我从来没有错过一次，不是永远。是的，它[MI]变得复杂，是的，接口确实在很多方面类似的工作 - 但这还不是最大的一点：在一般意义上，它根本不需要的大部分时间。即使是单继承过度使用在许多情况下。

I've never missed it once, not ever. Yes, it [MI] gets complicated, and yes, interfaces do a similar job in many ways - but that isn't the biggest point: in the general sense, it simply isn't needed most of the time. Even single inheritance is overused in many cases.