Visual Basic中,对于文本比较好的处理方式.

VERSION 5.00
Begin VB.Form Form1 
   Caption         =   "查找考试教室"
   ClientHeight    =   1425
   ClientLeft      =   60
   ClientTop       =   345
   ClientWidth     =   4935
   LinkTopic       =   "Form1"
   ScaleHeight     =   1425
   ScaleWidth      =   4935
   StartUpPosition =   3  '窗口缺省
   Begin VB.CommandButton Command1 
      Caption         =   "查找"
      BeginProperty Font 
         Name            =   "宋体"
         Size            =   12
         Charset         =   134
         Weight          =   400
         Underline       =   0   'False
         Italic          =   0   'False
         Strikethrough   =   0   'False
      EndProperty
      Height          =   360
      Left            =   3750
      TabIndex        =   4
      Top             =   225
      Width           =   855
   End
   Begin VB.TextBox Text2 
      BeginProperty Font 
         Name            =   "宋体"
         Size            =   12
         Charset         =   134
         Weight          =   400
         Underline       =   0   'False
         Italic          =   0   'False
         Strikethrough   =   0   'False
      EndProperty
      Height          =   375
      Left            =   1680
      TabIndex        =   3
      Text            =   " "
      Top             =   720
      Width           =   1680
   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          =   375
      Left            =   1680
      TabIndex        =   2
      Text            =   " "
      Top             =   120
      Width           =   855
   End
   Begin VB.Label Label2 
      Caption         =   "考试教室"
      BeginProperty Font 
         Name            =   "宋体"
         Size            =   12
         Charset         =   134
         Weight          =   400
         Underline       =   0   'False
         Italic          =   0   'False
         Strikethrough   =   0   'False
      EndProperty
      Height          =   255
      Left            =   480
      TabIndex        =   1
      Top             =   840
      Width           =   1095
   End
   Begin VB.Label Label1 
      Caption         =   "准考证号码"
      BeginProperty Font 
         Name            =   "宋体"
         Size            =   12
         Charset         =   134
         Weight          =   400
         Underline       =   0   'False
         Italic          =   0   'False
         Strikethrough   =   0   'False
      EndProperty
      Height          =   255
      Left            =   360
      TabIndex        =   0
      Top             =   240
      Width           =   1335
   End
End
Attribute VB_Name = "Form1"
Attribute VB_GlobalNameSpace = False
Attribute VB_Creatable = False
Attribute VB_PredeclaredId = True
Attribute VB_Exposed = False
Dim rm(6, 3) As Integer
Private Sub Form_Load()
    rm(1, 1) = 2101: rm(1, 2) = 2147: rm(1, 3) = 102
    rm(2, 1) = 1741: rm(2, 2) = 1802: rm(2, 3) = 103
    rm(3, 1) = 1201: rm(3, 2) = 1287: rm(3, 3) = 114
    rm(4, 1) = 3333: rm(4, 2) = 3387: rm(4, 3) = 209
    rm(5, 1) = 1803: rm(5, 2) = 1829: rm(5, 3) = 305
    rm(6, 1) = 2511: rm(6, 2) = 2576: rm(6, 3) = 306
End Sub
Private Sub command1_Click()
    Dim no As Integer, flag As Integer
    flag = 0          '查找标记，0表示未找到
    no = Val(Text1.Text)
    For i = 1 To 6
        If no >= rm(i, 1) And no <= rm(i, 2) Then
            Text2.Text = rm(i, 3)    '显示教室号码
            flag = 1                 '1表示找到
            Exit For
        End If
    Next i
    If flag = 0 Then
        Text2.Text = "无此准考证号码"
    End If
    Text1.SetFocus                  '设置焦点
End Sub