如何设置vim autoclose支架没有空白？

I'm using gvim7.3 on windows7. When I type "[" or "(" or "{" vim will autoclose them like: "[ | ]" "( | )" "{ | }", "|" is the cursor position. But I want it autoclose without blanks like: "[|]" "(|)" "{|}", how to set the vim to do this? Thanks.I'm using gvim7.3 on windows7. When I type "["