我開始學習C#並且無法弄清楚如何從接口方法中調用基類方法。在這種特殊情況下,我需要以某種方式從onRecieve
方法中調用sendData
。C#調用基於接口方法的方法
WebSocketBase.cs
using WebSocketSharp;
using System;
using System.Collections.Generic;
using System.Threading;
class WebSocketBase
{
private WebSocket webSocketClient = null;
private WebSocketService webService = null;
private string url = null;
public WebSocketBase(string url, WebSocketService webService)
{
this.webService = webService;
this.url = url;
}
public void start()
{
webSocketClient = new WebSocket(url);
webSocketClient.OnError += new EventHandler<WebSocketSharp.ErrorEventArgs>(webSocketClient_Error);
webSocketClient.OnOpen += new EventHandler(webSocketClient_Opened);
webSocketClient.OnClose += new EventHandler<WebSocketSharp.CloseEventArgs>(webSocketClient_Closed);
webSocketClient.OnMessage += new EventHandler<MessageEventArgs>(webSocketClient_MessageReceived);
webSocketClient.ConnectAsync();
}
private void webSocketClient_MessageReceived(object sender, MessageEventArgs e)
{
webService.onReceive(e.Data);
}
public void send(string channel)
{
webSocketClient.Send(channel);
}
public void sendData(string data)
{
send("data");
}
}
interface WebSocketService
{
void onReceive(String msg);
}
Logic.cs
class Logic : WebSocketService
{
public void onReceive(string msg)
{
Console.WriteLine("Received message")
}
}
此代碼中沒有'WebSocketBase'的實例。你需要有一個給定對象的實例來調用該對象的方法。 – David
在你的例子中,'Logic'類只實現了接口,而不是'WebSocketBase'。如果你不是從一個基類繼承,你怎麼能調用一個基類? – Louis
你介意提供一個完整的例子嗎?這似乎錯過了代碼的一部分(例如,你使用的「webService」對象從哪裏來的?) –