SwiftUI—如何删除List列表里的记录

struct ContentView : View {
        @State var languages = ["Objective-C", "Swift", "Flutter"]
        var body: some View {
            NavigationView {
                List {
                    ForEach(languages,id: \.self) { language in
                        Text(language)
                    }
                    .onDelete(perform: delete) //添加对onDelete方法的响应，当列表里的记录被删除时，执行delete方法，该方法将在下面的代码中实现
                }
                .navigationBarItems(trailing: EditButton())
            }
        }
        func delete(at offsets: IndexSet) {
            if let first = offsets.first { //获得索引集合里的第一个元素，然后从数组里删除对应索引的元素
                languages.remove(at: first)
            }
        }
    }