public async Task NoticeAsync(Webhook webhook) { var tasks = _serverChanOptions.Value.ScKeys.Select(key => { var desp = @$ " #### 消息 {webhook.Message} #### 时间 `{webhook.CreatedAt:yyyy-MM-dd HH:mm:ss fff}`"; var hostApi = string.Format(_serverChanOptions.Value.Api, key); var url = $"{hostApi}?text={webhook.Title()}&desp={WebUtility.UrlEncode(desp)}"; return(_baseRestfulApi.GetStringAsync(url)); }).ToList();