???????н????

???????????￡?

????1??????????h???????ù?????

????2?????“Entering f()”?????

????3??????f()?????????????????????Temp?????????????????????????h???????????Temp??

????4??????f()????????“return x”????????????????????????Temp???????????h2?У????????????????????????????????Temp

????5??????????

????6??????f()?????????????????????Temp?????????????????????????h???????????Temp??

????7??????f()????????????????????x????“return x”????????????????????????Temp???????????x?У??????????????????????????????????Temp???????????x

????8????main??????????????????????????????????h2???????????h