写VB程序代码 利用两重循环实现如图所示的结果
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Private Sub Form_Load()
Picture1.AutoRedraw = True
Dim i As Integer, j As Integer
Dim jx As String, sng As Integer
sng = 1
For i = 1 To 7
For j = 1 To i
jx = jx & j
Picture1.Print jx * sng;
Next
sng = -sng
jx = ""
Picture1.Print
Next
End Sub
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