Hello,

Assuming we have an object "spb", which has a member function named "getsize".

Now I want to invoke the "getsize" function. Could some one explain to me the difference between the following 2 methods:

-------method 1------------
::getsize();

-------method 2------------
spb test;
test.getsize();
-------------------------------

How are the two methods used under different circumstances ?
Thanks very much in advance,