That's exactly the same code as before, just wrapped with prologue and epilogue code.

这与之前的代码完全相同，不过增加了序言和尾声代码。

youdao

The epilogue will be discussed in the analysis of the factorial code, but it basically just takes down the stack frame and returns to the previous function.

该段代码的尾声（epilogue）将在分析 factorial 代码时再作讨论，但总的来说，它的作用是结束堆栈框架并返回到先前的函数。

youdao