C# 邮件发送 （可带附件）

实现邮件发送，并且带附件

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.Text.Regularexpressions;

namespace EmailClient
{
    public partial class Form1 : Form
    {
        public Form1（）
        {
            InitializeComponent（）;
        }
        MyEmail email;

        private void btnSend_Click（object sender EventArgs e）
        {
            if （（txtTo.Text != ““） && （txtSubject.Text != ““） & （txtContent.Text != ““））
            {
                email = new MyEmail（txtSubject.Text txtTo.Text txtContent.Text）;
                email.AddAttchment（txtAttchment.Text）;
                if （email.SendEmail（））
                {
        

 属性            大小     日期    时间   名称
----------- ---------  ---------- -----  ----
     目录           0  2016-01-26 17:32  EmailClient\
     目录           0  2016-01-26 17:32  EmailClient\EmailClient\
     文件        3719  2016-01-07 16:38  EmailClient\EmailClient\EmailClient.csproj
     文件        6720  2016-01-07 17:48  EmailClient\EmailClient\Form1.Designer.cs
     文件        1889  2016-01-07 17:48  EmailClient\EmailClient\Form1.cs
     文件        5817  2016-01-07 17:48  EmailClient\EmailClient\Form1.resx
     文件        3046  2016-01-28 18:07  EmailClient\EmailClient\MyEmail.cs
     文件         492  2016-01-07 15:45  EmailClient\EmailClient\Program.cs
     目录           0  2016-01-26 17:32  EmailClient\EmailClient\Properties\
     文件        1354  2016-01-07 15:45  EmailClient\EmailClient\Properties\AssemblyInfo.cs
     文件        2872  2016-01-07 15:45  EmailClient\EmailClient\Properties\Resources.Designer.cs
     文件        5612  2016-01-07 15:44  EmailClient\EmailClient\Properties\Resources.resx
     文件        1096  2016-01-07 15:45  EmailClient\EmailClient\Properties\Settings.Designer.cs
     文件         249  2016-01-07 15:44  EmailClient\EmailClient\Properties\Settings.settings
     目录           0  2016-01-26 17:32  EmailClient\EmailClient\bin\
     目录           0  2016-01-26 17:32  EmailClient\EmailClient\bin\Debug\
     文件       12288  2016-02-01 15:12  EmailClient\EmailClient\bin\Debug\EmailClient.exe
     文件       34304  2016-02-01 15:12  EmailClient\EmailClient\bin\Debug\EmailClient.pdb
     文件       11600  2016-02-01 15:14  EmailClient\EmailClient\bin\Debug\EmailClient.vshost.exe
     文件         490  2009-08-31 00:40  EmailClient\EmailClient\bin\Debug\EmailClient.vshost.exe.manifest
     目录           0  2016-01-26 17:32  EmailClient\EmailClient\obj\
     目录           0  2016-01-26 17:32  EmailClient\EmailClient\obj\x86\
     目录           0  2016-02-01 15:12  EmailClient\EmailClient\obj\x86\Debug\
     文件        2152  2016-01-07 15:45  EmailClient\EmailClient\obj\x86\Debug\DesignTimeResolveAssemblyReferences.cache
     文件        6283  2016-02-01 15:12  EmailClient\EmailClient\obj\x86\Debug\DesignTimeResolveAssemblyReferencesInput.cache
     文件         180  2016-01-28 18:07  EmailClient\EmailClient\obj\x86\Debug\EmailClient.Form1.resources
     文件         180  2016-01-28 18:07  EmailClient\EmailClient\obj\x86\Debug\EmailClient.Properties.Resources.resources
     文件        1703  2016-02-01 15:14  EmailClient\EmailClient\obj\x86\Debug\EmailClient.csproj.FileListAbsolute.txt
     文件       12288  2016-02-01 15:12  EmailClient\EmailClient\obj\x86\Debug\EmailClient.exe
     文件       34304  2016-02-01 15:12  EmailClient\EmailClient\obj\x86\Debug\EmailClient.pdb
     文件         538  2016-01-28 18:07  EmailClient\EmailClient\obj\x86\Debug\GenerateResource.read.1.tlog
............此处省略5个文件信息