Number two, pointer dereferencing starts at the pointer and follows its arrow over to access its pointee.
第二,指针非关联化从指针开始,通过它的箭头,来使用它的指针数据。
Somewhere else in memory but it's a different number hence it's a different arrow.
内存中的其他地方,但是它是一个不同的数字,因此它是一个不同的箭头。
If you don't put an arrow on top, it means you're talking about just a number A.
如果不加这个小箭头,也就意味着你只是在讨论一个数字 A
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