有没有比使用正则表达式更快地解析主题标签的方法？(Is there a faster way to parse hashtags than using Regular Expressions?)

 那么，首先考虑哪些数据位自然地结合在一起。 例如，如果你有一名球员的名字，得分，位置，生命数量等等，这就表明你应该有一个Player类。 因此，请查看所有状态，将其分为不同的组，然后检查您现有的哪些方法仅适用于一组状态或另一组状态......并将方法置于其感兴趣的状态。 
 
 当一个方法需要处理来自多个对象的状态时，它会变得更复杂：当然，这通常意味着您将代码放在一个类型中，并将另一个类型作为参数传递。 
 
 很多这是直觉，说实话 - 以上只是起点。 随着时间的推移，它会变得更容易一些，并且您可能会开始更多地考虑责任而不仅仅是数据 - 但这是一个很好的起点，因为您可能已经拥有了所需的数据，而没有以正确的方式进行组织。而决定系统内的责任可能会更加困难。 

Well, start off by thinking of which bits of data go together naturally. For example, if you have a player's name, score, position, number of lives etc, that would suggest you should have a Player class. So take a look at all the state, split it up into different groups, and then check which of your existing methods only work with one group of state or another... and put the methods with the state they're interested in.
 
It gets trickier when one method needs to deal with state from multiple objects, of course: typically that means you'll put the code in one type and pass the other type in as a parameter.
 
A lot of this is gut feeling, to be honest - the above are only starting points. Over time it gets somewhat easier, and you'll probably start to think more in terms of responsibilities than just data - but it's a good starting point, as you probably already have the data you need, just not organized in the right way... whereas deciding on the responsibilities within the system can be a lot harder.