要先向文本组件添加一个网格渲染器

但是我得到了一个例外，说没有TextMesh组件附加到新创建的文本上，所以我更改了这一行：

var textmesh = newText.GetComponent<TextMesh>();

var textmesh=newText.GetComponent（）；

到

var textmesh=newText.GetComponent（）；

但它仍然不起作用，比如说textmesh为null

因此，我将文本组件更改为UI>text 将MeshRenderer添加到文本中，现在不会出现异常/错误：

及

使用系统集合；
使用System.Collections.Generic；
使用UnityEngine；
使用UnityEngine.UI；
公共类AddTextToObject:MonoBehavior
{
公共UnityEngine.GameObject[]对象编号；
公共UnityEngine.GameObject文本；
公开发行股票；
公共bool rotateEnumbers=false；
公共浮子旋转速度=10f；
public bool textChild=false；
public bool textAbove=false；
public bool textinfort=false；
public bool textOnFaces=false；
私有列表newTexts=新列表（）；
私有网格渲染器；
私有向量3 newPos；
私有void Start（）
{
renderer=新网格渲染器[objectsToNumber.Length]；
for（int i=0；i

更新：

正在尝试使用TextMeshPro：

using System.Collections;
using System.Collections.Generic;
using UnityEngine;
using UnityEngine.UI;
using TMPro;

public class AddTextToObject : MonoBehaviour
{
    public UnityEngine.GameObject[] objectsToNumber;
    public UnityEngine.GameObject text;
    public float yPadding;
    public bool rotateNumbers = false;
    public float rotationSpeed = 10f;
    public bool textChild = false;
    public bool textAbove = false;
    public bool textInFront = false;
    public bool textOnFaces = false;

    private List<GameObject> newTexts = new List<GameObject>();
    private MeshRenderer[] renderer;
    private Vector3 newPos;

    private void Start()
    {
        renderer = new MeshRenderer[objectsToNumber.Length];

        for (int i = 0; i < objectsToNumber.Length; i++)
        {
            GameObject newText = Instantiate(text);
            renderer[i] = objectsToNumber[i].GetComponent<MeshRenderer>();

            if (textAbove == true)
            {
                newPos = new Vector3
                (
                 objectsToNumber[i].transform.position.x,
                 ((objectsToNumber[i].transform.position.y + renderer[i].bounds.extents.y) + yPadding),
                   objectsToNumber[i].transform.position.z
                 );
            }

            if (textInFront == true)
            {
                newPos = new Vector3
                (
                 ((objectsToNumber[i].transform.position.x + renderer[i].bounds.extents.x) + yPadding),
                 objectsToNumber[i].transform.position.y,
                   objectsToNumber[i].transform.position.z
                 );
            }

            newText.transform.position = newPos;
            newText.transform.SetParent(transform, false);
            newText.name = i.ToString();
            newText.tag = "Number";
            newTexts.Add(newText);
            var textmesh = newText.GetComponent<TextMeshProUGUI>();
            textmesh.transform.localRotation = Quaternion.Euler(0, -90, 0);

            if (textAbove == true)
            {
                textmesh.text = i.ToString();
            }

            if (textInFront == true)
            {
                textmesh.text = "Hello World";
            }
        }
    }

    private void Update()
    {
        if (rotateNumbers == true)
        {
            for (int i = 0; i < newTexts.Count; i++)
            {
                newTexts[i].transform.Rotate(Vector3.up, 10 * rotationSpeed * Time.deltaTime);
            }
        }
    }
}

使用系统集合；
使用System.Collections.Generic；
使用UnityEngine；
使用UnityEngine.UI；
使用TMPro；
公共类AddTextToObject:MonoBehavior
{
公共UnityEngine.GameObject[]对象编号；
公共UnityEngine.GameObject文本；
公开发行股票；
公共bool rotateEnumbers=false；
公共浮子旋转速度=10f；
public bool textChild=false；
public bool textAbove=false；
public bool textinfort=false；
public bool textOnFaces=false；
私有列表newTexts=新列表（）；
私有网格渲染器；
私有向量3 newPos；
私有void Start（）
{
renderer=新网格渲染器[objectsToNumber.Length]；
for（int i=0；i

