Do
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Application.DoEvents()
Loop Until MSComm1.InBufferCount = 13
Dim a As String = MSComm1.Input
Label1.Caption = a.Substring(1, 9)
Label2.Caption = a.Substring(10, 3)
var reg = /;SPLIT(?:(?!;SPLIT)[\s\S])*;SPLIT/g;
var str = "";
str.replace(reg,"");
可以使用 New 关键字对类进行实例化,如
Dim frmDemo As New Form1
'代码来源:代码街codejie.net
'由于在vb.net里变量名不区分大小写(StuName和stuname是一样的),所以个别变量名需要修改
'在vb.net中,模块级变量的命名原则是以m_开头
Public Class Student
Private m_stuNo As String '学生号字段
Private m_stuName As String '学生姓名字段
Private m_stuAge As Integer '学生年龄字段
Private m_stuAddress As String '学生住址字段
'无参构造方法
Public Sub New()
End Sub
'有参构造方法
Public Sub New(ByVal stuNo As String, ByVal stuName As String, ByVal stuAge As Integer, ByVal stuAddress As String)
m_stuNo = stuNo
m_stuName = stuName
m_stuAge = stuAge
m_stuAddress = stuAddress
End Sub
'学生号属性
Public Property StuNo() As String
Get
Return m_stuNo
End Get
Set(ByVal value As String)
m_stuNo = value
End Set
End Property
'学生姓名属性
Public Property StuName() As String
Get
Return m_stuName
End Get
Set(ByVal value As String)
m_stuName = value
End Set
End Property
'学生年龄属性
Public Property StuAge() As Integer
Get
Return m_stuAge
End Get
Set(ByVal value As Integer)
m_stuAge = value
End Set
End Property
'学生住址属性
Public Property StuAddress() As String
Get
Return m_stuAddress
End Get
Set(ByVal value As String)
m_stuAddress = value
End Set
End Property
End Class
time1是一个计时器对象,这句的意思是将方法time1_Tick注册到time1的触发事件上,也就是说time1每个指定的时间就执行time1_Tick方法。
VB.Net写法:
time1.Tick += New EventHandler(time1_Tick)