VB.NET实现word打开与关闭

VB.NET版实现word打开与关闭，有兴趣的朋友可以研究一下。
VB.NET实现word打开与关闭
Imports Word
'打开
Dim mWordapp As Word.Application 'word 应用程序
Dim mobjDoc As Word.Document 'word 文档
Dim fullFileName as string '文件路径
mWordapp = CreateObject("Word.Application")
mobjDoc = mWordapp.Documents.Add(FullFileName)
'关闭
Dim missing As Object = System.Reflection.Missing.Value
mWordapp.Application.Quit()
If Not mobjDoc Is Nothing Then
'垃圾回收
System.Runtime.InteropServices.Marshal.ReleaseComObject(mobjDoc)
mobjDoc = Nothing
End If
If Not mWordapp Is Nothing Then
System.Runtime.InteropServices.Marshal.ReleaseComObject(mWordapp)
mWordapp = Nothing
End If
'真正释放word进程
GC.Collect()