In the late semifinal, North Carolina took an 8-6 lead on a three-pointer from Wayne Ellington three minutes into the game and never looked back.

VOA: standard.2009.04.05

Right now it's empty, actually it's not quite empty, it has a pointer back to the class.

当我调用了这个类的，定义声明的时候，它在内存中的特定点。

麻省理工公开课 - 计算机科学及编程导论课程节选