python实现电子邮件附件指定时间段，批量下载以及C#小程序集成实现（二）

        /// <summary>
        /// 对话框形式选择文件夹路径
        /// </summary>
        /// <returns>返回所选择的文件夹路径</returns>
        public string ChooseFolderPath()
        {
            FolderBrowserDialog fbd = new FolderBrowserDialog();
            fbd.RootFolder = System.Environment.SpecialFolder.Desktop;
            fbd.ShowNewFolderButton = true;
            fbd.Description = "请选择目录";
            if (fbd.ShowDialog() == DialogResult.OK)
            {
                return fbd.SelectedPath.ToString();
            }
            else
            {
                return "";
            }
        }
        //点击事件调用
        private void button3_Click(object sender, EventArgs e)
        {
            string path;
            if ((path = ChooseFolderPath()) == "")
            {
                //do nothing
            }
            else
            {
                textBox3.Text = path;
            }
        }

private void ClearAllTxt()
{
    foreach (Control ctr in splitContainer1.Panel1.Controls)
    {
        if (ctr is TextBox)
        {
            TextBox tb = ctr as TextBox;
            tb.Text = string.Empty;
            //ctr.Text = "";
        }
        if (ctr is ComboBox)
        {
            ComboBox cob = ctr as ComboBox;
            cob.SelectedIndex = -1;
        }
     }
}

            if (textBox1.Text == "")
            {
                MessageBox.Show("邮箱账号不能为空，请输入需要批量下载附件的邮箱账号！", "错误信息", MessageBoxButtons.OK, MessageBoxIcon.Information);
                return;
            }
            string UserName = "";
            string emailtype = "";
            string typeEmail = textBox1.Text;//C#中字符串处理后需要再次赋值的，否则不改变
            int index = typeEmail.IndexOf("@");//检索用户名@后面的字符，获取输入的邮箱类型
            int len = typeEmail.Length;
            if(index == -1)//用户名未带邮箱类型
            {
                if (comboBox1.Text == "")
                {
                    MessageBox.Show("未输入邮箱类型，请手动输入或选择！", "错误信息", MessageBoxButtons.OK, MessageBoxIcon.Information);
                    return;
                }
                else
                {
                    UserName = textBox1.Text + "@" + comboBox1.Text;
                    emailtype = comboBox1.Text;
                }
            }
            else
            {
                typeEmail = typeEmail.Substring(index+1);//取后面的邮箱类型
                //typeEmail = typeEmail.Remove(0,index+1);//取后面的邮箱类型                            
                if (comboBox1.Text == "")
                {//以手动输入为准
                    UserName = textBox1.Text;
                    emailtype = typeEmail;
                }
                else
                {
                    if (typeEmail.Equals(comboBox1.Text))
                    {
                        emailtype = comboBox1.Text;
                        //正确一致
                    }
                    else
                    {
                        MessageBox.Show("选择和手动输入的邮箱类型不一致，请检查！", "错误信息", MessageBoxButtons.OK, MessageBoxIcon.Information);
                        return;
                    }
                }        
            }

string str = Environment.CurrentDirectory;//当前路径的字符串
string exePath = str + @"\GetEmailfile.exe";//这样写的弊端是需将执行的exe文件存放至界面开发的同目录下,命名也是固定的
//调用exe文件
string[] the_args = { UserName, PassWord, FilePath, StarDay, EndDay, emailtype };   // 被调exe接受的参数
StartProcess(exePath, the_args);