diff --git a/code/sell.cpp b/code/sell.cpp
new file mode 100644
index 0000000000000000000000000000000000000000..ce6c83d7359d482e9c1f1bfc3605357544e195b1
--- /dev/null
+++ b/code/sell.cpp
@@ -0,0 +1,275 @@
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <time.h>
+#include "sellFun.h"
+
+extern commodity commodity_head;//商品（库存）头指针
+
+__declspec(selectany) records *all;//总销售记录头指针
+records *single;//实时销售记录头指针
+bool isAllInited = false;//总销售记录头指针是否已被初始化
+
+/****************************************************
+ *  createRecordList -- 创建记录链表
+ *  参数：无
+ *  返回值：记录链表头指针
+ ****************************************************/
+records *createRecordList()
+{
+	records *recordHead;
+	recordHead = (records *)malloc(sizeof(records));
+	recordHead->next = NULL;
+	return recordHead;
+}
+
+/****************************************************
+ *  searchGoods -- 货物是否存在（货查）
+ *  参数：id：商品编号
+ *        head：货物头指针
+ *  返回值：若找到，返回指向该商品的指针，否则返回NULL
+ ****************************************************/
+goods *searchGoods(char *id, goods *head)
+{
+	goods *p;
+	p = head->next;
+	while(p != NULL)
+	{
+		if(strcmp(id, p->id_Number) == 0)
+		{
+			return p;
+		}
+		p = p->next;
+	}
+	return NULL;
+}
+
+/****************************************************
+ *  addRecords -- 增加销售记录
+ *  参数：record：销售记录头指针
+ *        soldGoods：卖的货结构体（售货信息）
+ *        goods：商品信息
+ *        salespersonName：售货员姓名
+ *        lt：当前时间
+ *  返回值：无
+ ****************************************************/
+void addRecords(records *record, soldGoods soldGoods, goods *goods, char salespersonName[], struct tm *lt)
+{
+	records *p;
+	p = (records *)malloc(sizeof(records));
+	strcpy(p->id, goods->id_Number);			//货物编号
+	strcpy(p->goodsName, goods->goods_Name);	//货名
+	p->count = soldGoods.count;					//数量
+	strcpy(p->people, salespersonName);			//销售员姓名
+	p->price = soldGoods.count * goods->sell_Price;		//售价
+	p->year = lt->tm_year + 1900;	//年
+	p->mon = lt->tm_mon + 1;		//月
+	p->day = lt->tm_mday;			//日
+	p->hour = lt->tm_hour;			//时
+	p->min = lt->tm_min;			//分
+	p->sec = lt->tm_sec;			//秒
+	p->next = NULL;
+	p->next = record->next;
+	record->next = p;
+}
+
+/****************************************************
+ *  searchSingleRecord -- 查找实时记录
+ *  参数：head：实时记录头指针
+ *        id：货物id
+ *  返回值：查找到则返回该项指针，否则返回NULL
+ ****************************************************/
+records *searchSingleRecord(records *head, char *id)
+{
+	records *p;
+	p = head->next;
+	while(p != NULL)
+	{
+		if(strcmp(id, p->id) == 0)
+		{
+			return p;
+		}
+		p = p->next;
+	}
+	return NULL;
+}
+
+/****************************************************
+ *  searchAllRecord -- 查找总记录
+ *  参数：head：总记录头指针
+ *        name：货物名
+ *  返回值：查找到则返回该项指针，否则返回NULL
+ ****************************************************/
+records *searchAllRecord(records *head, char *name)
+{
+	records *p;
+	p = head->next;
+	while(p != NULL)
+	{
+		if(strcmp(name, p->goodsName) == 0)
+		{
+			return p;
+		}
+		p = p->next;
+	}
+	return NULL;
+}
+
+/****************************************************
+ *  printSingleRecord -- 打印实时记录
+ *  参数：head：实时记录链表头指针
+ *  返回值：无
+ ****************************************************/
+void printSingleRecord(records *head)
+{
+	records *p;
+	p = head->next;
+	if(p != NULL)
+	{
+		printf("商品编号  商品名  卖货人  销售额  销售时间\n");
+		while(p != NULL)
+		{
+			printf("%s %s %s %.2lf %d年%d月%d日 %d:%d:%d\n", p->id, p->goodsName, p->people, p->price, p->year, p->mon, p->day, p->hour, p->min, p->sec);
+			p = p->next;
+		}
+	}
+	else
+	{
+		printf("实时销售记录为空！\n");
+	}
+}
+
+/****************************************************
+ *  printAllRecord -- 打印总记录
+ *  参数：head：总记录链表头指针
+ *  返回值：无
+ ****************************************************/
+void printAllRecord(records *head)
+{
+	records *p;
+	p = head->next;
+	if(p != NULL)
+	{
+		printf("商品名  销售额  销售时间\n");
+		while(p != NULL)
+		{
+			printf("%s %.2lf %d年%d月%d日 %d:%d:%d\n", p->goodsName, p->price, p->year, p->mon, p->day, p->hour, p->min, p->sec);
+			p = p->next;
+		}
+	}
+	else
+	{
+		printf("总销售记录为空！\n");
+	}
+}
+
+/****************************************************
+ *  sell -- 卖货，返回实时销售记录（货删和改，记录增）
+ *  参数：goodsHead：库存链表头指针
+ *        singleRecord：实时销售记录头指针
+ *        a：顾客所买东西的种类数（的引用）
+ *  返回值：当前该件商品的小计金额
