You can make multiple--you can put three or four-- the copy gets worse and worse each time, but you've got multiple copies.
你也可以复写多份,放上三四张复写纸-,不过越往下复印的效果会越差,但终归你还是有了多份副本。
And when you call a function, one of the things X that happens is whatever your passing in, for instance, X, ; and if this is A, this thing gets copied into A; so at that moment in time of calling increment, I actually have two copies of the same value in memory but they're referred to by different names.
当你调用一个函数,其中发生的一件事情是,不管你输入什么,比如,或者是A,它把这个东西复制到A中;,调用increment的时候,实际上在内存中,有两个同样的值的内存块,但是它们有不同的名字。
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