但结果是文本与游戏对象不太接近。 文本“Hello World”应该像棍子一样贴在每个g上

using System.Collections;
using System.Collections.Generic;
using UnityEngine;
using UnityEngine.UI;

public class AddTextToObject : MonoBehaviour
{
    public UnityEngine.GameObject[] objectsToNumber;
    public UnityEngine.GameObject text;
    public float yPadding;
    public bool rotateNumbers = false;
    public float rotationSpeed = 10f;
    public bool textChild = false;
    public bool textAbove = false;
    public bool textInFront = false;
    public bool textOnFaces = false;

    private List<GameObject> newTexts = new List<GameObject>();
    private MeshRenderer[] renderer;
    private Vector3 newPos;

    private void Start()
    {
        renderer = new MeshRenderer[objectsToNumber.Length];

        for (int i = 0; i < objectsToNumber.Length; i++)
        {
            GameObject newText = Instantiate(text);
            renderer[i] = newText.GetComponent<MeshRenderer>();

            if (textAbove == true)
            {
                newPos = new Vector3
                (
                 objectsToNumber[i].transform.position.x,
                 ((objectsToNumber[i].transform.position.y + renderer[i].bounds.extents.y) + yPadding),
                   objectsToNumber[i].transform.position.z
                 );
            }

            if (textInFront == true)
            {
                newPos = new Vector3
                (
                 ((objectsToNumber[i].transform.position.x + renderer[i].bounds.extents.x) + yPadding),
                 objectsToNumber[i].transform.position.y,
                   objectsToNumber[i].transform.position.z
                 );
            }

            newText.transform.position = newPos;
            newText.transform.parent = transform;
            newText.name = i.ToString();
            newText.tag = "Number";
            newTexts.Add(newText);
            var textmesh = newText.GetComponent<TextMesh>();
            textmesh.transform.localRotation = Quaternion.Euler(0, -90, 0);

            if (textAbove == true)
            {
                textmesh.text = i.ToString();
            }

            if (textInFront == true)
            {
                textmesh.text = "Hello World";
            }
        }
    }

    private void Update()
    {
        if (rotateNumbers == true)
        {
            for (int i = 0; i < newTexts.Count; i++)
            {
                newTexts[i].transform.Rotate(Vector3.up, 10 * rotationSpeed * Time.deltaTime);
            }
        }
    }
}

using System.Collections;
using System.Collections.Generic;
using UnityEngine;
using UnityEngine.UI;
using TMPro;

public class AddTextToObject : MonoBehaviour
{
    public UnityEngine.GameObject[] objectsToNumber;
    public UnityEngine.GameObject text;
    public float yPadding;
    public bool rotateNumbers = false;
    public float rotationSpeed = 10f;
    public bool textChild = false;
    public bool textAbove = false;
    public bool textInFront = false;
    public bool textOnFaces = false;

    private List<GameObject> newTexts = new List<GameObject>();
    private MeshRenderer[] renderer;
    private Vector3 newPos;

    private void Start()
    {
        renderer = new MeshRenderer[objectsToNumber.Length];

        for (int i = 0; i < objectsToNumber.Length; i++)
        {
            GameObject newText = Instantiate(text);
            renderer[i] = objectsToNumber[i].GetComponent<MeshRenderer>();

            if (textAbove == true)
            {
                newPos = new Vector3
                (
                 objectsToNumber[i].transform.position.x,
                 ((objectsToNumber[i].transform.position.y + renderer[i].bounds.extents.y) + yPadding),
                   objectsToNumber[i].transform.position.z
                 );
            }

            if (textInFront == true)
            {
                newPos = new Vector3
                (
                 ((objectsToNumber[i].transform.position.x + renderer[i].bounds.extents.x) + yPadding),
                 objectsToNumber[i].transform.position.y,
                   objectsToNumber[i].transform.position.z
                 );
            }

            newText.transform.position = newPos;
            newText.transform.SetParent(transform, false);
            newText.name = i.ToString();
            newText.tag = "Number";
            newTexts.Add(newText);
            var textmesh = newText.GetComponent<TextMeshProUGUI>();
            textmesh.transform.localRotation = Quaternion.Euler(0, -90, 0);

            if (textAbove == true)
            {
                textmesh.text = i.ToString();
            }

            if (textInFront == true)
            {
                textmesh.text = "Hello World";
            }
        }
    }

    private void Update()
    {
        if (rotateNumbers == true)
        {
            for (int i = 0; i < newTexts.Count; i++)
            {
                newTexts[i].transform.Rotate(Vector3.up, 10 * rotationSpeed * Time.deltaTime);
            }
        }
    }
}