有如TNP定义类型及操作语句： Type Student SNo As Stri
题型：填空题
问题：
有如TNP定义类型及操作语句：
Type Student
SNo As String
SName As String
IAge As Integer
End Type
Dim Stu As Student
With Stu
.SNo="200609001"
.SName="陈果果"
.IAge=19
End With
执行MsgBox Stu.IAge后，消息框的输出结果是______。