VB寫成績問題
 

Public Class Form1
Inherits System.Windows.Forms.Form
Dim Grade(5, 6) As Object

Private Sub Form1_Load(ByVal sender As System.Object, ByVal e As _ System.EventArgs) Handles MyBase.Load
Grade(1, 1) = "小玫"
Grade(1, 2) = 98 '國文常識
Grade(1, 3) = 72 '計算機概論
Grade(1, 4) = 82 '動力學
Grade(1, 5) = 73 '或然率
Grade(1, 6) = 76 '體育

Grade(2, 1) = "小茹"
Grade(2, 2) = 89
Grade(2, 3) = 92
Grade(2, 4) = 86
Grade(2, 5) = 93
Grade(2, 6) = 82

Grade(3, 1) = "小君"
Grade(3, 2) = 63
Grade(3, 3) = 70
Grade(3, 4) = 60
Grade(3, 5) = 54
Grade(3, 6) = 70

Grade(4, 1) = "小雅"
Grade(4, 2) = 72
Grade(4, 3) = 68
Grade(4, 4) = 74
Grade(4, 5) = 82
Grade(4, 6) = 70

Grade(5, 1) = "小嫻"
Grade(5, 2) = 86
Grade(5, 3) = 82
Grade(5, 4) = 68
Grade(5, 5) = 70
Grade(5, 6) = 64

Button1.Text = "找出動力學最高分"
Button2.Text = "找出或然率最低分"
Button3.Text = "求出全班總平均"
End Sub
↑
其實上面不是重點
Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As _ System.EventArgs) Handles Button1.Click
Dim Max As Integer = 0
Dim Who As Integer<=為什麼明明是字串他可以顯示為名字呢
Dim I As Integer
For I = 1 To 5 If Grade(I, 4) >= Max Then
Max = Grade(I, 4)
Who = I
End If
Next
MsgBox("動力學最高分是：" & Grade(Who, 1))
End Sub

Private Sub Button2_Click(ByVal sender As System.Object, ByVal e As _ System.EventArgs) Handles Button2.Click
Dim Min As Integer = 100
Dim Who As Integer
Dim I As Integer
For I = 1 To 5
If Grade(I, 5) < Min Then
Min = Grade(I, 5)
Who = I
End If
Next
MsgBox("或然率最低分是：" & Grade(Who, 1))
End Sub

Private Sub Button3_Click(ByVal sender As System.Object, ByVal e As _ System.EventArgs) Handles Button3.Click
Dim Sum As Integer
Dim Cnt As Integer
Dim I, J As Integer
For I = 1 To 5
For J = 2 To 6
Sum += Grade(I, J)
Cnt += 1
Next
Next
MsgBox("全班總平均是：" & (Sum / Cnt))
End Sub
End Class
謝謝大家能夠為我解答喔
:on_66:

因為Grade(Who, 1)是字串,當然顯示出名字

因為WHO只是一個數字去表現你ARRAY裡的資料
Grade(I, 4)
那個I就是WHO
至於ARRAY找出符合的資料則是字串
所以WHO AS INTEGER是沒錯的