如何向NSManagedObject发送电子邮件

import MessageUI

if MFMailComposeViewController.canSendMail() {
    let mailComposer = MFMailComposeViewController()
    mailComposer.mailComposeDelegate = self
    mailComposer.setToRecipients(["recipient@example.com"])
    mailComposer.setSubject("邮件主题")
    mailComposer.setMessageBody("邮件内容", isHTML: false)
    
    // 在这里获取NSManagedObject的相关数据，并作为附件添加到邮件中
    // let attachmentData = ...
    // mailComposer.addAttachmentData(attachmentData, mimeType: "application/octet-stream", fileName: "attachment")
    
    present(mailComposer, animated: true, completion: nil)
} else {
    // 设备不支持发送邮件
    // 处理错误或给出提示
}

extension YourViewController: MFMailComposeViewControllerDelegate {
    func mailComposeController(_ controller: MFMailComposeViewController, didFinishWith result: MFMailComposeResult, error: Error?) {
        // 处理邮件发送结果
        // 可以根据result的值来执行相应的操作，比如提示用户发送成功或失败
        controller.dismiss(animated: true, completion: nil)
    }
}