/// <summary>
/// 新增临时素材
/// </summary>
/// <param name="file">文件流</param>
/// <param name="fileName">文件名称</param>
/// <param name="type">媒体文件类型，分别有图片（image）、语音（voice）、视频（video）和缩略图（thumb）</param>
/// <returns></returns>
public static EntMediaResult AddMedia(Stream file, string fileName, EntMediaType type)
{
MultipartFormDataContent content = EntInterface.BuildFromContent(fileName, file);
var url = string.Format(ADD_MEDIA_URL, EntInterface.AccessToken, type.ToString());
return(WebApiHelper.PostHttpContent <EntMediaResult>(url, content));
}
/// <summary>
/// 读取永久素材列表
/// </summary>
/// <param name="type">类型 不能为news</param>
/// <param name="offset">从全部素材的该偏移位置开始返回，0表示从第一个素材 默认0</param>
/// <param name="count">返回素材的数量，取值在1到20之间，默认20</param>
/// <returns></returns>
public static EntMeterialResult GetMaterialList(EntMediaType type, int offset, int count = 20)
{
var url = string.Format(GET_MATERIAL_LIST_URL, EntInterface.AccessToken);
if (type == EntMediaType.news)
{
throw new Exception("news请使用GetMaterialNewsList");
}
return(WebApiHelper.PostAsync <EntMeterialResult>(url, new { type = type.ToString(), offset = offset, count = count }));
}