含有or或and的祈使句怎么赶成复合句

祈使句+and / or+简单句 可以变成If 引导的条件句
祈使句+and
============If…you…
祈使句+or
===========If…not…you…

例：
Work harder, and you'll pass the exam.
==If you work harder, you'll pass the exam.
如果你再努力些，你就会通过考试。

Hurry up, or you'll miss the train.
==If you don't hurry up, you'll miss the train.
如果你不快点儿，你就赶不上火车了。