编程实现成绩表及其相关操作，具体要求如下：

自定义类型Score为: 结构体类型{学生名+课程名+分数}

自定义类型ElemType为: Score

自定义类型SqList为包含如下两个成员的结构体类型:

{基类型为ElemType的动态数组elem int length}

实现如下针对SqList的函数

InputSco OutputSco InputElem OutputElem

ListCreate_Sq ListPrint_Sq ListDelete_Sq

编写主函数对上述函数进行测试

-Programming scores table and its related operations, specific requirements are as follows: the custom types Score: structure type {student name+ course name the+ Score} since defined type ElemType of: Score the custom type SqList for the structure contains the following two members body type: {base type for ElemType dynamic array elem　The int length} realized as follows for SqList function InputSco OutputSco InputElem OutputElem ListCreate_Sq ListPrint_Sq ListDelete_Sq write the main function of these functions test