swiftui命令

Button(
                action: {
                    isPerformingTask = true
                    api = apilist.filter(){$0 != api}.randomElement()!
                    Task {
                        await loadData()
                        isPerformingTask = false
                    }
                },
                label: {
                        Text("换一批").opacity(isPerformingTask ? 0 : 1)
                }
            )
            .disabled(isPerformingTask)

 .contextMenu {
                            Button {
                                // Add this item to a list of favorites.
                            } label: {
                                Label("Add to Favorites", systemImage: "heart")
                            }
                            Button {
                                // Open Maps and center it on this item.
                            } label: {
                                Label("Show in Maps", systemImage: "mappin")
                            }
                        }

2022-07-22

           xianshi(newsx: 新闻数据())
                .environment(\.managedObjectContext,
                                          persistenceController.container.viewContext)

2022-07-22

                   for lie in labelnews.绿色列表 {
                        if let range = text.range(of: lie) {
                            text[range].backgroundColor = .cyan
                            text[range].foregroundColor = .red
                            text[range].font = .footnote
                            //                                text[range].font = UIFont.boldSystemFont(ofSize: 15)
                            text.characters.replaceSubrange(range, with: lie+"（企业的根本）")
                        }
                    }