diff --git a/code/commodity1.txt b/code/commodity1.txt
deleted file mode 100644
index 8c3e0c272d4af3a56a2ddb3e1f682b6932186ceb..0000000000000000000000000000000000000000
--- a/code/commodity1.txt
+++ /dev/null
@@ -1,12 +0,0 @@
-001 apple 2020 7 14 wangyi qiang 100 5 6 2020 6 20 365 westroom
-002 orange 2020 6 14 tengxun qiang 80 4 5 2020 6 10 35 westroom
-003 banana 2020 7 5 sanxing qiang 100 9 10 2020 7 2 15 westroom
-004 pear 2020 6 30 xiaomi qiang 90 5 6 2020 6 20 90 westroom
-005 watermelon 2020 7 14 tengxun qiang 100 6 7 2020 6 15 90 eastroom
-006 peach 2020 7 12 huawei qiang 100 3 5 2020 7 10 5 eastroom
-007 pen 2020 7 14 zhongxing qiang 45 1 2 2020 5 11 365 eastroom
-008 camera 2020 7 14 sanxing gift 10 500 650 2020 7 10 365 west-1A
-009 computer 2020 6 10 huawei gift 30 3000 4000 2020 6 1 1000 west-1B
-010 audio 2020 7 14 xiaomi buy 80 100 150 2020 7 5 180 east-1A
-011 phone 2020 6 2 huawei buy 5 5000 6000 2020 6 1 700 east-1B
-012 MP3 2020 7 14 zhongxing buy 100 50 70 2020 6 20 365 east-1C 
\ No newline at end of file
diff --git a/code/purchase.cpp b/code/purchase.cpp
index 33b84fdd4f616c3824c44b0d58f3a47039f82582..451a76429efc1df70413b93fd55b5ece4472e788 100644
--- a/code/purchase.cpp
+++ b/code/purchase.cpp
@@ -1,30 +1,25 @@
-#include<stdio.h>
-#include<stdlib.h>
-#include<string.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
 #include "purchase.h"
 
-suppliers suppliers_head;
-suppliers suppliers_tail;
-commodity commodity_head;
-commodity commodity_tail;
-
-// 构造一个空的带头结点的进货双向链表
-Status InitList_purchase(purchase &head, purchase &tail)
+// ����һ���յĴ�ͷ���Ľ���˫������
+Status InitList_purchase(purchase& head, purchase& tail)
 {
 	head = (purchase)malloc(sizeof(purchase_information));
-	if(!head)
+	if (!head)
 		exit(OVERFLOW);
 	head->next = NULL;
 	tail = head;
 	return OK;
 }
 
-// 在进货链表尾部添加一个进货结点
-Status ListAdd_purchase(purchase &tail, char number[], char name[], char source[], char channel[], int quantity, double price, date time)
+// �ڽ�������β������һ���������
+Status ListAdd_purchase(purchase& tail, char number[], char name[], char source[], char channel[], int quantity, double price, date time)
 {
 	purchase p;
 	p = (purchase)malloc(sizeof(purchase_information));
-	if(!p)
+	if (!p)
 		exit(OVERFLOW);
 	strcpy(p->number, number);
 	strcpy(p->name, name);
@@ -42,45 +37,59 @@ Status ListAdd_purchase(purchase &tail, char number[], char name[], char source[
 	return OK;
 }
 
-// 在窗口中录出进货信息
-Status Printf_purchas(purchase &p)
+// �ڴ�����¼��������Ϣ
+Status Printf_purchas(purchase& p)
 {
 	printf("%s %s %s %s %d %.2lf %d %d %d\n",
 		p->number, p->name, p->source, p->channel, p->quantity, p->price, p->time.year, p->time.month, p->time.day);
 	return OK;
 }
 
-// 在文件中导出进货信息
-Status Fprintf_purchas(purchase &p)
+// ���ļ��е���������Ϣ
+Status Fprintf_purchas(FILE* fp, purchase& p)
 {
-	FILE *fp;
-	fp = fopen("suppliers2.txt", "a");
-	if(fp == NULL)
+	fprintf(fp, "%s %s %s %s %d %.2lf %d %d %d\n",
+		p->number, p->name, p->source, p->channel, p->quantity, p->price, p->time.year, p->time.month, p->time.day);
+	return OK;
+}
+
+// �ڴ����б����������������ζ�ÿ���ڵ���ú���visit()��һ��visit()ʧ�ܣ������ʧ��
+Status TraverseList_purchas(purchase& head, Status(*visit)(purchase& p))
+{
+	purchase p;
+	p = head->next;
+	if (!p)
 	{
-		printf("Can not open the file!");
-		exit(INFEASIBLE);
+		printf("���޽�����Ϣ��\n");
+		return OK;
+	}
+	while (p)
+	{
+		if (!visit(p))
+		{
+			printf("������Ϣ����ʧ�ܣ�\n");
+			return ERROR;
+		}
+		p = p->next;
 	}
-	fprintf(fp, "%s %s %s %s %d %lf %d %d %d\n",
-		p->number, p->name, p->source, p->channel, p->quantity, p->price, p->time.year, p->time.month, p->time.day);
-	fclose(fp);
 	return OK;
 }
 
-// 遍历进货链表，依次对每个节点调用函数visit()，一旦visit()失败，则操作失败
-Status TraverseList_purchas(purchase &head, Status(*visit)(purchase &p))
+// ���ļ��б����������������ζ�ÿ���ڵ���ú���visit()��һ��visit()ʧ�ܣ������ʧ��
+Status FtraverseList_purchas(FILE* fp, purchase& head, Status(*visit)(FILE* fp, purchase& p))
 {
 	purchase p;
 	p = head->next;
-	if(!p)
+	if (!p)
 	{
-		printf("暂无进货信息！\n");
+		fprintf(fp, "���޽�����Ϣ��\n");
 		return OK;
 	}
-	while(p)
+	while (p)
 	{
-		if(!visit(p))
+		if (!visit(fp, p))
 		{
-			printf("进货信息遍历失败！\n");
+			printf("������Ϣ����ʧ�ܣ�\n");
 			return ERROR;
 		}
 		p = p->next;
@@ -88,25 +97,25 @@ Status TraverseList_purchas(purchase &head, Status(*visit)(purchase &p))
 	return OK;
 }
 
-// 在窗口中录出进货链表
-Status DisplayList_purchas(purchase &head)
+// �ڴ�����¼����������
+Status DisplayList_purchas(purchase& head)
 {
 	TraverseList_purchas(head, Printf_purchas);
 	return OK;
 }
 
-// 在文件中导出进货链表
-Status FdisplayList_purchas(purchase &head)
+// ���ļ��е�����������
+Status FdisplayList_purchas(FILE* fp, purchase& head)
 {
-	TraverseList_purchas(head, Fprintf_purchas);
+	FtraverseList_purchas(fp, head, Fprintf_purchas);
 	return OK;
 }
 
-// 构造一个空的带头结点的供应商双向链表
-Status InitList_suppliers(suppliers &head, suppliers &tail)
+// ����һ���յĴ�ͷ���Ĺ�Ӧ��˫������
+Status InitList_suppliers(suppliers& head, suppliers& tail)
 {
 	head = (suppliers)malloc(sizeof(suppliers_information));
-	if(!head)
+	if (!head)
 		exit(OVERFLOW);
 	head->next = NULL;
 	tail = head;
@@ -114,13 +123,13 @@ Status InitList_suppliers(suppliers &head, suppliers &tail)
 	return OK;
 }
 
