如何将SwiftUI图像保存到磁盘或取出数据？

import SwiftUI

struct ContentView: View {
    @State private var image: Image?
    
    var body: some View {
        VStack {
            image?
                .resizable()
                .frame(width: 200, height: 200)
            
            Button("Save Image") {
                saveImage()
            }
            
            Button("Load Image") {
                loadImage()
            }
        }
    }
    
    func saveImage() {
        guard let uiImage = UIImage(named: "example-image") else {
            return
        }
        
        if let data = uiImage.pngData() {
            let documentsDirectory = FileManager.default.urls(for: .documentDirectory, in: .userDomainMask).first!
            let fileURL = documentsDirectory.appendingPathComponent("image.png")
            
            do {
                try data.write(to: fileURL)
                print("Image saved to: \(fileURL)")
            } catch {
                print("Failed to save image: \(error)")
            }
        }
    }
    
    func loadImage() {
        let documentsDirectory = FileManager.default.urls(for: .documentDirectory, in: .userDomainMask).first!
        let fileURL = documentsDirectory.appendingPathComponent("image.png")
        
        do {
            let data = try Data(contentsOf: fileURL)
            if let uiImage = UIImage(data: data) {
                image = Image(uiImage: uiImage)
            }
        } catch {
            print("Failed to load image: \(error)")
        }
    }
}

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