题型:综合题 题类:常考题 难易度:普通
浙江省高中信息技术 枚举算法及程序实现同步练习
Const n=12
Dim a(1 To n) As Integer
Dim flag(1 To 100) As Boolean
Private Sub Form_Load()
Dim i As Integer, t As Integer
For i=1 To 100
flag(i)=False
Next i
i=1
Do While i <=n
t=Int(Rnd * 100)+1
If Not flag(t) Then
List1.AddItem Str(t)
flag(t)=True
i=i+1
End If
Loop
End Sub
Private Sub Command1_Click()
Dim i As Integer, j As Integer, ans As Integer
ans=0
For i=1 To n
For j=i+1 To n
If a(i)+a(j) <=100 Then
IfThen
ans=ans+1
flag(a(i)+a(j))=False
End If
Next j
Next i
Label1.Caption="共有"+Str(ans)+"个数!"
End Sub
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