SwiftUI -如何调整PickerView的大小？

import SwiftUI

struct ContentView: View {
    @State private var selectedOption = 0
    let options = ["Option 1", "Option 2", "Option 3"]

    var body: some View {
        VStack {
            Picker(selection: $selectedOption, label: Text("Options")) {
                ForEach(0..<options.count) { index in
                    Text(self.options[index])
                }
            }
            .frame(width: 200, height: 50) // 调整PickerView的大小
            .border(Color.gray) // 可选：添加边框以突出显示PickerView的边界
        }
    }
}

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