Swift:
一時ファイルの作成

import Foundation

func createTemporaryFile(prefix: String) -> URL? {
    let temporaryDirectoryURL = URL(fileURLWithPath: NSTemporaryDirectory(), isDirectory: true)
    let fileName = "\(prefix)_\(UUID().uuidString).tmp"
    let temporaryFileURL = temporaryDirectoryURL.appendingPathComponent(fileName)
    
    do {
        try "Temporary data".write(to: temporaryFileURL, atomically: true, encoding: .utf8)
        print("Temporary file created: \(temporaryFileURL.path)")
        return temporaryFileURL
    } catch {
        print("Failed to create temporary file: \(error)")
        return nil
    }
}

// Example usage
if let tempFileURL = createTemporaryFile(prefix: "example") {
    // Use the temporary file, then delete it
    try? FileManager.default.removeItem(at: tempFileURL)
}