+ ****************************************************/
+double sell(goods *goodsHead, records *singleRecord, int &a)
+{
+	soldGoods soldGoods;
+	double money;
+	char salespersonName[15];
+	printf("请依次输入销售员姓名 商品编号 购买数量：\n");
+	scanf("%s %s %d", salespersonName, soldGoods.id_Number, &soldGoods.count);
+	goods *n = searchGoods(soldGoods.id_Number, goodsHead);
+	if(n != NULL)
+	{
+		if(soldGoods.count > n->remain_Number)
+		{
+			printf("库存不足，请重新清点商品数量！\n");
+			a = a + 1;		//重新计数
+			return 0;
+		}
+		n->remain_Number = n->remain_Number - soldGoods.count;	//更新库存
+		if(n->remain_Number == 0)
+		{
+			printf("%s(%s)正好卖没货了。\n", n->goods_Name, n->id_Number);	//可以删除但还是要进货的
+		}
+		time_t t;
+		struct tm *lt;
+		time(&t);
+		lt = localtime(&t);		//获取当前时间
+		addRecords(singleRecord, soldGoods, n, salespersonName, lt);	//更新实时销售记录
+		addRecords(all, soldGoods, n, salespersonName, lt);		// 更新总销售记录
+		return soldGoods.count * n->sell_Price;
+	}
+	else
+	{
+		printf("未找到编号为 %s 的商品，请重新输入！\n", soldGoods.id_Number);
+		a = a + 1;		//重新计数
+		return 0;
+	}
+}
+
+/****************************************************
+ *  sellmain -- 销售管理主界面
+ *  参数：无
+ *  返回值：正确结束，返回0
+ ****************************************************/
+int sellmain()
+{
+	goods *goods = commodity_head;//货物头指针
+	double money1 = 0, money2 = 0, money3 = 0;
+	int n;
+	int a;
+	single = createRecordList();
+	if(!isAllInited)
+	{
+		all = createRecordList();
+		isAllInited = true;
+	}
+	while(1)
+	{
+		system("cls");
+		printf("顾客结账请按 1\n");
+		printf("打印实时销售记录请按 2\n");
+		printf("打印总销售记录 3\n");
+		printf("退出程序请按 0\n");
+		printf("\n请选择：");
+		scanf("%d", &a);
+		if(a == 1)
+		{
+			printf("输入顾客所买东西的种类数：");
+			scanf("%d", &n);
+			printf("开始结账（请手动输入）：\n");
+			while(n > 0)
+			{
+				money2 = money2 + sell(goods, single, n);
+				n--;
+			}
+			printf("金额合计：%.2lf元。\n", money2);
+			printf("输入顾客所付钱数：");
+			scanf("%lf", &money1);
+			if(money1 >= money2)
+				printf("找零：%.2f元。\n", money1 - money2);
+			else
+			{
+				printf("所付金额不足，请继续付款：");
+				scanf("%lf", &money3);
+				money1 = money1 + money3;
+				printf("找零：%.2f元。\n", money1 - money2);
+			}
+		}
+		else if(a == 2)
+		{
+			printSingleRecord(single);
+		}
+		else if(a == 3)
+		{
+			printAllRecord(all);
+		}
+		else if(a == 0)
+		{
+			break;
+		}
+		system("pause");
+	}
+
+	return 0;
+}
\ No newline at end of file
diff --git a/code/sell.h b/code/sell.h
new file mode 100644
index 0000000000000000000000000000000000000000..186a8956861402a93835c5e78c833564aa911826
--- /dev/null
+++ b/code/sell.h
@@ -0,0 +1,49 @@
+#ifndef __SELL_H__
+#define __SELL_H__
+
+#include "date.h"
+
+//库存商品结构体
+typedef struct goods
+{
+	char id_Number[20]; //	商品编号
+	char goods_Name[20]; //	商品名称
+	char place[20]; //	库存位置
+	double buy_Price; //	商品进价
+	double sell_Price; //	商品售价
+	int remain_Number; //	商品数量
+	int quality_Date; //	保质期
+	date purchase_Date; //	进货日期
+	date produce_Date; //	生产日期
+	goods *pre; //	上一个商品指针
+	goods *next; //	下一个商品指针
+}*commodity;
+
+//卖的货结构体
+struct soldGoods
+{
+	char id_Number[20];//商品编号
+	char name[20];
+	int count;//数量
+	double price;//单价
+};
+
+//销售记录结构体
+struct records
+{
+	char id[20];//货物id
+	char goodsName[20];//货物名
+	char people[20];//销售员
+	int count;//销售数量
+	double price;//销售金额
+	//销售时间
+	int year;
+	int mon;
+	int day;
+	int hour;
+	int min;
+	int sec;
+	records *next;
+};
+
+#endif // !__SELL_H__
diff --git a/code/sellFun.h b/code/sellFun.h
new file mode 100644
index 0000000000000000000000000000000000000000..7f3c1587bb9b238aa9cd019ef0c4326027f73a30
--- /dev/null
+++ b/code/sellFun.h
@@ -0,0 +1,33 @@
+#ifndef __SELLFUN_H__
+#define __SELLFUN_H__
+
+#include "sell.h"
+
+//创建记录链表
+records *createRecordList();
+
+//货物是否存在（货查）
+goods *searchGoods(char *id, goods *head);
+
+//增加销售记录
+void addRecords(records *record, soldGoods soldGoods, goods *goods, char salespersonName[], struct tm *lt);
+
+//查找实时记录
+records *searchSingleRecord(records *head, char *id);
+
+//查找总记录
+records *searchAllRecord(records *head, char *name);
+
+//打印实时记录
+void printSingleRecord(records *head);
+
+//打印总记录
+void printAllRecord(records *head);
+
+//卖货，返回实时销售记录（货删和改，记录增）
+double sell(goods *goodsHead, records *singleRecord, int &a);
+
+//销售管理主界面
+int sellmain();
+
+#endif // !__SELLFUN_H__