本程序用的是顺序栈，用地址连续的存储空间依次存储栈中的元素，并记录当前栈顶数据元素的位置，这样的栈称为顺序栈。-This procedure is the order of the stack, contiguous storage space in order of elements in the storage stack, and record the current stack location of the data elements so that the stack is called the order of the stack.