string url ="http://api.map.baidu.com/telematics/v3/weather?location=昌图&output=json&ak=************";WebClient wc =newWebClient(); wc.Encoding=Encoding.UTF8;var txt = wc.DownloadString(url);var xx =JsonConvert.DeserializeObject<BaiduWeather>(txt);publicclassIndex{publicstringTitle{ get;set;}publicstringZs{ get;set;}publicstringTipt{ get;set;}publicstringDes{ get;set;}}publicclassWeather_data{publicstringDate{ get;set;}publicstringDayPictureUrl{ get;set;}publicstringNightPictureUrl{ get;set;}publicstringWeather{ get;set;}publicstringWind{ get;set;}publicstringTemperature{ get;set;}}publicclassResults{publicstringCurrentCity{ get;set;}publicstringPm25{ get;set;}publicList<Index>Index{ get;set;}publicList<Weather_data>Weather_data{ get;set;}}publicclassBaiduWeather{publicintError{ get;set;}publicstringStatus{ get;set;}publicDateTimeDate{ get;set;}publicList<Results>Results{ get;set;}}原文：http://www.cnblogs.com/iaisoft/p/6939659.html