-// 查找供应商公司名称与关键字匹配的供应商结点
-Status ListHandle_suppliers(suppliers &head, suppliers &p, char corporate_name[])
+// ���ҹ�Ӧ�̹�˾������ؼ���ƥ��Ĺ�Ӧ�̽��
+Status ListHandle_suppliers(suppliers& head, suppliers& p, char corporate_name[])
 {
 	p = head->next;
-	while(p)
+	while (p)
 	{
-		if(strcmp(p->corporate_name, corporate_name) == 0)
+		if (strcmp(p->corporate_name, corporate_name) == 0)
 		{
 			break;
 		}
@@ -129,12 +138,12 @@ Status ListHandle_suppliers(suppliers &head, suppliers &p, char corporate_name[]
 	return OK;
 }
 
-// 在供应商链表尾部添加一个供应商结点
-Status ListAdd_suppliers(suppliers &tail, char corporate_name[], char main_business[], char main_products[], char brand[], char contact_person[], char telephone[])
+// �ڹ�Ӧ������β������һ����Ӧ�̽��
+Status ListAdd_suppliers(suppliers& tail, char corporate_name[], char main_business[], char main_products[], char brand[], char contact_person[], char telephone[])
 {
 	suppliers p;
 	p = (suppliers)malloc(sizeof(suppliers_information));
-	if(!p)
+	if (!p)
 		exit(OVERFLOW);
 	strcpy(p->corporate_name, corporate_name);
 	strcpy(p->main_business, main_business);
@@ -150,8 +159,8 @@ Status ListAdd_suppliers(suppliers &tail, char corporate_name[], char main_busin
 	return OK;
 }
 
-// 从窗口中录入供应商信息
-Status Add_suppliers(suppliers &head, suppliers &tail)
+// �Ӵ�����¼�빩Ӧ����Ϣ
+Status Add_suppliers(suppliers& head, suppliers& tail)
 {
 	suppliers p;
 	char corporate_name[MAX_SIZE];
@@ -160,15 +169,15 @@ Status Add_suppliers(suppliers &head, suppliers &tail)
 	char brand[MAX_SIZE];
 	char contact_person[MAX_SIZE];
 	char telephone[MAX_SIZE];
-	printf("请依次输入“公司名称、主营业务、主营产品、品牌、联络人、电话”，以空格作为结尾。\n");
-	while(1)
+	printf("���������롰��˾���ơ���Ӫҵ����Ӫ��Ʒ��Ʒ�ơ������ˡ��绰�����Կո���Ϊ��β��\n");
+	while (1)
 	{
 		scanf("%s %s %s %s %s %s", corporate_name, main_business, main_products, brand, contact_person, telephone);
 		ListHandle_suppliers(head, p, corporate_name);
-		if(p)
+		if (p)
 		{
-			printf("公司名称为 %s 的供应商已存在，无需添加。\n", p->corporate_name);
-			if(getchar() == ' ')
+			printf("��˾����Ϊ��%s���Ĺ�Ӧ���Ѵ��ڣ��������ӡ�\n", corporate_name);
+			if (getchar() == ' ')
 			{
 				break;
 			}
@@ -176,19 +185,19 @@ Status Add_suppliers(suppliers &head, suppliers &tail)
 				continue;
 		}
 		ListAdd_suppliers(tail, corporate_name, main_business, main_products, brand, contact_person, telephone);
-		if(getchar() == ' ')
+		if (getchar() == ' ')
 		{
 			break;
 		}
 	}
-	printf("供应商信息录入成功！\n");
+	printf("��Ӧ����Ϣ¼��ɹ���\n");
 	return OK;
 }
 
-// 从文件中导入供应商信息
-Status Fadd_suppliers(suppliers &head, suppliers &tail)
+// ���ļ��е��빩Ӧ����Ϣ
+Status Fadd_suppliers(suppliers& head, suppliers& tail)
 {
-	FILE *fp;
+	FILE* fp;
 	suppliers p;
 	char corporate_name[MAX_SIZE];
 	char main_business[MAX_SIZE];
@@ -197,19 +206,19 @@ Status Fadd_suppliers(suppliers &head, suppliers &tail)
 	char contact_person[MAX_SIZE];
 	char telephone[MAX_SIZE];
 	fp = fopen("suppliers1.txt", "r");
-	if(fp == NULL)
+	if (fp == NULL)
 	{
 		printf("Can not open the file!");
 		exit(INFEASIBLE);
 	}
-	while(1)
+	while (1)
 	{
 		fscanf(fp, "%s %s %s %s %s %s", corporate_name, main_business, main_products, brand, contact_person, telephone);
 		ListHandle_suppliers(head, p, corporate_name);
-		if(p)
+		if (p)
 		{
-			printf("公司名称为 %s 的供应商已存在，无需添加!\n", p->corporate_name);
-			if(fgetc(fp) == ' ')
+			printf("��˾����Ϊ��%s���Ĺ�Ӧ���Ѵ��ڣ���������!\n", corporate_name);
+			if (fgetc(fp) == ' ')
 			{
 				break;
 			}
@@ -217,41 +226,41 @@ Status Fadd_suppliers(suppliers &head, suppliers &tail)
 				continue;
 		}
 		ListAdd_suppliers(tail, corporate_name, main_business, main_products, brand, contact_person, telephone);
-		if(fgetc(fp) == ' ')
+		if (fgetc(fp) == ' ')
 		{
 			break;
 		}
 	}
 	fclose(fp);
-	printf("供应商信息导入成功！\n");
+	printf("��Ӧ����Ϣ����ɹ���\n");
 	return OK;
 }
 
-// 删除供应商公司名称与关键字匹配的供应商结点
-Status ListDelete_suppliers(suppliers &head)
+// ɾ����Ӧ�̹�˾������ؼ���ƥ��Ĺ�Ӧ�̽��
+Status ListDelete_suppliers(suppliers& head)
 {
 	suppliers p;
 	char corporate_name[MAX_SIZE];
-	printf("请输入要删除供应商的公司名称：\n");
+	printf("������Ҫɾ����Ӧ�̵Ĺ�˾���ƣ�\n");
 	scanf("%s", corporate_name);
 	ListHandle_suppliers(head, p, corporate_name);
-	if(!p)
+	if (!p)
 	{
-		printf("未找到公司名称为 %s 的供应商,无需删除！\n",corporate_name);
+		printf("δ�ҵ���˾����Ϊ��%s���Ĺ�Ӧ��,����ɾ����\n", corporate_name);
 		return ERROR;
 	}
-	if(p->next)
+	if (p->next)
 	{
 		p->next->pre = p->pre;
 	}
 	p->pre->next = p->next;
 	free(p);
-	printf("供应商信息删除成功！\n");
+	printf("��Ӧ����Ϣɾ���ɹ���\n");
 	return OK;
 }
 
