建立一个链表，每个结点包括：学号、姓名、性别、年龄。输入一个学号，如果链表中的结点所包含的学号等于此学号，则将此结点删去-Establish a linked list, each node comprising: Student ID, name, sex, age. Enter a student number, if the list of nodes contained in student number is equal to this school, then delete this