C# 폴더유무 확인해서 폴더생성하고 파일 쓰기

Debug.LogWarning("There is no file on local.");

// Create New Folder 

string sDirPath;

            sDirPath = Application.persistentDataPath + "/root/configuration";

            DirectoryInfo di = new DirectoryInfo(sDirPath);

            if (di.Exists == false)

            {

                di.Create();

            }

// Write File 

FileStream fs = new FileStream(Application.persistentDataPath + "/root/configuration/configuration.json", FileMode.CreateNew);

byte[] info = new UTF8Encoding(true).GetBytes(source);

        fs.Write(info, 0, info.Length);