如何在SwiftUI子视图中执行函数？

import SwiftUI

struct ContentView: View {
    var body: some View {
        VStack {
            Text("Hello, SwiftUI!")
                .onAppear(perform: myFunction)
        }
    }
    
    func myFunction() {
        // 在这里执行你的函数逻辑
        print("执行了myFunction")
    }
}

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