N equals number of bytes requested by the user.
n等于用户请求的字节数。
The method for determining the required number of bytes is simple.
确定所需要字节数的方法很简单。
You do this by subtracting the number of bytes required from esp.
方法是从esp中减去所需的字节数。
It's just a little block of memory in RAM, you know, that represents four bytes, 32-bits and the Number Two is currently in it.
它只是一小块内存块,它表示4个字节,32位,那个数字2就存储在里面。
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