Introduction - If you have any usage issues, please Google them yourself
Enter a circular linked list, each node keep some things, such as deposit int number, that is constructed list, Node1 (deposit number 3)-> Node2 (6)-> Node3-> Node4-> Node1, then enter a location, such as 1, positioned to Node2, Node2 start at intervals of from three to delete a Node Node, until the end of the list to delete