用msgbox()顯示對(duì)話框
創(chuàng)新互聯(lián)公司專注于企業(yè)成都營銷網(wǎng)站建設(shè)、網(wǎng)站重做改版、烏當(dāng)網(wǎng)站定制設(shè)計(jì)、自適應(yīng)品牌網(wǎng)站建設(shè)、H5技術(shù)、商城網(wǎng)站定制開發(fā)、集團(tuán)公司官網(wǎng)建設(shè)、外貿(mào)網(wǎng)站制作、高端網(wǎng)站制作、響應(yīng)式網(wǎng)頁設(shè)計(jì)等建站業(yè)務(wù),價(jià)格優(yōu)惠性價(jià)比高,為烏當(dāng)?shù)雀鞔蟪鞘刑峁┚W(wǎng)站開發(fā)制作服務(wù)。
msgbox的用法很多,基礎(chǔ)的就是msgbox(“你要顯示的內(nèi)容”)
或者msgbox(“你要顯示的內(nèi)容”,16,"對(duì)話框名稱")'16是對(duì)話框的類型,還有幾個(gè)鍵的組合代碼,這個(gè)你可以
查查
,很多,或者你也可以用提示給出的類型,比如MsgBoxStyle.Exclamation就是顯示錯(cuò)誤對(duì)話框,
讀文件內(nèi)容到TextBox :
Try
Using sr As StreamReader = New StreamReader("C:\\TestFile.txt")
textbox1.Text = sr.ReadToEnd()
End Using
Catch E As Exception
Console.WriteLine(E.Message)
End Try
修改完成后,保存到文件:
Using sw As StreamWriter = New StreamWriter("C:\\TestFile.txt")
sw.Write(textbox1.Text)
sw.Close()
End Using
其中,流構(gòu)造的參數(shù)
New StreamReader("C:\\TestFile.txt")
New StreamWriter("C:\\TestFile.txt")
中的"C:\\TestFile.txt"可以用OpenFileDialog和SaveFileDialog的FileName屬性替換.
Dim openFileDialog1 As New OpenFileDialog()
openFileDialog1.InitialDirectory = "c:\"
openFileDialog1.Filter = "txt files (*.txt)|*.txt|All files (*.*)|*.*"
openFileDialog1.FilterIndex = 2
openFileDialog1.RestoreDirectory = True
If openFileDialog1.ShowDialog() = System.Windows.Forms.DialogResult.OK Then
Try
Using sr As StreamReader = New StreamReader(openFileDialog1.FileName)
textbox1.Text = sr.ReadToEnd()
End Using
Catch E As Exception
Console.WriteLine(E.Message)
End Try
End If
保存的時(shí)候換成SaveFileDialog就好
Filter 屬性設(shè)置當(dāng)前文件名篩選字符串,該字符串確定出現(xiàn)在對(duì)話框的“文件類型”框中的選項(xiàng)。
openFileDialog1.InitialDirectory = "c:\\" ;
openFileDialog1.Filter = "txt files (*.txt)|*.txt|All files (*.*)|*.*" ;
openFileDialog1.FilterIndex = 1 ; // 獲取或設(shè)置文件對(duì)話框中當(dāng)前選定篩選器的索引;
openFileDialog1.RestoreDirectory = true ;
對(duì)于每個(gè)篩選選項(xiàng),篩選器字符串都包含篩選器說明,后接一垂直線條 (|) 和篩選器模式。不同篩選選項(xiàng)的字符串由垂直線條隔開。
可以利用msgbox 實(shí)現(xiàn),也可以通過另外的窗體上畫出表格實(shí)現(xiàn)
方法一,利用msgbox:
Private Sub Command1_Click()Dim a As Long, b As Long, c As LongMsgBox "┌────┬────┬────┐" vbCrLf _ "│ 庫存1 │ 庫存2 │ 庫存3 │" vbCrLf _ "├────┼────┼────┤" vbCrLf _ "│" formatstr(a) "│" formatstr(b) "│" formatstr(c) "│" vbCrLf _ "└────┴────┴────┘" End SubPrivate Function formatstr(ByVal inputStr As String) As StringDim j As Integerj = (8 - Len(inputStr)) \ 2formatstr = Space(j) inputStr Space(j) Space((8 - Len(inputStr)) Mod 2)End Function
方法二,利用窗體實(shí)現(xiàn):
’新建form2窗體‘將以下代碼復(fù)制到form2窗體中Private Sub Form_Load()ShowPrint "┌────┬────┬────┐" vbCrLf _ "│ 庫存1 │ 庫存2 │ 庫存3 │" vbCrLf _ "├────┼────┼────┤" vbCrLf _ "│" formatstr(a) "│" formatstr(b) "│" formatstr(c) "│" vbCrLf _ "└────┴────┴────┘" End SubPrivate Function formatstr(ByVal inputStr As String) As StringDim j As Integerj = (8 - Len(inputStr)) \ 2formatstr = Space(j) inputStr Space(j) Space((8 - Len(inputStr)) Mod 2)End Function‘將以下代碼復(fù)制在form1窗體中Private Sub Command1_Click()Form2.ShowEnd Sub