If you are building a state chart tool, you can describe what a state is, what properties a state has, what kinds of states exist, how transitions between states are defined, and so on.

• 如果你正在创建一个状态图表工具，你能够描述以下被定义的信息：状态是什么、状态有什么属性、存在什么类型的状态、在状态间是怎样转变的，等等。