diff --git a/kesj.c b/kesj.c
new file mode 100644
index 0000000..1de7bda
--- /dev/null
+++ b/kesj.c
@@ -0,0 +1,401 @@
+#include<stdio.h>
+#include<string.h>
+#include<windows.h>
+#include<math.h>
+#include<stdlib.h>
+#include<time.h>
+#include<dos.h>
+
+int main()
+{
+    system("color f4");
+    struct BOOK
+    {
+        char title[20];
+        char author[20];
+        char publice[20];
+        char time[20];
+        float price;
+        char locate[20];
+        int base;
+        //书籍名称，作者，出版社，出版日期，价格，在目录中的位置
+    };
+
+    struct BOOK *book;
+    int N=21;
+    book=(struct BOOK*)malloc(N*sizeof(struct BOOK));
+    strcpy( book[0].title, "《浪潮之巅》");
+    strcpy( book[0].author, "吴军");
+    strcpy( book[0].publice, "人民邮电出版社");
+    strcpy( book[0].time, "2016年5月1日");
+    book[0].price=99.00;
+    strcpy( book[0].locate, "书架A区");
+    book[0].base=19;
+
+    strcpy( book[1].title, "《人间失格》");
+    strcpy( book[1].author, "太宰治");
+    strcpy( book[1].publice, "现代出版社");
+    strcpy( book[1].time, "2016年10月");
+    book[1].price=26.00;
+    strcpy( book[1].locate, "书架B区");
+    book[1].base=9;
+
+    strcpy( book[2].title, "《围城》");
+    strcpy( book[2].author, "钱钟书");
+    strcpy( book[2].publice, "上海晨光出版社");
+    strcpy( book[2].time, "1947年");
+    book[2].price=40.00;
+    strcpy( book[2].locate, "书架C区");
+    book[2].base=49;
+
+
+    strcpy( book[3].title, "《红高粱家族》");
+    strcpy( book[3].author, "莫言");
+    strcpy( book[3].publice, "人民文学出版社");
+    strcpy( book[3].time, "2007年1月");
+    book[3].price=28.00;
+    strcpy( book[3].locate, "书架D区");
+    book[3].base=39;
+
+    strcpy( book[4].title, "《百年孤独》");
+    strcpy( book[4].author, "加西亚·马尔克斯");
+    strcpy( book[4].publice, "新经典文化");
+    strcpy( book[4].time, "2011年6月");
+    book[4].price=39.50;
+    strcpy( book[4].locate, "书架E区");
+    book[4].base=29;
+
+    strcpy( book[5].title,"《平凡的世界》");
+    strcpy( book[5].author, "路遥");
+    strcpy( book[5].publice, "北京十月文艺出版社");
+    strcpy( book[5].time, "2017年6月1日");
+    book[5].price=29.90;
+    strcpy( book[5].locate, "二楼302");
+    book[5].base=50;
+
+    strcpy( book[6].title,"《老人与海》");
+    strcpy( book[6].author, "海明威");
+    strcpy( book[6].publice, "作家出版社");
+    strcpy( book[6].time, "2016年1月1日");
+    book[6].price=13.10;
+    strcpy( book[6].locate, "二楼302");
+    book[6].base=50;
+
+    strcpy( book[7].title,"《神曲》");
+    strcpy( book[7].author, "但丁");
+    strcpy( book[7].publice, "上海译文出版社");
+    strcpy( book[7].time, "2011年1月1日");
+    book[7].price=29.90;
+    strcpy( book[7].locate, "二楼302");
+    book[7].base=50;
+
+    strcpy( book[8].title,"《骆驼祥子》");
+    strcpy( book[8].author, "老舍");
+    strcpy( book[8].publice, "浙江工商大学出版社");
+    strcpy( book[8].time, "2017年8月1日");
+    book[8].price=16.30;
+    strcpy( book[8].locate, "二楼302");
+    book[8].base=50;
+
+    strcpy( book[9].title,"《朝花夕拾》");
+    strcpy( book[9].author, "鲁迅");
+    strcpy( book[9].publice, "台海出版社");
+    strcpy( book[9].time, "2012年8月1日");
+    book[9].price=22.40;
+    strcpy( book[9].locate, "二楼302");
+    book[9].base=50;
+
+    strcpy( book[10].title,"《茶花女》");
+    strcpy( book[10].author, "小仲马");
+    strcpy( book[10].publice, "西安交通大学出版社");
+    strcpy( book[10].time, "2017年8月1日");
+    book[10].price=10.10;
+    strcpy( book[10].locate, "二楼302");
+    book[10].base=50;
+
+    strcpy( book[11].title,"《傲慢与偏见》");
+    strcpy( book[11].author, "奥斯丁");
+    strcpy( book[11].publice, "西安交通大学出版社");
+    strcpy( book[11].time, "2017年1月1日");
+    book[11].price=15.50;
+    strcpy( book[11].locate, "二楼302");
+    book[11].base=50;
+
+    strcpy( book[12].title,"《红与黑》");
+    strcpy( book[12].author, "斯当达");
+    strcpy( book[12].publice, "西安交通大学出版社");
+    strcpy( book[12].time, "2017年7月1日");
+    book[12].price=18.90;
+    strcpy( book[12].locate, "二楼302");
+    book[12].base=50;
+
+    strcpy( book[13].title,"《罪与罚》");