-// 修改供应商公司名称与关键字匹配的供应商结点
-Status ListAlter_suppliers(suppliers &head, suppliers &tail)
+// �޸Ĺ�Ӧ�̹�˾������ؼ���ƥ��Ĺ�Ӧ�̽��
+Status ListAlter_suppliers(suppliers& head, suppliers& tail)
 {
 	suppliers p;
 	char corporate_name[MAX_SIZE];
@@ -262,35 +271,36 @@ Status ListAlter_suppliers(suppliers &head, suppliers &tail)
 	char telephone[MAX_SIZE];
 	char option;
 	bool flag = false;
-	printf("请输入要修改供应商的公司名称：\n");
+	printf("������Ҫ�޸Ĺ�Ӧ�̵Ĺ�˾���ƣ�\n");
 	scanf("%s", corporate_name);
 	getchar();
 	ListHandle_suppliers(head, p, corporate_name);
-	if(!p)
+	if (!p)
 	{
-		printf("未找到公司名称为 %s 的供应商，是否添加？（y/n）\n", corporate_name);
-		while(!flag)
+		printf("δ�ҵ���˾����Ϊ��%s���Ĺ�Ӧ�̣��Ƿ����ӣ���y/n��\n", corporate_name);
+		while (!flag)
 		{
 			scanf("%c", &option);
-			switch(option)
+			switch (option)
 			{
-				case 'y':
-					printf("请依次输入“主营业务、主营产品、品牌、联络人、电话”\n");
-					scanf("%s %s %s %s %s", main_business, main_products, brand, contact_person, telephone);
-					ListAdd_suppliers(tail, corporate_name, main_business, main_products, brand, contact_person, telephone);
-					printf("供应商信息添加成功！\n");
-					return OK;
-				case 'n':
-					flag = true;
-					break;
-				default:
-					printf("输入有误，请重新输入！\n");
-					break;
+			case 'y':
+				printf("���������롰��Ӫҵ����Ӫ��Ʒ��Ʒ�ơ������ˡ��绰��\n");
+				scanf("%s %s %s %s %s", main_business, main_products, brand, contact_person, telephone);
+				ListAdd_suppliers(tail, corporate_name, main_business, main_products, brand, contact_person, telephone);
+				printf("��Ӧ����Ϣ���ӳɹ���\n");
+				return OK;
+			case 'n':
+				printf("��Ӧ����Ϣ����ʧ�ܣ�\n");
+				flag = true;
+				break;
+			default:
+				printf("�����������������룡\n");
+				break;
 			}
 		}
 		return ERROR;
 	}
-	printf("请依次输入“公司名称、主营业务、主营产品、品牌、联络人、电话”\n");
+	printf("���������롰��˾���ơ���Ӫҵ����Ӫ��Ʒ��Ʒ�ơ������ˡ��绰��\n");
 	scanf("%s %s %s %s %s %s", corporate_name, main_business, main_products, brand, contact_person, telephone);
 	strcpy(p->corporate_name, corporate_name);
 	strcpy(p->main_business, main_business);
@@ -298,12 +308,12 @@ Status ListAlter_suppliers(suppliers &head, suppliers &tail)
 	strcpy(p->brand, brand);
 	strcpy(p->contact_person, contact_person);
 	strcpy(p->telephone, telephone);
-	printf("供应商信息修改成功！\n");
+	printf("��Ӧ����Ϣ�޸ijɹ���\n");
 	return OK;
 }
 
-// 查询供应商公司名称与关键字匹配的供应商结点供应商信息
-Status ListSearch_suppliers(suppliers &head, suppliers &tail)
+// ��ѯ��Ӧ�̹�˾������ؼ���ƥ��Ĺ�Ӧ�̽�㹩Ӧ����Ϣ
+Status ListSearch_suppliers(suppliers& head, suppliers& tail)
 {
 	suppliers p;
 	char corporate_name[MAX_SIZE];
@@ -314,30 +324,31 @@ Status ListSearch_suppliers(suppliers &head, suppliers &tail)
 	char telephone[MAX_SIZE];
 	char option;
 	bool flag = false;
-	printf("请输入要查询供应商的公司名称：\n");
+	printf("������Ҫ��ѯ��Ӧ�̵Ĺ�˾���ƣ�\n");
 	scanf("%s", corporate_name);
 	getchar();
 	ListHandle_suppliers(head, p, corporate_name);
-	if(!p)
+	if (!p)
 	{
-		printf("未找到公司名称为 %s 的供应商，是否添加？（y/n）\n", corporate_name);
-		while(!flag)
+		printf("δ�ҵ���˾����Ϊ��%s���Ĺ�Ӧ�̣��Ƿ����ӣ���y/n��\n", corporate_name);
+		while (!flag)
 		{
 			scanf("%c", &option);
-			switch(option)
+			switch (option)
 			{
-				case 'y':
-					printf("请依次输入“主营业务、主营产品、品牌、联络人、电话”\n");
-					scanf("%s %s %s %s %s", main_business, main_products, brand, contact_person, telephone);
-					ListAdd_suppliers(tail, corporate_name, main_business, main_products, brand, contact_person, telephone);
-					printf("供应商信息添加成功！\n");
-					return OK;
-				case 'n':
-					flag = true;
-					break;
-				default:
-					printf("输入有误，请重新输入！\n");
-					break;
+			case 'y':
+				printf("���������롰��Ӫҵ����Ӫ��Ʒ��Ʒ�ơ������ˡ��绰��\n");
+				scanf("%s %s %s %s %s", main_business, main_products, brand, contact_person, telephone);
+				ListAdd_suppliers(tail, corporate_name, main_business, main_products, brand, contact_person, telephone);
+				printf("��Ӧ����Ϣ���ӳɹ���\n");
+				return OK;
+			case 'n':
+				printf("��Ӧ����Ϣ����ʧ�ܣ�\n");
+				flag = true;
+				break;
+			default:
+				printf("�����������������룡\n");
+				break;
 			}
 		}
 		return ERROR;
@@ -346,92 +357,167 @@ Status ListSearch_suppliers(suppliers &head, suppliers &tail)
 	return OK;
 }
 
-// 在窗口中录出供应商信息
-Status Printf_suppliers(suppliers &p)
+// �ڴ�����¼����Ӧ����Ϣ
+Status Printf_suppliers(suppliers& p)
 {
 	printf("%s %s %s %s %s %s\n", p->corporate_name, p->main_business, p->main_products, p->brand, p->contact_person, p->telephone);
 	DisplayList_purchas(p->purchase_head);
 	return OK;
 }
 
-// 在文件中导出供应商信息
-Status Fprintf_suppliers(suppliers &p)
+// ���ļ��е�����Ӧ����Ϣ
+Status Fprintf_suppliers(FILE* fp, suppliers& p)
 {
-	FILE *fp;
-	fp = fopen("suppliers2.txt", "a");
-	if(fp == NULL)
+	fprintf(fp, "%s %s %s %s %s %s\n", p->corporate_name, p->main_business, p->main_products, p->brand, p->contact_person, p->telephone);
+	FdisplayList_purchas(fp, p->purchase_head);
+	return OK;
+}
+
+// �ڴ����б�����Ӧ�����������ζ�ÿ���ڵ���ú���visit()��һ��visit()ʧ�ܣ������ʧ��
+Status TraverseList_suppliers(suppliers& head, Status(*visit)(suppliers& p))
+{
+	suppliers p;
+	p = head->next;
+	if (!p)
 	{
-		printf("Can not open the file!");
-		exit(INFEASIBLE);
+		printf("���޹�Ӧ����Ϣ��\n");
+		return OK;
+	}
+	while (p)
+	{
+		if (!visit(p))
+		{
+			printf("��Ӧ����Ϣ����ʧ�ܣ�\n");
+			return ERROR;
+		}
+		p = p->next;
 	}
-	fprintf(fp, "%s %s %s %s %s %s\n", p->corporate_name, p->main_business, p->main_products, p->brand, p->contact_person, p->telephone);
-	fclose(fp);
-	FdisplayList_purchas(p->purchase_head);
 	return OK;
 }
 
-// 遍历供应商链表，依次对每个节点调用函数visit()，一旦visit()失败，则操作失败
-Status TraverseList_suppliers(suppliers &head, Status(*visit)(suppliers &p))
+// ���ļ��б�����Ӧ�����������ζ�ÿ���ڵ���ú���visit()��һ��visit()ʧ�ܣ������ʧ��
+Status FtraverseList_suppliers1(suppliers& head, Status(*visit)(FILE* fp, suppliers& p))
 {
+	FILE* fp;
 	suppliers p;
+	fp = fopen("suppliers2.txt", "a");
+	if (fp == NULL)
+	{
+		printf("Can not open the file!");
+		exit(INFEASIBLE);
+	}
 	p = head->next;
-	if(!p)
+	if (!p)
 	{
-		printf("暂无供应商信息！\n");
+		fprintf(fp, "���޹�Ӧ����Ϣ��\n");
 		return OK;
 	}
-	while(p)
+	while (p)
 	{
-		if(!visit(p))
+		if (!visit(fp, p))
 		{
-			printf("供应商信息遍历失败！\n");
+			printf("��Ӧ����Ϣ����ʧ�ܣ�\n");
 			return ERROR;
 		}
 		p = p->next;
 	}
+	fclose(fp);
 	return OK;
 }
 
