vb成绩转等级 90以上优秀.80以上良好.70以上中等.60以上及格.60以下不及格

vb成绩转等级 90以上优秀.80以上良好.70以上中等.60以上及格.60以下不及格

Private Sub Command1_Click()
On Error Resume Next
If Text1.Text < 0 Or Text1.Text > 100 Or Not IsNumeric(Text1.Text) Then Exit Sub
Select Case Text1.Text
Case Is >= 90
Text2.Text = "优秀"
Case Is >= 80
Text2.Text = "良好"
Case Is >= 70
Text2.Text = "中等"
Case Is >= 60
Text2.Text = "及格"
Case Is < 60
Text2.Text = "不及格"
End Select
End Sub
Private Sub Command2_Click()
Text1.Text = ""
Text2.Text = ""
End Sub

Private Sub Command1_Click()
dim a as string
dim b as string
a=label1
if (a>=90) then
b="优秀"
elseif (a>=80) then
b="良好"
elseif (a>=70) then
b="中等"
elseif (a>=60) then
b="及格"
else
b="不及格"
end if
label2=b
End Sub

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