终于找到了 MenuButton，它对 MacOS 中的 SwiftUI 起到了作用.

Finally found MenuButton which does the trick for SwiftUI in MacOS.

MenuButton(label: Title(), content: {
    Button(action: {
        print("Clicked an item")
    }) {
        Text("Menu Item Text")
    }
})
.menuButtonStyle(BorderlessButtonMenuButtonStyle())

... 为我的可点击按钮使用自定义视图 Title().

... with using a custom View Title() for my clickable button.

struct Title: View {
    var body: some View {
        HStack
        {
            Text("Title")
        }
    }
}