It is useful for teaching regular expressions and state machines.
它有助于讲授正则表达式和状态机。
Thee quality or state of being periodic; recurrence at regular intervals.
周期性周期出现的性质或状态； ；以固定的间隔而发生。
Consequently, inspect the past and then regular a state.
因此，鉴于往事，有资于治道。
The quality or state of being periodic; recurrence at regular intervals.
周期性周期出现的性质或状态；
The quality or state of being periodic; recurrence at regular intervals.
周期性周期出现的性质或状态；
应用推荐