第六周 项目二 建立链栈算法库

源文件：

#include<stdio.h>#include<malloc.h>typedef char ElemType;typedef struct linknode{    ElemType data;              //数据域    struct linknode *next;      //指针域} LiStack;                      //链栈类型定义void InitStack(LiStack *&s);  //初始化栈void DestroyStack(LiStack *&s);  //销毁栈int StackLength(LiStack *s);  //返回栈长度bool StackEmpty(LiStack *s);  //判断栈是否为空void Push(LiStack *&s,ElemType e);  //入栈bool Pop(LiStack *&s,ElemType &e);  //出栈bool GetTop(LiStack *s,ElemType &e);  //取栈顶元素void DispStack(LiStack *s);  //输出栈中元素

头文件：

#ifndef HEAD_H_INCLUDED#define HEAD_H_INCLUDED#include<stdio.h>#include<malloc.h>typedef char ElemType;typedef struct linknode{    ElemType data;              //数据域    struct linknode *next;      //指针域} LiStack;                      //链栈类型定义void InitStack(LiStack *&s);  //初始化栈void DestroyStack(LiStack *&s);  //销毁栈int StackLength(LiStack *s);  //返回栈长度bool StackEmpty(LiStack *s);  //判断栈是否为空void Push(LiStack *&s,ElemType e);  //入栈bool Pop(LiStack *&s,ElemType &e);  //出栈bool GetTop(LiStack *s,ElemType &e);  //取栈顶元素void DispStack(LiStack *s);  //输出栈中元素#endif // HEAD_H_INCLUDED

主函数：

#include"head.h"int main(){    ElemType e;    LiStack *s;    printf("(1)初始化链栈s\n");    InitStack(s);    printf("(2)链栈为%s\n",(StackEmpty(s)?"空":"非空"));    printf("(3)依次进链栈元素a,b,c,d,e\n");    Push(s,'a');    Push(s,'b');    Push(s,'c');    Push(s,'d');    Push(s,'e');    printf("(4)链栈为%s\n",(StackEmpty(s)?"空":"非空"));    printf("(5)链栈长度:%d\n",StackLength(s));    printf("(6)从链栈顶到链栈底元素:");    DispStack(s);    printf("(7)出链栈序列:");    while (!StackEmpty(s))    {        Pop(s,e);        printf("%c ",e);    }    printf("\n");    printf("(8)链栈为%s\n",(StackEmpty(s)?"空":"非空"));    printf("(9)释放链栈\n");    DestroyStack(s);    return 0;}