【简答题】Program according to the following requirements, and verify its correctness by an example. (1) define a class Rectangle describing the Rectangle, including data members: width and length; (2) calculat...
【简答题】Life is a sum of your choices. 2. Only a life lived for others is a life worthwhile. 3. There is no such thing in anyone’s life as an unimportant day. 4. Be glad of life because it gives you a chance ...