如何在SwiftUI中创建具有可变数量的子视图的视图？

import SwiftUI

struct ContentView: View {
    @State private var items = ["Item 1", "Item 2", "Item 3"]

    var body: some View {
        VStack {
            ForEach(items, id: \.self) { item in
                Text(item)
            }
            
            Button(action: {
                self.addItem()
            }) {
                Text("Add Item")
            }
        }
    }
    
    func addItem() {
        let newItem = "Item \(items.count + 1)"
        items.append(newItem)
    }
}

struct ContentView_Previews: PreviewProvider {
    static var previews: some View {
        ContentView()
    }
}