问题
I see that grow and push accept an optional weighting parameter, but apart from that: what is the real difference between grow, fill, and push? The documentation isn't very clear about that.
回答1:
push affects only gaps, not elements, as far as I know.
If a component is set to fill, this means to set all subcomponents to grow, while grow affects the component directly.
回答2:
The push constraint does affect elements. It is only one of its contexts where
it makes gaps greedy.
The answer is a bit more complex. I have provided it in a more recent question.
来源：https://stackoverflow.com/questions/10130988/what-is-the-difference-between-push-grow-and-fill-in-miglayout