未调用StreamDelegate的Swift 4 NSObject类

import Foundation

class MyStreamDelegate: NSObject, StreamDelegate {
    func stream(_ aStream: Stream, handle eventCode: Stream.Event) {
        // 处理流相关的事件
    }
    
    func stream(_ aStream: Stream, handleError error: Error) {
        // 处理错误
    }
}

// 创建流对象
let inputStream = InputStream(url: URL(string: "https://example.com")!)!
let outputStream = OutputStream(url: URL(string: "https://example.com")!)!

// 设置代理
let delegate = MyStreamDelegate()
inputStream.delegate = delegate
outputStream.delegate = delegate

// 打开流
inputStream.open()
outputStream.open()

// 读取和写入操作...

// 关闭流
inputStream.close()
outputStream.close()