+    strcpy( book[13].author, "陀思妥耶夫斯基");
+    strcpy( book[13].publice, "西安交通大学出版社");
+    strcpy( book[13].time, "2016年11月10日");
+    book[13].price=27.20;
+    strcpy( book[13].locate, "二楼302");
+    book[13].base=50;
+
+    strcpy( book[14].title,"《战争与和平》");
+    strcpy( book[14].author, "列夫·托尔斯泰");
+    strcpy( book[14].publice, "西安交通大学出版社");
+    strcpy( book[14].time, "2016年11月1日");
+    book[14].price=56.70;
+    strcpy( book[14].locate, "二楼302");
+    book[14].base=50;
+
+    strcpy( book[15].title,"《巴黎圣母院》");
+    strcpy( book[15].author, "雨果");
+    strcpy( book[15].publice, "上海文艺出版社");
+    strcpy( book[15].time, "2008年1月1日");
+    book[15].price=14.10;
+    strcpy( book[15].locate, "二楼302");
+    book[15].base=50;
+
+    strcpy( book[16].title,"《家》");
+    strcpy( book[16].author, "巴金");
+    strcpy( book[16].publice, "人民文学出版社");
+    strcpy( book[16].time, "1981年9月1日");
+    book[16].price=24.10;
+    strcpy( book[16].locate, "二楼302");
+    book[16].base=50;
+
+    strcpy( book[17].title,"《边城》");
+    strcpy( book[17].author, "沈从文");
+    strcpy( book[17].publice, "北京十月文艺出版社");
+    strcpy( book[17].time, "2018年8月1日");
+    book[17].price=19.70;
+    strcpy( book[17].locate, "二楼302");
+    book[17].base=50;
+
+    strcpy( book[18].title,"《红岩》");
+    strcpy( book[18].author, "罗广斌");
+    strcpy( book[18].publice, "中国青年出版社");
+    strcpy( book[18].time, "2017年9月1日");
+    book[18].price=22.70;
+    strcpy( book[18].locate, "二楼302");
+    book[18].base=50;
+
+    strcpy( book[19].title,"《呐喊》");
+    strcpy( book[19].author, "鲁迅");
+    strcpy( book[19].publice, "安徽教育出版社");
+    strcpy( book[19].time, "2015年1月1日");
+    book[19].price=15.40;
+    strcpy( book[19].locate, "二楼302");
+    book[19].base=50;
+
+    strcpy( book[20].title,"《活着》");
+    strcpy( book[20].author, "余华");
+    strcpy( book[20].publice, "作家出版社");
+    strcpy( book[20].time, "2012年8月1日");
+    book[20].price=15.30;
+    strcpy( book[20].locate, "二楼302");
+    book[20].base=50;
+
+
+
+
+    struct user
+    {
+        char user_name[100];
+        char user_pass[100];
+    } stu[2]= {{"xiaocong001","123456"},{"zhuzhu002","123456"}};
+    int num1=0;
+    int num2=0;
+    int w=0;
+    printf("***************欢迎来到深夜书店存货清单管理系统登录界面***************\n");                  //登录系统
+    while(1)
+    {
+        printf("\t\t请输入您的用户名：");
+        char u[100];
+
+        scanf("%s",u);
+
+        if(strcmp(stu[0].user_name,u)==0||strcmp(stu[1].user_name,u)==0)
+        {
+            break;
+        }
+
+        else
+        {
+            printf("不存在此用户！请重新输入！\n");
+            num1++;
+            if(num1==3)
+            {
+                printf("\n\t\t很抱歉，您没有权限进入系统！\n");
+                exit(0);
+            }
+        }
+    }
+    system("cls");
+    printf("***************欢迎来到深夜书店存货清单管理系统登录界面***************\n");
+    printf("\t\t请输入密码：");
+    while(1)
+    {
+        char p[20];
+        char ch=0;
+        int j=0;
+        int x=6;
+        int q=0;
+        while(x>0&&(ch=getch())!='\r')
+        {
+
+            if(ch=='\b')
+            {
+                if(j>0)
+                {
+                    printf("\b \b");
+                    q--;
+                    j--;
+
+                }
+                else
+                {
+                    printf("\a");
+                    continue;
+                }
+                x++;
+            }
+            else
+            {
+
+                putchar('*');
+                p[q]=ch;
+                q++;
+                x--;
+                j++;
+            }
+
+
+        }
+
+        p[6]='\0';
+
+        if(strcmp(stu[0].user_pass,p)==0)
+        {
+            printf("   登录成功\n");
+            break;
+        }
+        else
+        {
+            if(num2!=2)
+            {
+                printf("\n               密码错误，请重新输入:");
+            }
+            num2++;
