程序实现了带表头单链表的最基本操作，包括创建链表，查询数值，插入结点，删除结点，链表分解，将单链表变为循环链表。并附有详细的注释和实验报告。-Procedures to achieve a single-list header with the most basic operation, including the creation of list, query value, insert node, delete node, chain decomposition, into a single