如何将函数传递给Swift中的另一个类

class AnotherClass {
    func performOperation(operation: () -> Void) {
        // 执行传递进来的闭包
        operation()
    }
}

class MyClass {
    func myFunction() {
        let anotherClass = AnotherClass()
        anotherClass.performOperation {
            print("Hello, World!")
        }
    }
}

protocol MyDelegate {
    func performOperation()
}

class AnotherClass {
    var delegate: MyDelegate?
    
    func performOperation() {
        delegate?.performOperation()
    }
}

class MyClass: MyDelegate {
    func myFunction() {
        let anotherClass = AnotherClass()
        anotherClass.delegate = self
        anotherClass.performOperation()
    }
    
    func performOperation() {
        print("Hello, World!")
    }
}

class AnotherClass {
    func performOperation() {
        NotificationCenter.default.post(name: NSNotification.Name("MyNotification"), object: nil)
    }
}

class MyClass {
    init() {
        NotificationCenter.default.addObserver(self, selector: #selector(handleNotification), name: NSNotification.Name("MyNotification"), object: nil)
    }
    
    deinit {
        NotificationCenter.default.removeObserver(self)
    }
    
    @objc func handleNotification() {
        print("Hello, World!")
    }
    
    func myFunction() {
        let anotherClass = AnotherClass()
        anotherClass.performOperation()
    }
}