五、保存和加载平面数据与锚点数据

1.新建一个脚本命名为 ARWorldMapController 代码如下：

using System.Collections;
using System.Collections.Generic;
using System.IO;
using Unity.Collections;
using UnityEngine;
using UnityEngine.UI;
using UnityEngine.XR.ARFoundation;
using UnityEngine.XR.ARSubsystems;
#if UNITY_IOS
using UnityEngine.XR.ARKit;
#endif

public class ARWorldMapController : MonoBehaviour
{
    private ARSession m_ARSession;
    private List<string> m_LogMessages = new List<string>();

    [SerializeField]
    private Text m_LogText;
    [SerializeField]
    private Text m_ErrorText;
    [SerializeField]
    private Text m_MappingStatusText;
    [SerializeField]
    private Button m_SaveButton;
    [SerializeField]
    private Button m_LoadButton;
    [SerializeField]
    private Button m_ResetButton;

    private void Awake()
    {
        m_ARSession = FindObjectOfType<ARSession>();
        if (m_ARSession == null)