如何使用隐式堆栈？

// 保存一些数据的示例结构
struct User: Identifiable {
    let id = UUID()
    let username = "Anonymous"
}

// 用于在列表中创建并显示该数据的视图
struct ContentView: View {
    let users = [User(), User(), User()]

    var body: some View {
        List(users) { user in
            Image("paul-hudson")
                .resizable()
                .frame(width: 40, height: 40)
            Text(user.username)
        }
    }
}