如何创建一个文本，其中它将显示当前日期，但一旦选择日期，它将显示选定的日期？使用SwiftUI。谢谢

import SwiftUI
import Foundation

struct ContentView: View {
    @State private var selectedDate = Date()
    
    var body: some View {
        VStack {
            Text("当前日期：\(getCurrentDate())")
            
            DatePicker("选择日期", selection: $selectedDate, displayedComponents: .date)
                .datePickerStyle(GraphicalDatePickerStyle())
            
            Text("选定日期：\(getSelectedDate())")
        }
    }
    
    func getCurrentDate() -> String {
        let formatter = DateFormatter()
        formatter.dateFormat = "yyyy-MM-dd"
        return formatter.string(from: Date())
    }
    
    func getSelectedDate() -> String {
        let formatter = DateFormatter()
        formatter.dateFormat = "yyyy-MM-dd"
        return formatter.string(from: selectedDate)
    }
}

func scene(_ scene: UIScene, willConnectTo session: UISceneSession, options connectionOptions: UIScene.ConnectionOptions) {
    if let windowScene = scene as? UIWindowScene {
        let window = UIWindow(windowScene: windowScene)
        window.rootViewController = UIHostingController(rootView: ContentView())
        self.window = window
        window.makeKeyAndVisible()
    }
}