使列表行在SwiftUI中可选

import SwiftUI

struct ContentView: View {
    var body: some View {
        NavigationView {
            List {
                NavigationLink(destination: DetailView()) {
                    Text("行1")
                }
                NavigationLink(destination: DetailView()) {
                    Text("行2")
                }
                NavigationLink(destination: DetailView()) {
                    Text("行3")
                }
            }
            .navigationBarTitle("列表")
        }
    }
}

struct DetailView: View {
    var body: some View {
        Text("详情视图")
    }
}

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