外部连结 远端连结有何不同 ?

t7788

Workbooks.Open Filename:="k:\a.xls", UpdateLinks:=3
0, don’t update;
1, update external links but not remote links;
2, update remote links but not external links;
3, update all links.
The default is to prompt the user.




请教下面是属什么连结
1.DDE
2.='K:\xls3\[A.xls]Sheet1'!$O$1
3.=A3
4.=Sheet5!$AC$25