Visual Basic中,对于文本比较好的处理方式.

VERSION 5.00
Begin VB.Form Form1 
   Caption         =   "动态文字"
   ClientHeight    =   2910
   ClientLeft      =   60
   ClientTop       =   345
   ClientWidth     =   7800
   ForeColor       =   &H00E0E0E0&
   LinkTopic       =   "Form1"
   ScaleHeight     =   2910
   ScaleWidth      =   7800
   StartUpPosition =   3  '窗口缺省
   Begin VB.TextBox Text3 
      BackColor       =   &H00FFFFFF&
      BeginProperty Font 
         Name            =   "宋体"
         Size            =   15.75
         Charset         =   134
         Weight          =   400
         Underline       =   0   'False
         Italic          =   0   'False
         Strikethrough   =   0   'False
      EndProperty
      ForeColor       =   &H0000C000&
      Height          =   420
      Left            =   1575
      TabIndex        =   2
      Top             =   2175
      Width           =   6060
   End
   Begin VB.TextBox Text2 
      BackColor       =   &H00FFFFFF&
      BeginProperty Font 
         Name            =   "宋体"
         Size            =   15.75
         Charset         =   134
         Weight          =   400
         Underline       =   0   'False
         Italic          =   0   'False
         Strikethrough   =   0   'False
      EndProperty
      ForeColor       =   &H00C00000&
      Height          =   405
      Left            =   1575
      TabIndex        =   1
      Top             =   1365
      Width           =   6135
   End
   Begin VB.Timer Timer1 
      Interval        =   250
      Left            =   6450
      Top             =   75
   End
   Begin VB.TextBox Text1 
      BackColor       =   &H00FFFFFF&
      BeginProperty Font 
         Name            =   "宋体"
         Size            =   15.75
         Charset         =   134
         Weight          =   400
         Underline       =   0   'False
         Italic          =   0   'False
         Strikethrough   =   0   'False
      EndProperty
      ForeColor       =   &H000000FF&
      Height          =   420
      Left            =   1575
      TabIndex        =   0
      Top             =   525
      Width           =   6135
   End
   Begin VB.Label Label3 
      Caption         =   "第三个文本框"
      BeginProperty Font 
         Name            =   "宋体"
         Size            =   10.5
         Charset         =   134
         Weight          =   400
         Underline       =   0   'False
         Italic          =   0   'False
         Strikethrough   =   0   'False
      EndProperty
      Height          =   240
      Left            =   225
      TabIndex        =   5
      Top             =   2250
      Width           =   1365
   End
   Begin VB.Label Label2 
      Caption         =   "第二个文本框"
      BeginProperty Font 
         Name            =   "宋体"
         Size            =   10.5
         Charset         =   134
         Weight          =   400
         Underline       =   0   'False
         Italic          =   0   'False
         Strikethrough   =   0   'False
      EndProperty
      Height          =   315
      Left            =   225
      TabIndex        =   4
      Top             =   1425
      Width           =   1290
   End
   Begin VB.Label Label1 
      Caption         =   "第一个文本框"
      BeginProperty Font 
         Name            =   "宋体"
         Size            =   10.5
         Charset         =   134
         Weight          =   400
         Underline       =   0   'False
         Italic          =   0   'False
         Strikethrough   =   0   'False
      EndProperty
      Height          =   315
      Left            =   225
      TabIndex        =   3
      Top             =   600
      Width           =   1290
   End
End
Attribute VB_Name = "Form1"
Attribute VB_GlobalNameSpace = False
Attribute VB_Creatable = False
Attribute VB_PredeclaredId = True
Attribute VB_Exposed = False
Dim txt As String, n As Integer, k As Integer
Private Sub Form_Load()
    n = 0
    txt = "２００８年世界奥运会将在中国北京市举行"
    k = Len(txt)
    Text1.ForeColor = RGB(255, 0, 0)      '用红色显示文字
    Text2.ForeColor = RGB(0, 0, 0)        '用黑色显示文字
    Text3.ForeColor = RGB(0, 0, 255)      '用蓝色显示文字
End Sub
Private Sub Timer1_Timer()
    n = n + 1
    If n <= k Then
        Text1.Text = Left(txt, n)
        Text2.Text = Space(2 * (k - n)) + Left(txt, n)
    Else
        n = 0
        Text1.Text = ""
        Text2.Text = ""
   End If
   If n Mod 2 = 0 Then
        Text3.Text = txt     'n为偶数时显示
   Else
        Text3.Text = ""      'n为奇数时清除
   End If
End Sub