-// 在窗口中录出供应商链表
-Status DisplayList_suppliers(suppliers &head)
+// �ڴ�����¼����Ӧ������
+Status DisplayList_suppliers(suppliers& head)
 {
 	TraverseList_suppliers(head, Printf_suppliers);
-	printf("供应商信息录出成功！\n");
+	printf("��Ӧ����Ϣ¼���ɹ���\n");
+	return OK;
+}
+
+// ���ļ��е�����Ӧ������
+Status FdisplayList_suppliers(suppliers& head)
+{
+	FtraverseList_suppliers1(head, Fprintf_suppliers);
+	printf("��Ӧ����Ϣ�����ɹ���\n");
 	return OK;
 }
 
-// 在文件中导出供应商链表
-Status FdisplayList_suppliers(suppliers &head)
+// ���湩Ӧ����Ϣ
+Status Save_suppliers(FILE* fp, suppliers& p)
 {
-	TraverseList_suppliers(head, Fprintf_suppliers);
-	printf("供应商信息导出成功！\n");
+	fprintf(fp, "%s %s %s %s %s %s", p->corporate_name, p->main_business, p->main_products, p->brand, p->contact_person, p->telephone);
+	if (p->next)
+	{
+		fprintf(fp, "\n");
+	}
+	else
+	{
+		fprintf(fp, " ");
+	}
 	return OK;
 }
 
-// 构造一个空的带头结点的商品向链表
-Status InitList_commodity(commodity &head, commodity &tail)
+// ���ļ�������Ӧ�����������ζ�ÿ���ڵ���ú���visit()��һ��visit()ʧ�ܣ������ʧ��
+Status FtraverseList_suppliers2(suppliers& head, Status(*visit)(FILE* fp, suppliers& p))
+{
+	FILE* fp;
+	suppliers p;
+	fp = fopen("suppliers1.txt", "w");
+	if (fp == NULL)
+	{
+		printf("Can not open the file!");
+		exit(INFEASIBLE);
+	}
+	p = head->next;
+	if (!p)
+	{
+		fprintf(fp, "���޹�Ӧ����Ϣ��\n");
+		return OK;
+	}
+	while (p)
+	{
+		if (!visit(fp, p))
+		{
+			printf("��Ӧ����Ϣ����ʧ�ܣ�\n");
+			return ERROR;
+		}
+		p = p->next;
+	}
+	fclose(fp);
+	printf("��Ӧ����Ϣ����ɹ���\n");
+	return OK;
+}
+
+// ���湩Ӧ������
+Status Keep_suppliers(suppliers& head)
+{
+	FtraverseList_suppliers2(head, Save_suppliers);
+	return OK;
+}
+
+// ����һ���յĴ�ͷ������Ʒ������
+Status InitList_commodity(commodity& head, commodity& tail)
 {
 	head = (commodity)malloc(sizeof(goods));
-	if(!head)
+	if (!head)
 		exit(OVERFLOW);
 	head->next = NULL;
 	tail = head;
 	return OK;
 }
 
-// 在商品链表尾部添加一个商品结点
-Status ListAdd_commodity(commodity &tail, char id_Number[], char goods_Name[], char place[],
-	double buy_Price, double sell_Price, int remain_Number, int quality_Date, date purchase_Date, date produce_Date)
+// ����Ʒ����β������һ����Ʒ���
+Status ListAdd_commodity(commodity& tail, char id_Number[], char goods_Name[], char place[],
+	double buy_Prise, double sell_Prise, int remain_Number, int quality_Date, date purchase_Date, date produce_Date)
 {
 	commodity p;
 	p = (commodity)malloc(sizeof(goods));
-	if(!p)
+	if (!p)
 		exit(OVERFLOW);
 	strcpy(p->id_Number, id_Number);
 	strcpy(p->goods_Name, goods_Name);
 	strcpy(p->place, place);
-	p->buy_Price = buy_Price;
-	p->sell_Price = sell_Price;
+	p->buy_Prise = buy_Prise;
+	p->sell_Prise = sell_Prise;
 	p->remain_Number = remain_Number;
 	p->quality_Date = quality_Date;
 	p->purchase_Date.year = purchase_Date.year;
@@ -447,13 +533,13 @@ Status ListAdd_commodity(commodity &tail, char id_Number[], char goods_Name[], c
 	return OK;
 }
 
-// 查找商品编号与关键字匹配的供应商结点
-Status ListHandle_commodity(commodity &head, commodity &p, char id_Number[])
+// ������Ʒ�����ؼ���ƥ��Ĺ�Ӧ�̽��
+Status ListHandle_commodity(commodity& head, commodity& p, char id_Number[])
 {
 	p = head->next;
-	while(p)
+	while (p)
 	{
-		if(strcmp(p->id_Number, id_Number) == 0)
+		if (strcmp(p->id_Number, id_Number) == 0)
 		{
 			break;
 		}
@@ -462,8 +548,8 @@ Status ListHandle_commodity(commodity &head, commodity &p, char id_Number[])
 	return OK;
 }
 
