4.22添加 HttpContent 内容

HttpRequestBuilder.Post("https://furion.net")    .SetMultipartContent(multipart =>    {        multipart.Add(new StringContent("test"));        multipart.Add(new StringContent("test"), "name");   // 设置表单名        multipart.Add(new FormUrlEncodedContent([            new KeyValuePair<string, string>("id", "1"), new KeyValuePair<string, string>("name", "furion")        ]));        multipart.Add(JsonContent.Create(new { id = 1, name = "Furion" });        multipart.Add(new StreamContent(stream));        multipart.Add(new ByteArrayContent(bytes), "bytes");        multipart.Add(new ReadOnlyMemoryContent(new ReadOnlyMemory<byte>(bytes));        multipart.Add(new MultipartFormDataContent());    });