Directory.GetFiles works incorrectly on mac

Unity Engine
1

using UnityEngine;
using UnityEditor;
using System.Collections;
using System.IO;
public class test : MonoBehaviour {

// Use this for initialization
void Start () {
SearchObject(Application.dataPath+“/Art/Character”, “0013_nvfashi.fbx”);
}

void SearchObject(string folder,string name)
{

string[ ] files = Directory.GetFiles(folder, name, SearchOption.AllDirectories);
if(files.Length==0)
Debug.LogError(“无法找到对应美术资源:”+name+ " in "+folder);
}

// Update is called once per frame
void Update () {

}
}
Directory.GetFiles works incorrectly on mac

2

What is wrong? You cannot find data?
Normally, I use Application. persistentDataPath for Mac or iOS