Visual Basic中,对于文本比较好的处理方式.

VERSION 5.00
Begin VB.Form Form1 
   Caption         =   "复选框的使用"
   ClientHeight    =   2580
   ClientLeft      =   60
   ClientTop       =   345
   ClientWidth     =   4545
   LinkTopic       =   "Form1"
   ScaleHeight     =   2580
   ScaleWidth      =   4545
   StartUpPosition =   3  '窗口缺省
   Begin VB.CheckBox Check4 
      Caption         =   "红色"
      BeginProperty Font 
         Name            =   "宋体"
         Size            =   12
         Charset         =   134
         Weight          =   400
         Underline       =   0   'False
         Italic          =   0   'False
         Strikethrough   =   0   'False
      EndProperty
      Height          =   255
      Left            =   2850
      TabIndex        =   5
      Top             =   1875
      Width           =   855
   End
   Begin VB.CheckBox Check3 
      Caption         =   "25号字"
      BeginProperty Font 
         Name            =   "宋体"
         Size            =   12
         Charset         =   134
         Weight          =   400
         Underline       =   0   'False
         Italic          =   0   'False
         Strikethrough   =   0   'False
      EndProperty
      Height          =   375
      Left            =   975
      TabIndex        =   4
      Top             =   1875
      Width           =   1095
   End
   Begin VB.CheckBox Check2 
      Caption         =   "斜体"
      BeginProperty Font 
         Name            =   "宋体"
         Size            =   12
         Charset         =   134
         Weight          =   400
         Underline       =   0   'False
         Italic          =   0   'False
         Strikethrough   =   0   'False
      EndProperty
      Height          =   375
      Left            =   2850
      TabIndex        =   3
      Top             =   1350
      Width           =   855
   End
   Begin VB.CheckBox Check1 
      Caption         =   "楷体"
      BeginProperty Font 
         Name            =   "宋体"
         Size            =   12
         Charset         =   134
         Weight          =   400
         Underline       =   0   'False
         Italic          =   0   'False
         Strikethrough   =   0   'False
      EndProperty
      Height          =   255
      Left            =   960
      TabIndex        =   2
      Top             =   1425
      Width           =   855
   End
   Begin VB.TextBox Text1 
      BeginProperty Font 
         Name            =   "宋体"
         Size            =   12
         Charset         =   134
         Weight          =   400
         Underline       =   0   'False
         Italic          =   0   'False
         Strikethrough   =   0   'False
      EndProperty
      Height          =   660
      Left            =   375
      ScrollBars      =   2  'Vertical
      TabIndex        =   0
      Top             =   450
      Width           =   3810
   End
   Begin VB.Label Label1 
      Caption         =   "请在文本框中键入文字"
      BeginProperty Font 
         Name            =   "宋体"
         Size            =   12
         Charset         =   134
         Weight          =   400
         Underline       =   0   'False
         Italic          =   0   'False
         Strikethrough   =   0   'False
      EndProperty
      Height          =   255
      Left            =   1080
      TabIndex        =   1
      Top             =   120
      Width           =   2415
   End
End
Attribute VB_Name = "Form1"
Attribute VB_GlobalNameSpace = False
Attribute VB_Creatable = False
Attribute VB_PredeclaredId = True
Attribute VB_Exposed = False
Private Sub check1_click()
    If Check1.Value = 1 Then  '判复选框1是否选中
        Text1.FontName = "楷体_GB2312"
    Else
        Text1.FontName = "宋体"
    End If
End Sub
Private Sub check2_click()
    If Check2.Value = 1 Then  '判复选框2是否选中
        Text1.FontItalic = True
    Else
        Text1.FontItalic = False
    End If
End Sub
Private Sub check3_click()
    If Check3.Value = 1 Then  '判复选框3是否选中
        Text1.FontSize = 25
    Else
        Text1.FontSize = 9
    End If
End Sub
Private Sub check4_click()
    If Check4.Value = 1 Then  '判复选框4是否选中
        Text1.ForeColor = RGB(255, 0, 0)
    Else
        Text1.ForeColor = RGB(0, 0, 0)
    End If
End Sub