+            if(num2==3)
+            {
+                printf("\n");
+                printf("密码输入错误超过三次，系统3秒后将关闭\n");
+                Sleep(1000);
+                printf("3\n");
+                Sleep(1000);
+                printf("2\n");
+                Sleep(1000);
+                printf("1\n");
+                exit(0);
+            }
+        }
+    }
+    system("cls");                //清屏
+    system("color e5");
+
+    char t[20],a[20];
+    int i;
+    float sum[100]= {0};
+
+
+    while(1)
+    {
+        int n=0;
+        int j=0;
+        printf("\t\t***************************************\n");
+        printf("\t\t*如需退出输入带有'*'的任意两个字符串。*\n");
+        printf("\t\t*eg:'* *'                             *\n");
+        printf("\t\t***************************************\n\n\n");
+        printf("请输入您要搜寻的书名与著者:\n") ;
+
+        scanf("%s%s",&t,&a);
+        if((*t=='*')||(*a=='*'))
+        {
+            printf("\t\t请求退出系统成功\n");
+            break;
+        }
+        for(i=0; i<21; i++)
+        {
+            if((strcmp(t,book[i].title)==0)||strcmp(t,book[i].author)==0)
+            {
+                if((strcmp(a,book[i].author)==0)||strcmp(a,book[i].title)==0)
+                {
+                    printf("\t|-----------------------------------\n");
+                    printf("\t|***********书目在清单内***********|\n");
+                    printf("\t|书名        :%20s |\n", book[i].title);
+                    printf("\t|著者        :%20s |\n", book[i].author);
+                    printf("\t|出版社      :%20s |\n", book[i].publice);
+                    printf("\t|出版时间    :%20s |\n", book[i].time);
+                    printf("\t|价格        :%20.2f |\n",book[i].price);
+                    printf("\t|位置        :%20s |\n",book[i].locate);
+                    printf("\t|库存        :%20d |\n",book[i].base);
+                    printf("\t-----------------------------------|\n");
+                    printf("请输入所需数量:");
+                    int num;
+                    int m=1;
+                    while(m==1)
+                    {
+                        scanf("%d",&num);
+                        if(num<0)
+                        {
+                            printf("输入有误.\n");
+                            printf("请入正确的数值：");
+                        }
+                        else if(num<=book[i].base)
+                        {
+                            book[i].base=book[i].base - num;
+                            printf("\n\n\t\t已选定%d 本 %s\n",num,book[i].title);
+                            sum[i]=num*book[i].price;
+                            printf("\t\t此次选定所需支付的金额:%.2f\n",sum[i]);
+                            float s=0.0;
+                            for(i=0; i<21; i++)
+                                s+=sum[i];
+                            printf("\t\t当前总金额：%.2f\n\n\n",s);
+                            m=0;
+                        }
+                        else
+                        {
+                            printf("所需数量不在库存范围内\n");
+                            printf("请输入库存以内的数量：");
+
+                        }
+                    }
+                    n=1;
+                }
+
+            }
+
+        }
+        if(n==0)
+        {
+            printf("\t请输入正确的书名以及对应的作者。\n");
+        }
+        printf("\t\t*请继续挑选所需书籍。\t*\n\t\t*如果不需要请退出。\t*\n");
+        printf("\n");
+    }
+    float s=0.0;
+    for(i=0; i<21; i++)
+        s+=sum[i];
+    printf("\t\t\t\t总共需支付：%.2f\n",s);
+    Sleep(3000);
+    system("cls");
+    system("color f6");
+    Sleep(1000);
+    printf("\t\t\t\t欢迎下次光临深夜书店。\n");
+    Sleep(1000);
+    printf("\t\t\t\t书中搞不好没有黄金屋  千钟粟\n");
+    Sleep(1000);
+    printf("\t\t\t\t颜如玉\n");
+    Sleep(1000);
+    printf("\t\t\t\t可书店  有你啊");
+    return 0;
+}
+
diff --git a/kesj.exe b/kesj.exe
new file mode 100644
index 0000000..a4fadef
Binary files /dev/null and b/kesj.exe differ