VB 输入半径,计算圆周长和圆面积
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运行通过,希望对你有帮助。
Private Sub Command1_Click()
Dim r As Double
r = Val(Text1.Text)
c = 2 * 3.14 * r
s = 3.14 * r * r
Print "周长c="; c; "面积s="; s
End Sub
Private Sub Form_Load()
Me.Show
Text1.Text = ""
MsgBox "请输入要计算的圆的半径"
Text1.SetFocus
End Sub
Private Sub Command1_Click()
Dim r As Double
r = Val(Text1.Text)
c = 2 * 3.14 * r
s = 3.14 * r * r
Print "周长c="; c; "面积s="; s
End Sub
Private Sub Form_Load()
Me.Show
Text1.Text = ""
MsgBox "请输入要计算的圆的半径"
Text1.SetFocus
End Sub
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