Simple REST and HTTP API Client for .NET
GiHub:
https://github.com/restsharp/RestSharp
天气预报全能版
http://www.apix.cn/services/show/89
var client = new RestClient("http://a.apix.cn/heweather/x3/pro/weather?cityid=your_value"); var request = new RestRequest(Method.GET); request.AddHeader("apix-key", "您的apix-key"); request.AddHeader("content-type", "application/json"); request.AddHeader("accept", "application/json"); IRestResponse response = client.Execute(request);
原文：http://www.cnblogs.com/wangjunwei/p/4863151.html