main.c
//////////////////////////////////////////////////////////////////////////////////
#include<iostream>
#include"string"
#include"seqlist.h"
using namespace std;
//创建节点，遍历输出节点，删除节点
typedef struct Teacher
{
	int age;
	string name;

}Teacher;

//
//SeqList* SeqList_Create(int capacity);
//
//void SeqList_Destroy(SeqList* list);
//
//void SeqList_Clear(SeqList* list);
//
//int SeqList_Length(SeqList* list);
//
//int SeqList_Capacity(SeqList* list);
//
//int SeqList_Insert(SeqList* list, SeqListNode* node, int pos);
//
//SeqListNode* SeqList_Get(SeqList* list, int pos);
//
//SeqListNode* SeqList_Delete(SeqList* list, int pos);
int main()
{
	Teacher t1, t2, t3, t4;
	t1.age = 31;
	t2.age = 32;
	t3.age = 33;
	t4.age = 34;

	SeqList* list;
	Teacher *it;
	int reg;
	list = SeqList_Create(4);//顺序存储必须在先开辟内存。
	//进行到每一步，一定要验证
	if (list == NULL)
	{
		cout << "create fail \n";
		return 0;
	}

//int SeqList_Insert(SeqList* list, SeqListNode* node, int pos);
//因为这里原来的式子node是一个指针，也就是地址，这里的也必须是指针类型的。

//	reg =  SeqList_Insert(list, (SeqListNode*)  t1, 0); 为什么这种的就不对呢？
	reg = SeqList_Insert(list, (SeqListNode*) &t1, 0);
	reg = SeqList_Insert(list, (SeqListNode*)&t2, 0);
	reg = SeqList_Insert(list, (SeqListNode*)&t3, 0);
	reg = SeqList_Insert(list, (SeqListNode*)&t4, 0);

	for (int i = 0; i < SeqList_Length(list); i++)
	{
		//SeqListNode* SeqList_Get(SeqList* list, int pos);
		Teacher *temp = (Teacher *)SeqList_Get(list, i);
		if (temp == NULL)
		{
			cout << " failed \n";
			return 0;
		}
		cout << temp->age << endl;
	}

	//SeqListNode* SeqList_Delete(SeqList* list, int pos);
	while (SeqList_Length(list))
	{
		SeqList_Delete(list, 0);
	}
	
	system("pause");
	
}

seqlist.h
///////////////////////////////////////////////////////////
#pragma once
typedef void SeqList;
typedef void SeqListNode;

SeqList* SeqList_Create(int capacity);

void SeqList_Destroy(SeqList* list);

void SeqList_Clear(SeqList* list);

int SeqList_Length(SeqList* list);

int SeqList_Capacity(SeqList* list);

int SeqList_Insert(SeqList* list, SeqListNode* node, int pos);

SeqListNode* SeqList_Get(SeqList* list, int pos);

SeqListNode* SeqList_Delete(SeqList* list, int pos);

seqlist.c
////////////////////////////////////////////////
#include "seqlist.h"
#include<iostream>
#include"string.h"
typedef struct Tseqlist
{
	int length;
	int capacity;
	int *node;
}Tseqlist;

SeqList* SeqList_Create(int capacity)
{
	Tseqlist *tem = NULL;
	int ret = 0;
	tem = (Tseqlist *)malloc(sizeof(Tseqlist));
	if (tem == NULL)
	{
		
		return NULL ;
	}
	memset(tem, 0, sizeof(Tseqlist));
	tem->node = (int *)malloc(sizeof(int)*capacity);
	if (tem->node == NULL)
	{
		return NULL;
	}
	tem->capacity = capacity;
	tem->length = 0;

	return tem;
}
//释放前一步create创建的内存空间
void SeqList_Destroy(SeqList* list)
{
	Tseqlist *D_list = NULL;
	D_list = (Tseqlist *)list;
	if (D_list == NULL)
	{
		return;
	}
	if (D_list->node != NULL)
	{
		free(D_list->node);
	}
	free(D_list);
}
//清空就是回到初始状态  这种写法我看不懂，为什么呢？ 这样子的话仅仅是自己创建的C_list被初始化，而实际的list依旧没有被初始化
//别人传来的一个seqlist 空类型，但是我知道其实是 Tseqlist类型的

void SeqList_Clear(SeqList* list)
{
	Tseqlist *C_list = NULL;
	C_list = (Tseqlist *)list;
	if (C_list == NULL)
	{
		return;
	}
	C_list->length = 0;
}

int SeqList_Length(SeqList* list)
{
	Tseqlist *C_list = NULL;
	if (list == NULL)
	{
		return -1;
	}
	C_list = (Tseqlist *)list;
	return (C_list->length);
}

int SeqList_Capacity(SeqList* list)
{
	Tseqlist *C_list = NULL;
	if (list == NULL)
	{
		return -1;
	}
	C_list = (Tseqlist *)list;
	return (C_list->capacity);
}

int SeqList_Insert(SeqList* list, SeqListNode* node1, int pos)
{
	Tseqlist *I_list ;
	if (list == NULL  ||  node1 == NULL  || pos  < 0 )
	{
		return -1;
	}
	I_list = (Tseqlist *)list;
	 //假设插入元素后，超出容量
	if (I_list->length > I_list->capacity)
	{
		printf("\n 输入的长度超过了容量 \n");
		return -1;
	}
	// 修正 假设插入的顺序在长度之外
	if (pos > I_list->length)
	{
		pos = I_list->length;
	}
	//正式的插入
	for (int i = I_list->length; i > pos; i--)
	{
		I_list->node[i] = I_list->node[i - 1];
	}
	I_list->node[pos] = (int ) node1;
	I_list->length++;

	return 0;
}

SeqListNode* SeqList_Get(SeqList* list, int pos)
{
	Tseqlist *I_list ;
	if (list == NULL || pos  < 0)
	{
		return NULL;
	}
	I_list = (Tseqlist *)list;


	return  (SeqListNode*)I_list->node[pos];
}

SeqListNode* SeqList_Delete(SeqList* list, int pos)
{
	Tseqlist *I_list ;
	if (list == NULL || list == NULL || pos  < 0)
	{
		return NULL;
	}
	I_list = (Tseqlist *)list;

	for (int i = pos; i < I_list->length; i++)
	{
		I_list->node[i] = I_list->node[i + 1];
	}
	I_list->length--;
	return NULL;
}