9-4.frm

vb编程+从基础到实践光盘代码

VERSION 5.00
Begin VB.Form Form1 
   Caption         =   "Form1"
   ClientHeight    =   1620
   ClientLeft      =   60
   ClientTop       =   345
   ClientWidth     =   3135
   BeginProperty Font 
      Name            =   "宋体"
      Size            =   21.75
      Charset         =   134
      Weight          =   400
      Underline       =   0   'False
      Italic          =   0   'False
      Strikethrough   =   0   'False
   EndProperty
   LinkTopic       =   "Form1"
   ScaleHeight     =   1620
   ScaleWidth      =   3135
   StartUpPosition =   3  '窗口缺省
End
Attribute VB_Name = "Form1"
Attribute VB_GlobalNameSpace = False
Attribute VB_Creatable = False
Attribute VB_PredeclaredId = True
Attribute VB_Exposed = False
Option Explicit

Private Sub Form_Click()
    Dim a, b
    a = 4
    b = "79"
    Dim c As String
    c = a + b
    '期望得到c的值为“479”，可实际得到的结果为“83”
    Print c
End Sub