如何在iPhone应用程序中保存多个文件？

// 获取应用程序的沙盒目录
let documentsDirectory = FileManager.default.urls(for: .documentDirectory, in: .userDomainMask).first!

// 创建文件夹路径
let folderPath = documentsDirectory.appendingPathComponent("MyFiles")

do {
    // 创建文件夹
    try FileManager.default.createDirectory(atPath: folderPath.path, withIntermediateDirectories: true, attributes: nil)
    
    // 保存文件
    let file1Path = folderPath.appendingPathComponent("file1.txt")
    let file1Content = "This is file 1 content"
    FileManager.default.createFile(atPath: file1Path.path, contents: file1Content.data(using: .utf8), attributes: nil)
    
    let file2Path = folderPath.appendingPathComponent("file2.txt")
    let file2Content = "This is file 2 content"
    FileManager.default.createFile(atPath: file2Path.path, contents: file2Content.data(using: .utf8), attributes: nil)
    
    // 检查文件是否保存成功
    let file1Exists = FileManager.default.fileExists(atPath: file1Path.path)
    let file2Exists = FileManager.default.fileExists(atPath: file2Path.path)
    
    if file1Exists && file2Exists {
        print("文件保存成功！")
    } else {
        print("文件保存失败！")
    }
} catch {
    print("创建文件夹失败：\(error)")
}