Find base address

I'm trying to do my own server files with customs, I already know the basic of programming but sometimes I get stuck in some complex stuff.

Is there a guide or something else to learn how to get a "base address"? I mean, I know how to get the function offset with ollydbg or even with cheat engine, it's always a value like this: 0x00401046 (GameServ.CloseClient)

I use some sources for studying purposes, and in some of them I found some thing like this: 0x9F33D20

Code:

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CParty* gParty = (CParty*)0x9F33D20;

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Because of the number I know that this is not a simple offset, I presume that is an object pointer or something else (base addres, maybe?), but the question is: how do I get fome function base address or pointer?

Thanks in advance.