十万火急！！！跪求VB高手解答此程序填空题。最好解释一下。还有，这里面的m和n有什么作用啊？

Option Explicit Private Sub Form_Click() Dim m As Integer, n As Integer, s As String, i As Integer, j As Integer n = 4 m = 1 s = "*" For i = 5 To 1 Step -1 '**********FOUND********** Print Spc(n); 'n表示每行打印时开头的空格个数 Fo