小青用VB设计了如下图所示的程序界面:
Private Sub Command1_Click()
Dim ma as single
Dim mb as single
Dim s as single
Ma =10*30
Mb = 0.000001
For I = 1 to ①
Mb = ②
S= s + mb
Next I
Text1.text = str(ma)
Text2.text = str(s)
End sub
①应填的内容是 ,②中应填的内容是。
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