unity 文件

1.删除某个文件（MP4后缀为例）

 private void Start()
 {

 string folderPath = Application.dataPath + "/YourFolderPath";

        if (Directory.Exists(folderPath))
        {
            string[] mp4Files = Directory.GetFiles(folderPath, "*.mp4", SearchOption.AllDirectories);
            string[] tsFiles = Directory.GetFiles(folderPath, "*.ts", SearchOption.AllDirectories);

            foreach (string mp4File in mp4Files)
            {
                Debug.Log("MP4文件地址：" + mp4File);
                //删除
                File.Delete(mp4File );
            }

            foreach (string tsFile in tsFiles)
            {
                Debug.Log("TS文件地址：" + tsFile);
                //删除
                 File.Delete(tsFile);
            }
        }
        else
        {
            Debug.Log("找不到指定的文件夹！");
        }
}

2.获取无扩展名的文件名

string url=Application.streamingAssetsPath + "/202307111938.mp4";
  string guid = System.IO.Path.GetFileNameWithoutExtension(url);
  //输出202307111938