Private Sub command1_click()
Dim n1 As Long, n2 As Long
For i = 6 To 100 Step 2
For n1 = 2 To i / 2
n2 = i - n1
If IsPrime(n1) = True And IsPrime(n2) = True Then
S = n1 & "+" & n2 & "=" & i
Print S
'由此处输出在窗体上,你可以添加个list
'把结果放进列表里方便查询
'List1.AddItem S '比如这样
End If
Next
Next
End Sub
Function IsPrime(b As Long) As Boolean
Dim j As Long
If IsNumeric(b) = False Or b < 2 Then
IsPrime = False
Exit Function
Else
For j = 2 To Sqr(b)
If b Mod j = 0 Then
IsPrime = False
Exit Function
End If
Next j
IsPrime = True
End If
End Function