known state

• 已知状态

known state的用法和样例：

例句

1. If every constructor sets every member to an explicit, known state, then member functions can distinguish between an empty object and one that has actual values.
   如果每个构造函数将每个成员设置为明确的已知状态，则成员函数可以区分空对象和具有实际值的对象。