上面的代码将合并的内容List合并成一个项目。所以，当contextMenu出现时，它只是识别Parent。我认为更好的方法是将Parent和Child分离成不同的ForEach，以确定单独的父项和子项。

struct Child: Hashable {
    var name: String = ""

    init(_ name: String) {
        self.name = name
    }
}

struct Parent: Hashable {
    var childs: [Child] = []
    var name: String = ""
}

...
var list: [Parent] = [
    .init(childs: [.init("Child 1"), .init("Child 2")], name: "Parent")
]

var body: some View {
    VStack {
        ForEach(list, id: \.self) { p in
            HStack {
                Text(p.name)
                    .contextMenu {
                        Button("Parent Action") {
                        }
                    }
            }
            .frame(maxWidth: .infinity, alignment: .leading)
            
            ForEach(p.childs, id: \.self) { c in
                HStack {
                    Text(c.name)
                        .contextMenu {
                            Button(c.name) {
                            }
                        }
                        .padding(.leading)
                }
                .frame(maxWidth: .infinity, alignment: .leading)
            }
        }
    }
}

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