如何在SwiftUI中更改视图

struct ContentView: View {
    @State private var text = "Hello, SwiftUI"
    
    var body: some View {
        Text(text)
            .padding()
            .onTapGesture {
                text = "SwiftUI is awesome"
            }
    }
}

struct ParentView: View {
    @State private var text = "Hello, SwiftUI"
    
    var body: some View {
        VStack {
            ChildView(text: $text)
            Text(text)
        }
    }
}

struct ChildView: View {
    @Binding var text: String
    
    var body: some View {
        Button("Change Text") {
            text = "SwiftUI is awesome"
        }
    }
}

class DataStore: ObservableObject {
    @Published var text = "Hello, SwiftUI"
}

struct ContentView: View {
    @ObservedObject var dataStore = DataStore()
    
    var body: some View {
        VStack {
            Text(dataStore.text)
            Button("Change Text") {
                dataStore.text = "SwiftUI is awesome"
            }
        }
    }
}