结构体指针变量示例应用:有10个学生，每个学生的数据包括学好，姓名，3门课程的成绩，从键盘输入10个学生数据，要求输出3门课程总平均成绩，以及最高分的学生的数

据（包括学好，姓名，3门课程成绩）-Structure pointer variable sample application: There are 10 students, each student to learn the data, the names of three courses of results, from 10 students to keyboard input data, output requirements of three courses of total average scores, as well as the highest score of the students data (including the master, name, course 3 results)