Microsoft Azure Storage(微软Blob存储)

            var account = CloudStorageAccount.Parse("DefaultEndpointsProtocol=httpxxxxxxxxxxxxxxxxxx=core.chinacloudapi.cn");
            var blobClient = account.CreateCloudBlobClient();
            //这个container的名字必须是已经存在的容器名，否则上传不进去，云上没有资料
            string container = "bobtest";
            string FileName = "Prozkb";           

            var blobContainer = blobClient.GetContainerReference(container);
            //check folder
            string yy = DateTimeOffset.Now.Year.ToString();
            string mm = DateTimeOffset.Now.Month.ToString();
            string dd = DateTimeOffset.Now.Day.ToString();
            string filename = $"{yy}/{mm}/{dd}/{FileName}.pdf";//这个文件名字也是可以换成任何格式的。

            var cloudBlockBlob = blobContainer.GetBlockBlobReference(filename);
            byte[] fileByte = Encoding.UTF8.GetBytes("123456789");
            Task.Run(() => { return cloudBlockBlob.UploadFromStreamAsync(byte2stream(fileByte)); });
            //这个是返回的url，浏览器中好像不能直接读取
            string s= cloudBlockBlob.Uri.ToString();