-// 从窗口中录入商品信息
-Status Add_commodity(commodity &head, commodity &tail, suppliers &suppliers_head, suppliers &suppliers_tail)
+// �Ӵ�����¼����Ʒ��Ϣ
+Status Add_commodity(commodity& head, commodity& tail, suppliers& suppliers_head, suppliers& suppliers_tail)
 {
 	commodity p;
 	suppliers suppliers_p;
@@ -477,63 +563,63 @@ Status Add_commodity(commodity &head, commodity &tail, suppliers &suppliers_head
 	char brand[MAX_SIZE];
 	char contact_person[MAX_SIZE];
 	char telephone[MAX_SIZE];
-	double buy_Price;
-	double sell_Price;
+	double buy_Prise;
+	double sell_Prise;
 	int quantity;
 	int quality_Date;
 	date purchase_Date;
 	date produce_Date;
 	bool flag = false;
-	printf("请依次输入“商品编号、商品名称、进货日期、进货来源（供应商）、进货渠道、进货数量、商品进价、商品售价、生产日期、保质期、库存位置”，以空格作为结尾。\n");
-	while(1)
+	printf("���������롰��Ʒ��š���Ʒ���ơ��������ڡ�������Դ����Ӧ�̣�������������������������Ʒ���ۡ���Ʒ�ۼۡ��������ڡ������ڡ����λ�á����Կո���Ϊ��β��\n");
+	while (1)
 	{
 		scanf("%s %s %d %d %d %s %s %d %lf %lf %d %d %d %d %s",
 			id_Number, goods_Name, &purchase_Date.year, &purchase_Date.month, &purchase_Date.day, source, channel, &quantity,
-			&buy_Price, &sell_Price, &produce_Date.year, &produce_Date.month, &produce_Date.day, &quality_Date, place);
-		if(getchar() == ' ')
+			&buy_Prise, &sell_Prise, &produce_Date.year, &produce_Date.month, &produce_Date.day, &quality_Date, place);
+		if (getchar() == ' ')
 		{
 			flag = true;
 		}
 		ListHandle_commodity(head, p, id_Number);
-		if(p)
+		if (p)
 		{
-			if(strcmp(p->goods_Name, goods_Name) != 0 || strcmp(p->place, place) != 0
-				|| p->buy_Price != buy_Price || p->sell_Price != sell_Price || p->quality_Date != quality_Date
+			if (strcmp(p->goods_Name, goods_Name) != 0 || strcmp(p->place, place) != 0
+				|| p->buy_Prise != buy_Prise || p->sell_Prise != sell_Prise || p->quality_Date != quality_Date
 				|| p->purchase_Date.year != purchase_Date.year || p->purchase_Date.month != purchase_Date.month || p->purchase_Date.day != purchase_Date.day
 				|| p->produce_Date.year != produce_Date.year || p->produce_Date.month != produce_Date.month || p->produce_Date.day != produce_Date.day)
 			{
-				printf("编号 %s 已存在商品信息\n", id_Number);
+				printf("��š�%s���Ѵ�����Ʒ��Ϣ\n", id_Number);
 				return ERROR;
 			}
 			p->remain_Number += quantity;
 		}
 		else
-			ListAdd_commodity(tail, id_Number, goods_Name, place, buy_Price, sell_Price, quantity, quality_Date, purchase_Date, produce_Date);
+			ListAdd_commodity(tail, id_Number, goods_Name, place, buy_Prise, sell_Prise, quantity, quality_Date, purchase_Date, produce_Date);
 		ListHandle_suppliers(suppliers_head, suppliers_p, source);
-		if(!suppliers_p)
+		if (!suppliers_p)
 		{
-			printf("未找到公司名称为 %s 的供应商，请先添加!\n", source);
-			printf("请依次输入“主营业务、主营产品、品牌、联络人、电话”\n");
+			printf("δ�ҵ���˾����Ϊ��%s���Ĺ�Ӧ�̣���������!\n", source);
+			printf("���������롰��Ӫҵ����Ӫ��Ʒ��Ʒ�ơ������ˡ��绰��\n");
 			scanf("%s %s %s %s %s", main_business, main_products, brand, contact_person, telephone);
 			ListAdd_suppliers(suppliers_tail, source, main_business, main_products, brand, contact_person, telephone);
-			printf("供应商信息添加成功！\n");
+			printf("��Ӧ����Ϣ���ӳɹ���\n");
 			ListHandle_suppliers(suppliers_head, suppliers_p, source);
 		}
-		ListAdd_purchase(suppliers_p->purchase_tail, id_Number, goods_Name, source, channel, quantity, buy_Price, purchase_Date);
-		if(flag == true)
+		ListAdd_purchase(suppliers_p->purchase_tail, id_Number, goods_Name, source, channel, quantity, buy_Prise, purchase_Date);
+		if (flag == true)
 		{
 			break;
 		}
 	}
-	printf("商品信息录入成功！\n");
-	printf("进货信息录入成功！\n");
+	printf("��Ʒ��Ϣ¼��ɹ���\n");
+	printf("������Ϣ¼��ɹ���\n");
 	return OK;
 }
 
-// 从文件中导入商品信息
-Status Fadd_commodity(commodity &head, commodity &tail, suppliers &suppliers_head, suppliers &suppliers_tail)
+// ���ļ��е�����Ʒ��Ϣ
+Status Fadd_commodity(commodity& head, commodity& tail, suppliers& suppliers_head, suppliers& suppliers_tail)
 {
-	FILE *fp;
+	FILE* fp;
 	commodity p;
 	suppliers suppliers_p;
 	char id_Number[20];
@@ -546,234 +632,235 @@ Status Fadd_commodity(commodity &head, commodity &tail, suppliers &suppliers_hea
 	char brand[MAX_SIZE];
 	char contact_person[MAX_SIZE];
 	char telephone[MAX_SIZE];
-	double buy_Price;
-	double sell_Price;
+	double buy_Prise;
+	double sell_Prise;
 	int quantity;
 	int quality_Date;
 	date purchase_Date;
 	date produce_Date;
 	bool flag = false;
 	fp = fopen("commodity1.txt", "r");
-	if(fp == NULL)
+	if (fp == NULL)
 	{
 		printf("Can not open the file!");
 		exit(INFEASIBLE);
 	}
-	while(1)
+	while (1)
 	{
 		fscanf(fp, "%s %s %d %d %d %s %s %d %lf %lf %d %d %d %d %s",
 			id_Number, goods_Name, &purchase_Date.year, &purchase_Date.month, &purchase_Date.day, source, channel, &quantity,
-			&buy_Price, &sell_Price, &produce_Date.year, &produce_Date.month, &produce_Date.day, &quality_Date, place);
-		if(fgetc(fp) == ' ')
+			&buy_Prise, &sell_Prise, &produce_Date.year, &produce_Date.month, &produce_Date.day, &quality_Date, place);
+		if (fgetc(fp) == ' ')
 		{
 			flag = true;
 		}
 		ListHandle_commodity(head, p, id_Number);
-		if(p)
+		if (p)
 		{
-			if(strcmp(p->goods_Name, goods_Name) != 0 || strcmp(p->place, place) != 0
-				|| p->buy_Price != buy_Price || p->sell_Price != sell_Price || p->quality_Date != quality_Date
+			if (strcmp(p->goods_Name, goods_Name) != 0 || strcmp(p->place, place) != 0
+				|| p->buy_Prise != buy_Prise || p->sell_Prise != sell_Prise || p->quality_Date != quality_Date
 				|| p->purchase_Date.year != purchase_Date.year || p->purchase_Date.month != purchase_Date.month || p->purchase_Date.day != purchase_Date.day
 				|| p->produce_Date.year != produce_Date.year || p->produce_Date.month != produce_Date.month || p->produce_Date.day != produce_Date.day)
 			{
-				printf("编号 %s 已存在商品信息\n", id_Number);
+				printf("��š�%s���Ѵ�����Ʒ��Ϣ\n", id_Number);
 				return ERROR;
 			}
 			p->remain_Number += quantity;
 		}
 		else
-			ListAdd_commodity(tail, id_Number, goods_Name, place, buy_Price, sell_Price, quantity, quality_Date, purchase_Date, produce_Date);
+			ListAdd_commodity(tail, id_Number, goods_Name, place, buy_Prise, sell_Prise, quantity, quality_Date, purchase_Date, produce_Date);
 		ListHandle_suppliers(suppliers_head, suppliers_p, source);
-		if(!suppliers_p)
+		if (!suppliers_p)
 		{
-			printf("未找到公司名称为 %s 的供应商，请先添加!\n", source);
-			printf("请依次输入“主营业务、主营产品、品牌、联络人、电话”\n");
+			printf("δ�ҵ���˾����Ϊ��%s���Ĺ�Ӧ�̣���������!\n", source);
+			printf("���������롰��Ӫҵ����Ӫ��Ʒ��Ʒ�ơ������ˡ��绰��\n");
 			scanf("%s %s %s %s %s", main_business, main_products, brand, contact_person, telephone);
 			ListAdd_suppliers(suppliers_tail, source, main_business, main_products, brand, contact_person, telephone);
-			printf("供应商信息添加成功！\n");
+			printf("��Ӧ����Ϣ���ӳɹ���\n");
 			ListHandle_suppliers(suppliers_head, suppliers_p, source);
 		}
-		ListAdd_purchase(suppliers_p->purchase_tail, id_Number, goods_Name, source, channel, quantity, buy_Price, purchase_Date);
-		if(flag == true)
+		ListAdd_purchase(suppliers_p->purchase_tail, id_Number, goods_Name, source, channel, quantity, buy_Prise, purchase_Date);
+		if (flag == true)
 		{
 			break;
 		}
 	}
 	fclose(fp);
-	printf("商品信息导入成功！\n");
-	printf("进货信息导入成功！\n");
+	printf("��Ʒ��Ϣ����ɹ���\n");
+	printf("������Ϣ����ɹ���\n");
 	return OK;
 }
 
