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. 编程实现两字符串的连接。要求使用字符数组保存字符串，不要使用系统函数。

4. 使用 string 类声明字符串对象，重新实现上一小题。

5. 声明一个Employee　　类，其中包括姓名、街道地址、城市和邮编等属性，以及change_name()和 display()等函数。display()显示姓名、街道地址、城市和邮编等属性，change_name()改变对象的姓名属性，实现并测试这个类。

6. 声明包含 5 个元素的对象数组，每个元素都是 Employee 类型的对象。

-1 write and test 33 matrix transpose function, use an array to save 33 matrix. (2) use of dynamic memory allocation dynamic array to re-generate the complete title, use the pointer to achieve the function does. 3 programming two string connections. Require the use of an array of characters stored string, do not use the system function. 4 Use the string class declaration string object on a small problem reimplement. 5. Declare an Employee class, which includes your name, street address, city and zip code and other attributes, as well change_name () and display () and other functions. display () displays the name, street address, city and zip code and other attributes, change_name () to change the name of the object attributes, implement and test this class. 6 The statement contains five elements of an array of objects, each element is an object of type Employee.