请问VB.NET中可以在for循环语句中嵌套for语句嘛?为什么系统不报错哦!
Private Sub Form1_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.LoadDim a, b, c As Integer
For a = 100 To 200
c = a
For b = 2 To c - 1
If c Mod b = 0 Then
Else
textbox1.text &=str(3)
TextBox1.Text &= Str(c) + "是素数!!" + TextBox1.Text + Chr(13) + Chr(10)
End If
Next
Next