获取最新汇率

class Program  {      public class ExRate      {          public string bank { get; set; }          public string currency { get; set; }          public string code { get; set; }          public decimal? currencyUnit { get; set; }          public decimal? cenPrice { get; set; }          public decimal? buyPrice1 { get; set; }          public decimal? sellPrice1 { get; set; }          public decimal? buyPrice2 { get; set; }          public decimal? sellPrice2 { get; set; }          public DateTime releasedate { get; set; }          public decimal? Rate { get { return buyPrice1 / (currencyUnit ?? 100); } }      }

     static void Main(string[] args)      {          string url = "http://data.bank.hexun.com/other/cms/foreignexchangejson.ashx";          WebClient webClient = new WebClient();          webClient.Credentials = CredentialCache.DefaultCredentials;//获取或设置用于向Internet资源的请求进行身份验证的网络凭据          Byte[] pageData = webClient.DownloadData(url); //从指定网站下载数据          string pageHtml = Encoding.Default.GetString(pageData);  //如果获取网站页面采用的是GB2312，则使用这句          pageHtml = pageHtml.Replace("ForeignexchangeData(", "").Replace("])", "]");          List<ExRate> dycs = JsonConvert.DeserializeObject<List<ExRate>>(pageHtml);          var q =          from p in dycs          group p by new { p.code, p.currency } into g          select new          {              g.Key,              //这里是取几家银行的平均值 我不了解标准的算法是什么 了解的可以自行修改              AveragePrice = g.Average(p => p.buyPrice1 / (p.currencyUnit ?? 100))          };

         foreach (var item in q)          {              if (!string.IsNullOrEmpty(item.Key.code))                  Console.WriteLine(item.Key.code + "\t" + item.Key.currency + "\t\t" + item.AveragePrice + "\r\n");          }          Console.Read();      }  }

转载于:https://www.cnblogs.com/myrapid/p/11309354.html

相关资源：C#(.Net)获取中国银行（中行）汇率数据