C# 获取天气预报（未来15天）

参考：https://blog.csdn.net/zsj777/article/details/102456224

查看城市ID：http://www.wendangku.net/doc/461567915a8102d277a22f10-9.html

获取指定城市ID的未来15天的天气预报：http://t.weather.sojson.com/api/weather/city/101180205

示例代码：

using System;
using System.Collections.Generic;
using System.Collections;
using System.Linq;
using System.Text;
using System.Net;
using System.Threading.Tasks;
using System.IO;
using System.Diagnostics;
using System.Web;
using Newtonsoft.Json;
using Newtonsoft.Json.Linq;city 城市ID：101091006public static ArrayList getWeather2(String city){ArrayList al = new ArrayList();//1.根据城市查询天气//城市ID：101091006// city = 101091006;string url1 = "http://t.weather.sojson.com/api/weather/city/"+ city;var parameters1 = new Dictionary();//parameters1.Add("cityname", city); //要查询的城市，如：温州、上海、北京//parameters1.Add("dtype", ""); //返回数据的格式,xml或json，默认jsonstring result1 = sendPost(url1, parameters1, "get");//JsonObject newObj1 = new JsonObject(result1);//String errorCode1 = newObj1["error_code"].Value;JObject jo = (JObject)JsonConvert.DeserializeObject(result1);//JToken record = jo["error_code"];String errorCode1 = jo["status"].ToString();String info = "";if (errorCode1 == "200"){//"20200710"string date = jo["date"].ToString();string year = date.Substring(0, 4);string month = date.Substring(4, 2);//Debug.WriteLine("成功");//Debug.WriteLine(newObj1);JToken record = jo["data"];JToken record2 = record["forecast"];JToken[] jArray = record2.ToArray();for(int i=0;i< jArray.Length; i++){ArrayList temp_arr = new ArrayList();JToken record3 = jArray[i];                    string time = year + "-" + month + "-" + record3["date"];temp_arr.Add(time);string weather = record3["type"]+" "+ record3["low"].ToString().Trim().Replace("低温", "")+ "～"+ record3["high"].ToString().Trim().Replace("高温", "");temp_arr.Add(weather);al.Add(temp_arr);}}else{//Debug.WriteLine("失败");// Debug.WriteLine(newObj1["error_code"].Value + ":" + newObj1["reason"].Value);}return al;}

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