If I had worked hard at school,I would be an engineer,too.

题目

If I had worked hard at school,I would be an engineer,too.
与If I had worked hard at school,I would have been an engineer,too.
求教两者之间语气的区别
两者意思是一样的吗

答案

不一样
前者的虚拟语气had worked和would be强调了当初和现在的关系 当初学好 现在成工程师
后一句had worked和would have been强调了幻想当初的场景 当初学好 当初早已成工程师