无法在ListView SwiftUI中使用按钮进行工作表

import SwiftUI

struct ContentView: View {
    @State private var isShowingSheet = false

    var body: some View {
        NavigationView {
            List {
                ForEach(0..<10) { index in
                    Text("Item \(index)")
                }
            }
            .navigationBarTitle("ListView")
            .navigationBarItems(trailing:
                Button(action: {
                    self.isShowingSheet = true
                }) {
                    Image(systemName: "plus")
                }
            )
            .sheet(isPresented: $isShowingSheet) {
                // 在这里放置你的工作表视图
                Text("Sheet Content")
            }
        }
    }
}

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