Version: 2019.4
public static string GetUniqueTempPathInProject ();

説明

現在の Unity プロジェクトの Temp フォルダー内でユニークとなるファイルパスを取得します

取得できるパスはプロジェクトフォルダーに対しての相対パスとなります。

The returned path is of a form Temp/UnityTempFile-uniqueID, where uniqueID is guaranteed to be unique over space and time.

You can use it to create temporary files/folders and be sure that you are not overriding somebody else's files, plus you don't have to keep track of the unique IDs yourself.

using UnityEngine;
using UnityEditor;

public class GetUniqueTempPath : MonoBehaviour { [MenuItem("Example/Get Unique Temp Path")] static void GetUniqueTempPathInProject() { Debug.Log(FileUtil.GetUniqueTempPathInProject()); } }