请教个问题
Private Sub Form_Click()Dim a As String
Form1.Print Chr(20); Tab(40); "九九乘法表"
Form1.Print Tab(35); "-----------------"
For i = 1 To 9
For j = 1 To i
a = i & "x" & j & "=" & i * j
Form1.Print Tab(6 * (3 * j - 1)); a;
Next j
Form1.Print
Next i
End Sub
Form1.Print Chr(20); Tab(40); "九九乘法表" 中的Chr(20); 代表什么