-// 添加供应商信息界面
-Status Interface_add_suppliers(commodity &commodity_head, commodity &commodity_tail,
-	suppliers &suppliers_head, suppliers &suppliers_tail)
+// ���ӹ�Ӧ����Ϣ����
+Status Interface_add_suppliers(commodity& commodity_head, commodity& commodity_tail,
+	suppliers& suppliers_head, suppliers& suppliers_tail)
 {
 	int option;
 	bool flag = false;
 	system("cls");
-	printf("添加供应商信息界面\n1.从窗口中录入供应商信息\n2.从文件中导入供应商信息\n3.返回上一级界面\n4.返回主界面\n");
-	while(!flag)
+	printf("���ӹ�Ӧ����Ϣ����\n1.�Ӵ�����¼�빩Ӧ����Ϣ\n2.���ļ��е��빩Ӧ����Ϣ\n3.������һ������\n4.����������\n");
+	while (!flag)
 	{
 		scanf("%d", &option);
-		switch(option)
+		switch (option)
 		{
-			case 1:
-				Add_suppliers(suppliers_head, suppliers_tail);
-				break;
-			case 2:
-				Fadd_suppliers(suppliers_head, suppliers_tail);
-				break;
-			case 3:
-				Interface_suppliers_management(commodity_head, commodity_tail, suppliers_head, suppliers_tail);
-				flag = true;
-				break;
-			case 4:
-				Main_interface(commodity_head, commodity_tail, suppliers_head, suppliers_tail);
-				flag = true;
-				break;
-			default:
-				printf("输入有误，请重新输入！\n");
-				break;
+		case 1:
+			Add_suppliers(suppliers_head, suppliers_tail);
+			break;
+		case 2:
+			Fadd_suppliers(suppliers_head, suppliers_tail);
+			break;
+		case 3:
+			Interface_suppliers_management(commodity_head, commodity_tail, suppliers_head, suppliers_tail);
+			flag = true;
+			break;
+		case 4:
+			Main_interface(commodity_head, commodity_tail, suppliers_head, suppliers_tail);
+			flag = true;
+			break;
+		default:
+			printf("�����������������룡\n");
+			break;
 		}
 	}
 	return OK;
 }
 
-// 打印供应商信息界面
-Status Interface_print_suppliers(commodity &commodity_head, commodity &commodity_tail,
-	suppliers &suppliers_head, suppliers &suppliers_tail)
+// ��ӡ��Ӧ����Ϣ����
+Status Interface_print_suppliers(commodity& commodity_head, commodity& commodity_tail,
+	suppliers& suppliers_head, suppliers& suppliers_tail)
 {
 	int option;
 	bool flag = false;
 	system("cls");
-	printf("打印供应商信息界面\n1.从窗口中录出供应商信息\n2.从文件中导出供应商信息\n3.返回上一级界面\n4.返回主界面\n");
-	while(!flag)
+	printf("��ӡ��Ӧ����Ϣ����\n1.�ڴ�����¼����Ӧ����Ϣ\n2.���ļ��е�����Ӧ����Ϣ\n3.������һ������\n4.����������\n");
+	while (!flag)
 	{
 		scanf("%d", &option);
-		switch(option)
+		switch (option)
 		{
-			case 1:
-				DisplayList_suppliers(suppliers_head);
-				break;
-			case 2:
-				FdisplayList_suppliers(suppliers_head);
-				break;
-			case 3:
-				Interface_suppliers_management(commodity_head, commodity_tail, suppliers_head, suppliers_tail);
-				flag = true;
-				break;
-			case 4:
-				Main_interface(commodity_head, commodity_tail, suppliers_head, suppliers_tail);
-				flag = true;
-				break;
-			default:
-				printf("输入有误，请重新输入！\n");
-				break;
+		case 1:
+			DisplayList_suppliers(suppliers_head);
+			break;
+		case 2:
+			FdisplayList_suppliers(suppliers_head);
+			break;
+		case 3:
+			Interface_suppliers_management(commodity_head, commodity_tail, suppliers_head, suppliers_tail);
+			flag = true;
+			break;
+		case 4:
+			Main_interface(commodity_head, commodity_tail, suppliers_head, suppliers_tail);
+			flag = true;
+			break;
+		default:
+			printf("�����������������룡\n");
+			break;
 		}
 	}
 	return OK;
 }
 
-// 供应商信息管理界面
-Status Interface_suppliers_management(commodity &commodity_head, commodity &commodity_tail,
-	suppliers &suppliers_head, suppliers &suppliers_tail)
+// ��Ӧ����Ϣ��������
+Status Interface_suppliers_management(commodity& commodity_head, commodity& commodity_tail,
+	suppliers& suppliers_head, suppliers& suppliers_tail)
 {
 	int option;
 	bool flag = false;
 	system("cls");
-	printf("供应商信息管理界面\n1.添加供应商信息\n2.删除供应商信息\n3.修改供应商信息\n4.查询供应商信息\n5.打印供应商信息\n6.返回主界面\n");
-	while(!flag)
+	printf("��Ӧ����Ϣ��������\n1.���ӹ�Ӧ����Ϣ\n2.ɾ����Ӧ����Ϣ\n3.�޸Ĺ�Ӧ����Ϣ\n4.��ѯ��Ӧ����Ϣ\n5.��ӡ��Ӧ����Ϣ\n6.����������\n");
+	while (!flag)
 	{
 		scanf("%d", &option);
-		switch(option)
+		switch (option)
 		{
-			case 1:
-				Interface_add_suppliers(commodity_head, commodity_tail, suppliers_head, suppliers_tail);
-				flag = true;
-				break;
-			case 2:
-				ListDelete_suppliers(suppliers_head);
-				break;
-			case 3:
-				ListAlter_suppliers(suppliers_head, suppliers_tail);
-				break;
-			case 4:
-				ListSearch_suppliers(suppliers_head, suppliers_tail);
-				break;
-			case 5:
-				Interface_print_suppliers(commodity_head, commodity_tail, suppliers_head, suppliers_tail);
-				flag = true;
-				break;
-			case 6:
-				Main_interface(commodity_head, commodity_tail, suppliers_head, suppliers_tail);
-				flag = true;
-				break;
-			default:
-				printf("输入有误，请重新输入！\n");
-				break;
+		case 1:
+			Interface_add_suppliers(commodity_head, commodity_tail, suppliers_head, suppliers_tail);
+			flag = true;
+			break;
+		case 2:
+			ListDelete_suppliers(suppliers_head);
+			break;
+		case 3:
+			ListAlter_suppliers(suppliers_head, suppliers_tail);
+			break;
+		case 4:
+			ListSearch_suppliers(suppliers_head, suppliers_tail);
+			break;
+		case 5:
+			Interface_print_suppliers(commodity_head, commodity_tail, suppliers_head, suppliers_tail);
+			flag = true;
+			break;
+		case 6:
+			Main_interface(commodity_head, commodity_tail, suppliers_head, suppliers_tail);
+			flag = true;
+			break;
+		default:
+			printf("�����������������룡\n");
+			break;
 		}
 	}
 	return OK;
 }
 
