How to get CustomInfo

Hi,all.I got a problem here.

I want to get CustomInfo by code.And I know there is a function like swDoc.get_CustomInfo("").

But when I get CustomInfo which I set in property tab builder like these image:

or this :

Their value shows in my SLDPRT file like this:

or

I got \$PRP:"MODEL_VERSION"  or "SW-Material@零件1.SLDPRT",

But I'd like to get the value V1.0 or 0.002.

Anybody knows how to get them by code?Thanks

SolidworksApi macros