说明：  用栈逆置一个单链表请设计一个算法，利用一个栈，利用一个栈将一个单链表(a1，a2，…，an)(其中n≥0)逆置为(an，an-1，…，a1)
(A single linked list with a stack inverse set design an algorithm using a stack using a stack in a single linked list (a1, a2, ..., an) (where n ≥ 0) the inverse set (an, an-1, ..., a1))