第1个回答 2013-04-26
Private Sub Command1_Click()
Dim r As Long, c As Long, s As Long, v As Long
r = InputBox("请输入圆半径:", "圆半径")
c = 3.14 * r * r
s = 4 * 3.14 * r * r
v = (4 / 3) * 3.14 * r * r * r
Label4.Caption = c
Label5.Caption = s
Label6.Caption = v
End Sub
在VISUAL BASIC 程序设计教程(第四版) 71本回答被提问者采纳