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C＃
Console.WriteLine("Attachment name is " + msg.Attachments[0].Name);
VB.NET
Console.WriteLine("Attachment name is " + msg.Attachments(0).Name)

C＃
Pop3 pop = new Pop3();
// Download entire message
MailMessage msg = pop.DownloadEntireMessage(1);
if (msg.HasAttachments)
{
        // The message has at least one attachment
}

VB.NET
Dim pop As New Pop3()
' Download entire message
Dim msg As MailMessage =  pop.DownloadEntireMessage(1) 
if (msg.HasAttachments) Then
        ' The message has at least one attachment
End If

static void SimpleOCRCalculator(string filePath)
      {
         RasterCodecs codecs = new RasterCodecs();

         RasterImage image = codecs.Load(filePath);

         string[] calculations;
         using (IOcrEngine engine = OcrEngineManager.CreateEngine(OcrEngineType.Advantage, false))
         {
            engine.Startup(null, null, null, null);
            IOcrPage page = engine.CreatePage(image, OcrImageSharingMode.None);

            page.AutoZone(null);
            page.Recognize(null);

            calculations = new string[page.Zones.Count];

            for (int i = 0; i < page.Zones.Count; i++)
            {
               calculations[i] = page.GetText(i);
            }

            engine.Shutdown();
         }

         Dictionary<string, Action<double, double>> operands = new Dictionary<string, Action<double, double>>();
         operands.Add("+", new Action<double, double>(delegate(double a, double b) { double ans = a + b; Console.WriteLine("{0} + {1} = {2}", a, b, ans); }));
         operands.Add("-", new Action<double, double>(delegate(double a, double b) { double ans = a - b; Console.WriteLine("{0} - {1} = {2}", a, b, ans); }));
         operands.Add("x", new Action<double, double>(delegate(double a, double b) { double ans = a * b; Console.WriteLine("{0} * {1} = {2}", a, b, ans); }));
         operands.Add("/", new Action<double, double>(delegate(double a, double b) { double ans = a / b; Console.WriteLine("{0} / {1} = {2}", a, b, ans); }));

         for (int i = 0; i < calculations.Length; i++)
         {
            string equation = Regex.Replace(calculations[i], @"\n|\r| ", "");
            string[] ops = new string[] { "+", "-", "x", "/" };

            for (int j = 0; j < ops.Length; j++)
            {
               int index = equation.IndexOf(ops[j]);

               if (index > 0 && index < equation.Length)
               {
                  string op1 = equation.Substring(0, index);
                  string op2 = equation.Substring(index + 1);

                  double arg1 = double.Parse(op1);
                  double arg2 = double.Parse(op2);

                  operands[ops[j]](arg1, arg2);

                  break;
               }
            }
         }

         codecs.Dispose();
         image.Dispose();
      }

8、怎样添加超链接？

1. 使用“绘制对象”添加您希望创建超链接的区域（如手绘图形、矩形或椭圆）
2. 双击您定义的对象以将它指定给URL
3. 您可以将互联网地址、电子邮件地址或任何您需要的超链接插入到“URL”字段中

9、怎样调整工程大小？

10、怎样将声音插入幻灯？

• 当您在进行大纲视图浏览时，您可以点击特定幻灯的喇叭图标
• 在单个幻灯模式中，您能在工具条中找到喇叭图标

11、怎样隐藏或更改鼠标指针？

您可以使用位于工具条中或在“幻灯片|隐藏鼠标指针”菜单中的图标隐藏鼠标指针。可通过双击幻灯中或在“幻灯片|选择鼠标指针

12、在更改了鼠标指针的位置后，鼠标指针的表现奇怪。

• “蓝圈”表示鼠标指针的起始点，“红圈”表示鼠标指针的结束点
• TurboDemo将自动统计这些点之间的路径
• 当您使用TurboDemo制作屏幕截图时，软件将记录当前鼠标指针的位置（起始点）
• 在抓取下一张屏幕截图时，TurboDemo将记录鼠标指针现在的位置以及新坐标（结束点）
• 鼠标指针在一张幻灯中的结束点通常是下一张幻灯的起始点。所以照例所说，当您在一张幻灯中移动了起始点（蓝圈），您会发现在上一张的结束
• 点（红圈）位置也改变了

13、什么是“鼠标悬浮”？

14、当播放演示示例时没有导航。