1、编写并测试3×3矩阵转置函数，使用数组保存3×3矩阵

2、使用动态内存分配生成动态数组来重新完成上题，使用指针实现函数的功能。

3.写一个程序，定义基类车Vehicle，有Run，Stop等成员函数，由它派生出2个派生类：（自行车类）、（汽车类），从Bbicyce 、Motoracar派生出Motorcycle（摩托车类），它们都有Run，Stop等成员函数。注意虚函数的作用。

-1, to prepare and test the 3 × 3 matrix transpose function, use the array to save 3 × 3 matrix 2, using dynamic memory allocation to re-generate dynamic array to complete the title, use the pointer to achieve the function function. 3. To write a program to define the base class Car Vehicle, with Run, Stop and other member functions, which it has derived two derived classes: (bicycle type), (car class), from Bbicyce, Motoracar derived Motorcycle (Motorcycle Class ), they have the Run, Stop and other member functions. Note that the role of virtual functions.