主题：关于try中嵌套try后，sql事务出错回滚的疑问？

参考代码

try
    Dim flag As Boolean = True
    try
        Dim i As Integer = "abc"
    catch exx As exception
        msgbox(3)
        flag = False
    End try
    If flag = False Then
        msgbox("中间有错")
    End If
catch ex As exception
    msgbox(2)
finally
    msgbox(1)
End try