I don't' have any bread 和 I haven't got mu

I don't' have any bread 和 I haven't got mu
I don't' have any bread 和 I haven't got much bread.这两句细微的区别.为什么一个是any 一个是 much 这两个词的区别在哪里呢?got 的用法,在什么时候用比较合适?