C# 我怎样才能在Update中只调用一次方法？

我认为一种解决方案可能是这样的：存储

gameObjectsInfo

的先前状态，并与当前的

gameObjectsInfo

进行比较。如果它们不相等，则更改了

gameObjectsInfo

using UnityEngine;
using System.Collections;
using UnityEditor;

[CustomEditor(typeof(GameObjectInfo))]
public class GameObjectInfoButton : Editor
{
    public override void OnInspectorGUI()
    {
        DrawDefaultInspector();

        GameObjectInfo myScript = (GameObjectInfo)target;
        if (GUILayout.Button("Search"))
        {
            myScript.Search();
        }
    }
}

using UnityEngine;
using System.Collections;
using UnityEditor;

[CustomEditor(typeof(GameObjectInfo))]
public class GameObjectInfoButton : Editor
{
    public override void OnInspectorGUI()
    {
        DrawDefaultInspector();

        GameObjectInfo myScript = (GameObjectInfo)target;
        if (GUILayout.Button("Search"))
        {
            myScript.Search();
        }
    }
}

...

public string previousGameObjectsInfo = "";   // to store the previous state
public string gameObjectsInfo = "";

...

private void Update()
{
    if(gameObjectsInfo != "" && gameObjectsInfo != previousGameObjectsInfo)
    {
        Search();   // or anything else
    }

    previousGameObjectsInfo = gameObjectsInfo;
}