-// 进货管理界面
-Status Interface_purchase_management(commodity &commodity_head, commodity &commodity_tail,
-	suppliers &suppliers_head, suppliers &suppliers_tail)
+// ������������
+Status Interface_purchase_management(commodity& commodity_head, commodity& commodity_tail,
+	suppliers& suppliers_head, suppliers& suppliers_tail)
 {
 	int option;
 	bool flag = false;
 	system("cls");
-	printf("进货管理界面\n1.从窗口中录入商品信息和进货信息\n2.从文件中导入商品信息和进货信息\n3.返回主界面\n");
-	while(!flag)
+	printf("������������\n1.�Ӵ�����¼����Ʒ��Ϣ�ͽ�����Ϣ\n2.���ļ��е�����Ʒ��Ϣ�ͽ�����Ϣ\n3.����������\n");
+	while (!flag)
 	{
 		scanf("%d", &option);
-		switch(option)
+		switch (option)
 		{
-			case 1:
-				Add_commodity(commodity_head, commodity_tail, suppliers_head, suppliers_tail);
-				break;
-			case 2:
-				Fadd_commodity(commodity_head, commodity_tail, suppliers_head, suppliers_tail);
-				break;
-			case 3:
-				Main_interface(commodity_head, commodity_tail, suppliers_head, suppliers_tail);
-				flag = true;
-				break;
-			default:
-				printf("输入有误，请重新输入！\n");
-				break;
+		case 1:
+			Add_commodity(commodity_head, commodity_tail, suppliers_head, suppliers_tail);
+			break;
+		case 2:
+			Fadd_commodity(commodity_head, commodity_tail, suppliers_head, suppliers_tail);
+			break;
+		case 3:
+			Main_interface(commodity_head, commodity_tail, suppliers_head, suppliers_tail);
+			flag = true;
+			break;
+		default:
+			printf("�����������������룡\n");
+			break;
 		}
 	}
 	return OK;
 }
 
-// 主界面
-Status Main_interface(commodity &commodity_head, commodity &commodity_tail,
-	suppliers &suppliers_head, suppliers &suppliers_tail)
+// ������
+Status Main_interface(commodity& commodity_head, commodity& commodity_tail,
+	suppliers& suppliers_head, suppliers& suppliers_tail)
 {
 	int option;
 	bool flag = false;
 	system("cls");
-	printf("主界面\n1.供应商信息管理\n2.进货管理\n3.退出主界面\n");
-	while(!flag)
+	printf("������\n1.��Ӧ����Ϣ����\n2.��������\n3.�˳�������\n");
+	while (!flag)
 	{
 		scanf("%d", &option);
-		switch(option)
+		switch (option)
 		{
-			case 1:
-				Interface_suppliers_management(commodity_head, commodity_tail, suppliers_head, suppliers_tail);
-				flag = true;
-				break;
-			case 2:
-				Interface_purchase_management(commodity_head, commodity_tail, suppliers_head, suppliers_tail);
-				flag = true;
-				break;
-			case 3:
-				return OK;
-			default:
-				printf("输入有误，请重新输入！\n");
-				break;
+		case 1:
+			Interface_suppliers_management(commodity_head, commodity_tail, suppliers_head, suppliers_tail);
+			flag = true;
+			break;
+		case 2:
+			Interface_purchase_management(commodity_head, commodity_tail, suppliers_head, suppliers_tail);
+			flag = true;
+			break;
+		case 3:
+			Keep_suppliers(suppliers_head);
+			return OK;
+		default:
+			printf("�����������������룡\n");
+			break;
 		}
 	}
 	return OK;
diff --git a/code/purchase.h b/code/purchase.h
index 9dd0e32a1e71ee6f0924d9f762924223758659b3..0c619965810d779233e485a314568f7c8406da55 100644
--- a/code/purchase.h
+++ b/code/purchase.h
@@ -1,7 +1,8 @@
-#ifndef __PURCHASE_H__
-#define __PURCHASE_H__
+#include <stdio.h>
 
 // ��׼ͷ�ļ��ṹ��
+#ifndef __PURCHASE_H__
+#define __PURCHASE_H__
 
 // �����������
 #define MAX_SIZE 30
@@ -18,12 +19,14 @@
 typedef int Status;
 
 // ʱ��ṹ�壬�洢�ꡢ�¡�����Ϣ
-#include "date.h"
-
-// ��Ʒ����棩�ṹ��
-#include "sell.h"
+struct date
+{
+	int year;	// ��
+	int month;	// ��
+	int day;	// ��
+};
 
-/* ˫�������ĵ����ڵ㣬������Ӧ�Ľṹ���Ա��ͬʱ�޸Ĺ��캯������purchase.cpp�У� */
+/* ˫�������ĵ����ڵ㣬������Ӧ�Ľṹ���Ա */
 
 // ������Ϣ�������Գ��еIJɹ�����й������洢������Щ������������������ʱ�䡢��������Դ/�����������۸����Ϣ
 typedef struct purchase_information
@@ -35,12 +38,12 @@ typedef struct purchase_information
 	int quantity;	// ��������
 	double price;	// �����۸�
 	date time;	// ����ʱ��
-	purchase_information *pre;	// ��һ������ָ��
-	purchase_information *next;	// ��һ������ָ��
+	purchase_information* pre;	// ��һ������ָ��
+	purchase_information* next;	// ��һ������ָ��
 }*purchase;
 
 // ��Ӧ����Ϣ�������洢��˾���ơ���Ӫҵ��/��Ʒ��Ʒ�ơ������ˡ��绰����Ϣ
-struct suppliers_information
+typedef struct suppliers_information
 {
 	char corporate_name[MAX_SIZE];	// ��˾����
 	char main_business[MAX_SIZE];	// ��Ӫҵ��
@@ -50,110 +53,130 @@ struct suppliers_information
 	char telephone[MAX_SIZE];	// �绰
 	purchase purchase_head;	// ������Ϣͷ�ڵ�
 	purchase purchase_tail;	// ������Ϣβ���
-	suppliers_information *pre;	// ��һ����Ӧ��ָ��
-	suppliers_information *next;	// ��һ����Ӧ��ָ��
-};
-typedef struct suppliers_information *suppliers;
+	suppliers_information* pre;	// ��һ����Ӧ��ָ��
+	suppliers_information* next;	// ��һ����Ӧ��ָ��
+}*suppliers;
 
-extern suppliers suppliers_head;
-extern suppliers suppliers_tail;
-extern commodity commodity_head;
-extern commodity commodity_tail;
+typedef struct goods
+{
+	char id_Number[20]; //	��Ʒ���
+	char goods_Name[20]; //	��Ʒ����
+	char place[20]; //	����
+	double buy_Prise; //	��Ʒ����
+	double sell_Prise; //	��Ʒ�ۼ�
+	int remain_Number; //	��Ʒ����
+	int quality_Date; //	������
+	date purchase_Date; //	��������
+	date produce_Date; //	��������
+	goods* pre; //	��һ����Ʒָ��
+	goods* next; //	��һ����Ʒָ��
+}*commodity;
 
 // ����һ���յĴ�ͷ���Ľ���˫������
-Status InitList_purchase(purchase &head, purchase &tail);
+Status InitList_purchase(purchase& head, purchase& tail);
 
 // �ڽ�������β������һ���������
-Status ListAdd_purchase(purchase &tail, char number[], char name[], char source[], char channel[], int quantity, double price, date time);
+Status ListAdd_purchase(purchase& tail, char number[], char name[], char source[], char channel[], int quantity, double price, date time);
 
 // �ڴ�����¼��������Ϣ
-Status Printf_purchas(purchase &p);
+Status Printf_purchas(purchase& p);
 
 // ���ļ��е���������Ϣ
-Status Fprintf_purchas(purchase &p);
+Status Fprintf_purchas(FILE* fp, purchase& p);
+
+// �ڴ����б����������������ζ�ÿ���ڵ���ú���visit()��һ��visit()ʧ�ܣ������ʧ��
+Status TraverseList_purchas(purchase& head, Status(*visit)(purchase& p));
 
