eg:MT4就運用DDE讓自己成為服務端，程序可利用DDE獲取MT4的外匯報價數據實現實時更新。

?? 先下載MT4運行，設置工具-選項-勾選啟用為DDE服務器

using?NDde.Client;??

public static DdeClient Create(string Symbol,string data, Action<DdeAdviseEventArgs> handler) ??????? { ??????????? DdeClient client = null; ??????????? try ??????????? { ??????????????? //申明并實例化一個DdeClient對象? ? ??????????????? client = new DdeClient("MT4", data); ??????????????? client.Advise += (o, a) => { handler(a); }; ??????????????? //連接到DDE服務器? ? ??????????????? client.Connect(); ??????????????? //循環獲取數據? ? ??????????????? client.StartAdvise(Symbol, 1, true, 10000); ??????????? } ??????????? catch (Exception ex) ??????????? { ??????????????? return null; ??????????? } ??????????? return client; ??????? }

//調用

?????? DdeClient high_client = Create("EURUSD", "Quote",
??????????????? d =>
??????????????? {
??????????????????? Console.WriteLine(d.Text);
??????????????? }
??????????? );
??????????? Console.ReadKey();

總結

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