求编程赐教！

2013-03-01

求编程指教！！！！！题目为：创建一个窗体，接受员工信息，冰封装在Employee类的对象中，在调用employee类的Displa

求编程指教！！！！！
题目为：创建一个窗体，接受员工信息，冰封装在Employee类的对象中，在调用employee类的Display方法输出。
下面是我写的程序，为什么输出来的都是空的。我是新手，求指教。
谢谢您
Public Class Form1
    Public Class employee
        Private namevalue As String
        Private agevalue As Integer
        Private Sexvalue As String
        Private salvalue As Integer
        Public Property name() As String
            Get
                Return namevalue
            End Get
            Set(ByVal value As String)
                namevalue = value
            End Set
        End Property
        Public Property age() As String
            Get
                Return agevalue
            End Get
            Set(ByVal value As String)
                agevalue = value
            End Set
        End Property
        Public Property Sex() As String
            Get
                Return Sexvalue
            End Get
            Set(ByVal value As String)
                Sexvalue = value
            End Set
        End Property
        Public Property Sal() As String
            Get
                Return salvalue
            End Get
            Set(ByVal value As String)
                salvalue = value
            End Set
        End Property

        Public Sub display()
            Dim msg As String = "姓名：" & name & ControlChars.CrLf _

                               & "年龄：" & age & ControlChars.CrLf _
                               & "性别：" & Sex & ControlChars.CrLf _
                               & "薪资：" & Sal
            MsgBox(msg)
        End Sub
    End Class
    Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click
        Dim strname As String = TextBox1.Text
        Dim strAge As Integer = Convert.ToInt32(TextBox2.Text)
        Dim strSex As String = "男"
        Dim strSal As Integer = Convert.ToInt32(TextBox3.Text)
        If RadioButton2.Checked Then
            strSex = "女"
        End If
        Dim emp As employee = New employee(strname, strAge, strSex, strSal)
        emp.display()
    End Sub
    Private Sub Button2_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button2.Click
        TextBox1.Text = ""
        TextBox2.Text = ""
        TextBox3.Text = ""
        RadioButton1.Checked = True
    End Sub
End Class 编程
[解决办法]
Dim emp As employee = New employee(strname, strAge, strSex, strSal)
=>
age = strAge
sex = strSex
...
即可。
[解决办法]


Public Sub New(ByVal name As String, ByVal age As String, ByVal sex As String, ByVal sal As String)
            Me.name = name
            Me.age = age
            Me.Sex = sex
            Me.Sal = sal
End Sub

在前面写一个构造方法，否则你实例化出来的那个对象没有把参数传进去
[解决办法]
没有构造你这应该编译不过去吧，觉得你这基本两种方式应该就没问题了

第一种，加构造

Public Sub New(ByVal name As String, ByVal age As Integer, ByVal sex As String, ByVal sal As Integer)
            Me.namevalue = name
            Me.agevalue = age
            Me.Sexvalue = sex
            Me.salvalue = sal
        End Sub

第二种

Dim emp As employee = New employee(strname, strAge, strSex, strSal)

改为

 Dim emp As employee = New employee()
        emp.name = strname
        emp.age = strAge
        emp.Sex = strSex
        emp.Sal = strSal
        emp.display()

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求编程赐教！