VB学习第七周--图形打印

1.字母金字塔

Public Class Form1


    Private Sub TextBox1_KeyPress(ByVal sender As Object,ByVal e As System.Windows.Forms.KeyPressEventArgs) Handles TextBox1.KeyPress
        Dim i%
        Dim s1 As String
        Label1.Text = ""
        For i = 1 To 10
            s1 = StrDup(2 * i - 1,Chr(Asc("A") + i - 1))
            Label1.Text &= Space(20 - i) & s1 & vbCrLf
        Next

    End Sub

   
    Private Sub TextBox1_TextChanged(ByVal sender As System.Object,ByVal e As System.EventArgs) Handles TextBox1.TextChanged

    End Sub

    Private Sub Form1_Load(ByVal sender As System.Object,ByVal e As System.EventArgs) Handles MyBase.Load

    End Sub
End Class

2.五角星金字塔

Public Class Form1


    Private Sub TextBox1_KeyPress(ByVal sender As Object,"☆")
            Label1.Text &= Space(20 - 2 * i) & s1 & vbCrLf
        Next
    End Sub

   
    Private Sub TextBox1_TextChanged(ByVal sender As System.Object,ByVal e As System.EventArgs) Handles MyBase.Load

    End Sub
End Class

3.数字倒金字塔

Public Class Form1


    Private Sub TextBox1_KeyPress(ByVal sender As Object,ByVal e As System.Windows.Forms.KeyPressEventArgs) Handles TextBox1.KeyPress
        If Asc(e.KeyChar) = 13 Then
            Dim i,j,n As Integer
            n = TextBox1.Text
            Label1.Text = ""
            For i = 1 To n
                Label1.Text &= Space(i)
                For j = 1 To 2 * (n - i) + 1
                    Label1.Text &= i
                Next
                Label1.Text &= vbCrLf
            Next
        End If
    End Sub

   
    Private Sub TextBox1_TextChanged(ByVal sender As System.Object,ByVal e As System.EventArgs) Handles MyBase.Load

    End Sub
End Class