定义一个学生类，其中有3个数据成员有学号、姓名、年龄，以及若干成员函数。同时编写主函数使用这个类，实现对学生数据的赋值和输出。要求：（1）使用成员函数实现对数据的输入、输出（2）使用构造函数和析构函数实现对数据的初始化。-definition of a category of students, including three members of school data, names, ages, as well as several members of function. While the main function uses the preparation of this category of students achieving the assignment and data output. Requirements : (1) the use of members Function of data input, output (2) the use of constructors and destructors realization of data initialization.