红领巾公园篮球场:这道题怎么做啊

来源：百度文库编辑：神马品牌网时间：2024/04/30 00:43:32

Private Sub Command1_Click()
Select Case x
Case x >= 90
Print "优"
Case x >= 80
Print "良"
Case x >= 70
Print "中"
Case x >= 60
Print "及格"
Case Else
Print "不及格"
End Select
x = Val(Text1)
End Sub
20.已知x代表某个百分制成绩，下列程序段用于显示对应的五级制成绩，正确的是（C）
A)If x > = 60 Then
Print "及格"
ElseIf x > = 70 Then
Print "中"
ElseIf x > = 80 Then
Print "良"
ElseIf x > = 90 Then
Print "优"
Else
Print "不及格"
End If
B)If x < 90 Then
Print "良"
ElseIf x < 80 Then
Print "中"
ElseIf x < 70 Then
Print "及格"
ElseIf x < 60 Then
Print "不及格"
Else
Print "优"
End If
C)If x > = 90 Then
Print "优"
ElseIf x > = 80 Then
Print "良"
ElseIf x > = 70 Then
Print "中"
ElseIf x > = 60 Then
Print "及格"
Else
Print "不及格"
End If
D)Select Case x
Case x > = 90
Print "优"
Case x > = 80
Print "良"
Case x > = 70
Print "中"
Case x > = 60
Print "及格"
Case Else
Print "不及格"
End Select

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