如何使用swift ui从一个文本切换到另一个文本？

import SwiftUI

struct ContentView: View {
    @State private var currentText = "Hello"
    
    var body: some View {
        VStack {
            Text(currentText)
                .font(.largeTitle)
            
            Button(action: {
                if self.currentText == "Hello" {
                    self.currentText = "World"
                } else {
                    self.currentText = "Hello"
                }
            }) {
                Text("切换文本")
                    .font(.title)
                    .padding()
                    .background(Color.blue)
                    .foregroundColor(.white)
                    .cornerRadius(10)
            }
        }
    }
}

struct ContentView_Previews: PreviewProvider {
    static var previews: some View {
        ContentView()
    }
}