1 //按钮
 2 private void buttonLeft_Click_1(object sender, RoutedEventArgs e)
 3         {
 4             TextBlock tb233 = new TextBlock();
 5             tb233.Text = "测试 /n ceshi";
 6             tb233.Name = "dddd";
 7             tb233.Margin = new Thickness(10, 170, 10, 0);
 8             tb233.MouseRightButtonDown += MouseRightButtonDown_1;
 9             grid1.Children.Add(tb233);
10         }
11         
12 private void MouseRightButtonDown_1(object sender, MouseButtonEventArgs e)
13         {
14             TextBlock tb = sender as TextBlock;
15             ContextMenu cm = new ContextMenu();
16             cm.Width = (double)220;
17             cm.Height = (double)200;
18             for (int i = 3; i <= 20; i++)
19             {
20                 MenuItem mi = new MenuItem { Header = "字号：" + i };
21                 mi.Name = "m" + i;
22                 cm.Items.Add(mi);
23             }
24             tb.ContextMenu = cm;
25         }