/// <summary> /// 上传文件,根据文件大小以及设置的阈值(用户初始化UploadManager时可指定该值)自动选择: /// 若文件大小超过设定阈值,使用ResumableUploader,否则使用FormUploader /// </summary> /// <param name="localFile">本地待上传的文件名</param> /// <param name="key">要保存的文件名称</param> /// <param name="token">上传凭证</param> /// <param name="extra">上传可选设置</param> /// <returns>上传文件后的返回结果</returns> public Task <HttpResult> UploadFile(string localFile, string key, string token, PutExtra extra) { var fi = new System.IO.FileInfo(localFile); if (fi.Length > _config.PutThreshold) { return(_resumableUploader.UploadFile(localFile, key, token, extra)); } return(_formUploader.UploadFile(localFile, key, token, extra)); }