-// �����������������ζ�ÿ���ڵ���ú���visit()��һ��visit()ʧ�ܣ������ʧ��
-Status TraverseList_purchas(purchase &head, Status(*visit)(purchase &p));
+// ���ļ��б����������������ζ�ÿ���ڵ���ú���visit()��һ��visit()ʧ�ܣ������ʧ��
+Status FtraverseList_purchas(FILE* fp, purchase& head, Status(*visit)(FILE* fp, purchase& p));
 
 // �ڴ�����¼����������
-Status DisplayList_purchas(purchase &head);
+Status DisplayList_purchas(purchase& head);
 
 // ���ļ��е�����������
-Status FdisplayList_purchas(purchase &head);
+Status FdisplayList_purchas(FILE* fp, purchase& head);
 
 // ����һ���յĴ�ͷ���Ĺ�Ӧ��˫������
-Status InitList_suppliers(suppliers &head, suppliers &tail);
+Status InitList_suppliers(suppliers& head, suppliers& tail);
 
 // ���ҹ�Ӧ�̹�˾������ؼ���ƥ��Ĺ�Ӧ�̽��
-Status ListHandle_suppliers(suppliers &head, suppliers &p, char corporate_name[]);
+Status ListHandle_suppliers(suppliers& head, suppliers& p, char corporate_name[]);
 
 // �ڹ�Ӧ������β������һ����Ӧ�̽��
-Status ListAdd_suppliers(suppliers &tail, char corporate_name[], char main_business[], char main_products[], char brand[], char contact_person[], char telephone[]);
+Status ListAdd_suppliers(suppliers& tail, char corporate_name[], char main_business[], char main_products[], char brand[], char contact_person[], char telephone[]);
 
 // �Ӵ�����¼�빩Ӧ����Ϣ
-Status Add_suppliers(suppliers &head, suppliers &tail);
+Status Add_suppliers(suppliers& head, suppliers& tail);
 
 // ���ļ��е��빩Ӧ����Ϣ
-Status Fadd_suppliers(suppliers &head, suppliers &tail);
+Status Fadd_suppliers(suppliers& head, suppliers& tail);
 
 // ɾ����Ӧ�̹�˾������ؼ���ƥ��Ĺ�Ӧ�̽��
-Status ListDelete_suppliers(suppliers &head);
+Status ListDelete_suppliers(suppliers& head);
 
 // �޸Ĺ�Ӧ�̹�˾������ؼ���ƥ��Ĺ�Ӧ�̽��
-Status ListAlter_suppliers(suppliers &head, suppliers &tail);
+Status ListAlter_suppliers(suppliers& head, suppliers& tail);
 
 // ��ѯ��Ӧ�̹�˾������ؼ���ƥ��Ĺ�Ӧ�̽�㹩Ӧ����Ϣ
-Status ListSearch_suppliers(suppliers &head, suppliers &tail);
+Status ListSearch_suppliers(suppliers& head, suppliers& tail);
 
 // �ڴ����������Ӧ����Ϣ
-Status Printf_suppliers(suppliers &p);
+Status Printf_suppliers(suppliers& p);
 
 // ���ļ��е�����Ӧ����Ϣ
-Status Fprintf_suppliers(suppliers &p);
+Status Fprintf_suppliers(FILE* fp, suppliers& p);
 
-// ������Ӧ�����������ζ�ÿ���ڵ���ú���visit()��һ��visit()ʧ�ܣ������ʧ��
-Status TraverseList_suppliers(suppliers &head, Status(*visit)(suppliers &p));
+// �ڴ����б�����Ӧ�����������ζ�ÿ���ڵ���ú���visit()��һ��visit()ʧ�ܣ������ʧ��
+Status TraverseList_suppliers(suppliers& head, Status(*visit)(suppliers& p));
+
+// ���ļ��б�����Ӧ�����������ζ�ÿ���ڵ���ú���visit()��һ��visit()ʧ�ܣ������ʧ��
+Status FtraverseList_suppliers1(suppliers& head, Status(*visit)(FILE* fp, suppliers& p));
 
 // �ڴ�����¼����Ӧ������
-Status DisplayList_suppliers(suppliers &head);
+Status DisplayList_suppliers(suppliers& head);
 
 // ���ļ��е�����Ӧ������
-Status FdisplayList_suppliers(suppliers &head);
+Status FdisplayList_suppliers(suppliers& head);
+
+// ���湩Ӧ����Ϣ
+Status Save_suppliers(FILE* fp, suppliers& p);
+
+// ���ļ�������Ӧ�����������ζ�ÿ���ڵ���ú���visit()��һ��visit()ʧ�ܣ������ʧ��
+Status FtraverseList_suppliers2(suppliers& head, Status(*visit)(FILE* fp, suppliers& p));
+
+// ���湩Ӧ������
+Status Keep_suppliers(suppliers& head);
 
 // ����һ���յĴ�ͷ������Ʒ������
-Status InitList_commodity(commodity &head, commodity &tail);
+Status InitList_commodity(commodity& head, commodity& tail);
 
 // ����Ʒ����β������һ����Ʒ���
-Status ListAdd_commodity(commodity &tail, char id_Number[], char goods_Name[], char place[],
+Status ListAdd_commodity(commodity& tail, char id_Number[], char goods_Name[], char place[],
 	double buy_Prise, double sell_Prise, int remain_Number, int quality_Date, date purchase_Date, date produce_Date);
 
 // ������Ʒ�����ؼ���ƥ��Ĺ�Ӧ�̽��
-Status ListHandle_commodity(commodity &head, commodity &p, char id_Number[]);
+Status ListHandle_commodity(commodity& head, commodity& p, char id_Number[]);
 
 // �Ӵ�����¼����Ʒ��Ϣ
-Status Add_commodity(commodity &head, commodity &tail, suppliers &suppliers_head, suppliers &suppliers_tail);
+Status Add_commodity(commodity& head, commodity& tail, suppliers& suppliers_head, suppliers& suppliers_tail);
 
 // ���ļ��е�����Ʒ��Ϣ
-Status Fadd_commodity(commodity &head, commodity &tail, suppliers &suppliers_head, suppliers &suppliers_tail);
+Status Fadd_commodity(commodity& head, commodity& tail, suppliers& suppliers_head, suppliers& suppliers_tail);
 
 // ���ӹ�Ӧ����Ϣ����
-Status Interface_add_suppliers(commodity &commodity_head, commodity &commodity_tail,
-	suppliers &suppliers_head, suppliers &suppliers_tail);
-
-// ��ӡ��Ӧ����Ϣ����
-Status Interface_print_suppliers(commodity &commodity_head, commodity &commodity_tail,
-	suppliers &suppliers_head, suppliers &suppliers_tail);
+Status Interface_add_suppliers(commodity& commodity_head, commodity& commodity_tail,
+	suppliers& suppliers_head, suppliers& suppliers_tail);
 
 // ��Ӧ����Ϣ��������
-Status Interface_suppliers_management(commodity &commodity_head, commodity &commodity_tail,
-	suppliers &suppliers_head, suppliers &suppliers_tail);
+Status Interface_suppliers_management(commodity& commodity_head, commodity& commodity_tail,
+	suppliers& suppliers_head, suppliers& suppliers_tail);
 
 // ������������
-Status Interface_purchase_management(commodity &commodity_head, commodity &commodity_tail,
-	suppliers &suppliers_head, suppliers &suppliers_tail);
+Status Interface_purchase_management(commodity& commodity_head, commodity& commodity_tail,
+	suppliers& suppliers_head, suppliers& suppliers_tail);
 
 // ������
-Status Main_interface(commodity &commodity_head, commodity &commodity_tail,
-	suppliers &suppliers_head, suppliers &suppliers_tail);
+Status Main_interface(commodity& commodity_head, commodity& commodity_tail,
+	suppliers& suppliers_head, suppliers& suppliers_tail);
 
 #endif
\ No newline at end of file