diff --git a/main.c b/main.c
new file mode 100644
index 0000000..d84bb06
--- /dev/null
+++ b/main.c
@@ -0,0 +1,24 @@
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <conio.h>
+#include <windows.h>
+#include "BOOKUI.h"
+#include "user.h"
+
+int main()
+{
+    HideCursor();
+    choice = 0;
+    setcolor(11,0);
+    Settitle("|学生选课系统|");
+    system("mode con cols=180 lines=50");
+    player();
+    system("mode con cols=105 lines=30");
+
+    showtitle();
+    HideCursor();
+    login1();//登录或注册的选择界面（进入程序的第一步）
+    return 0;
+}
+
diff --git a/norusers.dat b/norusers.dat
new file mode 100644
index 0000000..bb9743c
--- /dev/null
+++ b/norusers.dat
@@ -0,0 +1 @@
+ 18408000921 123123 001 o o 1
\ No newline at end of file
diff --git a/user.c b/user.c
new file mode 100644
index 0000000..10c7bb5
--- /dev/null
+++ b/user.c
@@ -0,0 +1,169 @@
+#include "user.h"
+#include "BOOKUI.h"
+#include "login.h"
+#include <string.h>
+
+int login1()
+{
+    system("cls");
+    HideCursor();
+    showtitle();
+    while(1)
+    {
+        welcome();
+        HideCursor();
+        char a,b;
+        b = getch();
+        if(b==-32)
+        a = getch();
+        fflush(stdin);
+        if(a == UP && b == -32)
+        {
+            choice--;
+        }
+        else if(a == DOWN && b == -32)
+        {
+            choice++;
+        }
+        else if(b==13){
+            login2(choice);
+            break;
+        }
+        else{
+            setposition(19,12);
+            printf("输入“↑”或“↓”,回车键确认");
+        }
+        if(choice<0) choice = 1;
+        if(choice>1) choice = 0;
+    }
+    return 0;
+}
+
+int login2(int k)
+{
+    //k==0为登陆
+    if(k == 0)
+    {
+        Settitle("|学生选课系统|登陆界面|");
+        while(1)
+        {
+            comuser(choice);
+            HideCursor();
+            char a,b;
+            b = getch();
+            if(b == -32)
+            a = getch();
+            fflush(stdin);
+            if(a == UP && b == -32)
+            {
+                choice--;
+            }
+            else if(a == DOWN && b == -32)
+            {
+                choice++;
+            }
+            else if(b==13){
+                login3(choice);
+                break;
+            }
+            else{
+                setposition(LB,12);
+                printf("输入“↑”或“↓”,回车键确认");
+            }
+            if(choice<0) choice = 1;
+            if(choice>1) choice = 0;
+        }
+        return 0;
+    }
+    //k==1为注册
+    if(k == 1)
+    {
+        regist();
+    }
+    return 0;
+}
+
+void login3(int k)
+{
+    //k==0表示普通用户登陆
+    if(k==0)
+    {
+        Settitle("|学生选课系统|登陆界面|普通用户登陆|");
+        loginuser();
+    }
+    //k==1表示管理员登陆
+    if(k==1)
+    {
+        Settitle("|学生选课系统|登陆界面|管理员登陆|");
+        int lim = 5;
+        while(lim--)
+        {
+
+            if(!admin())
+            {
+                Sleep(300);
+                setposition(LB,15);
+                printf("你还剩%d次机会\n",lim);
+                HideCursor();
+                Sleep(1000);
+                system("cls");
+                showtitle();
+                comuser(1);
+                setposition(LB,12);
+                HideCursor2();
+            }
+            else break;
+        }
+    }
+}
+
+int admin()
+{
+    Settitle("|学生选课系统|管理员登陆|");
+    char adminpw[50];
+    char adminpwr[50];
+    system("cls");
+    showtitle();
+    comuser(1);
+    setposition(LB,12);
+    HideCursor2();
+    printf("请输入管理员账号：");
+    gets(ADMIN.id);
+    if((fp = fopen(ADMIN.id,"r"))==NULL)
+    {
+        system("cls");
+        printf("\n\n\t不存在该管理员！");
+        printf("\n\n\t3秒后退出程序\n");
+        Sleep(3000);
+        exit(0);
+    }
+    if(fgetc(fp)==EOF)
+    {
+        printf("\n\n\t不安全的管理员！");
+        printf("\n\n\t3秒后退出程序\n");
+        Sleep(3000);
+        exit(0);
+    }
+    rewind(fp);
+    fscanf(fp,"%s",adminpwr);
+    setposition(LB,13);
+    printf("请输入管理员密码：");
+    gets(adminpw);
+    rewind(fp);
+    setposition(LB,14);
+    if(strcmp(adminpw,adminpwr) == 0)
+    {
+        fscanf(fp,"%s%s%s%s%d",ADMIN.pass,ADMIN.book1,ADMIN.book2,ADMIN.book3,&ADMIN.booknum);
+        close();
+        admin_BOOK_choice();
+        return 1;
+    }
+    else if(strcmp(adminpw,adminpwr) != 0)
+    {
+        printf("密码错误");
+        close();
+        return 0;
+    }
+    return 0;
+}
+
diff --git a/user.h b/user.h
new file mode 100644
index 0000000..0ff49de
--- /dev/null
+++ b/user.h
@@ -0,0 +1,16 @@
+#ifndef USER_H_INCLUDED
+#define USER_H_INCLUDED
+
+#include<conio.h>
+#include "BOOKUI.h"
+#include "admin.h"
+#define UP 72
+#define DOWN 80
+#define RIGHT 77
+#define LEFT 75
+int admin();//管理员登陆
+int login1();       //选择登陆或注册
+int login2(int);    //进行登陆类型选择
+void login3(int);    //进行登陆
+
+#endif // USER_H_INCLUDED