diff --git a/student/models.py b/student/models.py
new file mode 100644
index 0000000..e20ad76
--- /dev/null
+++ b/student/models.py
@@ -0,0 +1,92 @@
+from django.db import models
+
+# Create your models here.
+
+SEX=(
+    ('男','男'),
+    ('女','女'),
+)
+
+class Student(models.Model):
+    id=models.CharField('学号',max_length=20,primary_key=True)
+    name=models.CharField('姓名',max_length=20)
+    sex=models.CharField('性别',max_length=4,choices=SEX,default='男')
+    dept=models.CharField('学院',max_length=20,default=None)
+    major=models.CharField('专业',max_length=20,default=None)
+    password=models.CharField('密码',max_length=20,default='111')
+    email=models.EmailField('邮箱',default=None)
+    birth=models.DateField('出生日期')
+    class Meta:
+        db_table='student'
+        verbose_name='学生'
+        verbose_name_plural=verbose_name
+    def __str__(self):
+        return self.id;
+
+class Teacher(models.Model):
+    id=models.CharField("教工号",max_length=20,primary_key=True)
+    name=models.CharField('姓名',max_length=20)
+    sex=models.CharField('性别',max_length=4,choices=SEX,default='男')
+    dept=models.CharField('学院',max_length=20,default=None)
+    email=models.EmailField('邮箱',default=None)
+    password=models.CharField('密码',max_length=20,default='000000')
+    birth=models.DateField('出生日期')
+    class Meta:
+        db_table='teacher'
+        verbose_name='教师'
+        verbose_name_plural=verbose_name
+    def __str__(self):
+        return self.name;
+
+class Question(models.Model):
+    ANSWER=(
+        ('A','A'),
+        ('B','B'),
+        ('C','C'),
+        ('D','D'),
+    )
+    LEVEL={
+        ('1','easy'),
+        ('2','general'),
+        ('3','difficult'),
+    }
+    id = models.AutoField(primary_key=True)
+    subject = models.CharField('科目', max_length=20)
+    title = models.TextField('题目')
+    optionA=models.CharField('A选项',max_length=30)
+    optionB=models.CharField('B选项',max_length=30)
+    optionC=models.CharField('C选项',max_length=30)
+    optionD=models.CharField('D选项',max_length=30)
+    answer=models.CharField('答案',max_length=10,choices=ANSWER)
+    level=models.CharField('等级',max_length=10,choices=LEVEL)
+    score=models.IntegerField('分数',default=1)
+    class Meta:
+        db_table='question'
+        verbose_name='单项选择题库'
+        verbose_name_plural=verbose_name
+    def __str__(self):
+        return '<%s:%s>'%(self.subject,self.title);
+
+class Paper(models.Model):
+    pid=models.ManyToManyField(Question)
+    tid=models.ForeignKey(Teacher,on_delete=models.CASCADE)
+    subject=models.CharField('科目',max_length=20,default='')
+    major=models.CharField('专业',max_length=20)
+    examtime=models.DateTimeField()
+    class Meta:
+        db_table='paper'
+        verbose_name='试卷'
+        verbose_name_plural=verbose_name
+    def __str__(self):
+        return self.major;
+
+class Grade(models.Model):
+    sid=models.ForeignKey(Student,on_delete=models.CASCADE,default='')#添加外键
+    subject=models.CharField('科目',max_length=20,default='')
+    grade=models.IntegerField()
+    def __str__(self):
+        return '<%s:%s>'%(self.sid,self.grade);
+    class Meta:
+        db_table='grade'
+        verbose_name='成绩'
+        verbose_name_plural=verbose_name