[global]
index-url = http://mirrors.aliyun.com/pypi/simple/
[install]
trusted-host=mirrors.aliyun.com

INSTALLED_APPS = [
  'django.contrib.admin',
  'django.contrib.auth',
  'django.contrib.contenttypes',
  'django.contrib.sessions',
  'django.contrib.messages',
  'django.contrib.staticfiles',
  'student',#將建立的app名稱加入Installed_APPs中
]

MIDDLEWARE = [
  'django.middleware.security.SecurityMiddleware',
  'django.contrib.sessions.middleware.SessionMiddleware',
  'django.middleware.common.CommonMiddleware',
  # 'django.middleware.csrf.CsrfViewMiddleware',
  'django.contrib.auth.middleware.AuthenticationMiddleware',
  'django.contrib.messages.middleware.MessageMiddleware',
  'django.middleware.clickjacking.XFrameOptionsMiddleware',
]

ROOT_URLCONF = 'onlineExam.urls'

TEMPLATES = [
  {
    'BACKEND': 'django.template.backends.django.DjangoTemplates',
    'DIRS': [os.path.join(BASE_DIR, 'templates')]
    ,
    'APP_DIRS': True,
    'OPTIONS': {
      'context_processors': [
        'django.template.context_processors.debug',
        'django.template.context_processors.request',
        'django.contrib.auth.context_processors.auth',
        'django.contrib.messages.context_processors.messages',
      ],
    },
  },
]

WSGI_APPLICATION = 'onlineExam.wsgi.application'


# Database
# https://docs.djangoproject.com/en/2.1/ref/settings/#databases

#配置mysql數(shù)據(jù)庫(kù)
DATABASES = {
  'default': {
    'ENGINE': 'django.db.backends.mysql',
    'NAME': 'exam',#使用數(shù)據(jù)庫(kù)的名稱
    'USER':'root',#用戶名
    'PASSWORD':'123456',#密碼
    'HOST':'127.0.0.1',#地址
    'PORT':'3306'#端口號(hào)
  }
}


# Password validation
# https://docs.djangoproject.com/en/2.1/ref/settings/#auth-password-validators

AUTH_PASSWORD_VALIDATORS = [
  {
    'NAME': 'django.contrib.auth.password_validation.UserAttributeSimilarityValidator',
  },
  {
    'NAME': 'django.contrib.auth.password_validation.MinimumLengthValidator',
  },
  {
    'NAME': 'django.contrib.auth.password_validation.CommonPasswordValidator',
  },
  {
    'NAME': 'django.contrib.auth.password_validation.NumericPasswordValidator',
  },
]


# Internationalization
# https://docs.djangoproject.com/en/2.1/topics/i18n/

#修改語(yǔ)言為中文
LANGUAGE_CODE = 'zh-hans'

#修改時(shí)區(qū)為shanghai
TIME_ZONE = 'Asia/Shanghai'

USE_I18N = True

USE_L10N = True

USE_TZ = True


# Static files (CSS, JavaScript, Images)
# https://docs.djangoproject.com/en/2.1/howto/static-files/

#添加static文件夾
STATIC_URL = '/static/'
STATICFILES_DIRS=[
  os.path.join(BASE_DIR,'static'),
]

import pymysql
pymysql.install_as_MySQLdb()

from django.db import models

# Create your models here.

# 為性別,學(xué)院 指定備選字段
SEX=(
  ('男','男'),
  ('女','女'),
)
DEPT=(
  ('計(jì)算機(jī)與通信學(xué)院','計(jì)算機(jī)與通信學(xué)院'),
  ('電氣與自動(dòng)化學(xué)院','電氣與自動(dòng)化學(xué)院'),
  ('外國(guó)語(yǔ)學(xué)院','外國(guó)語(yǔ)學(xué)院'),
  ('理學(xué)院','理學(xué)院'),
)

class Student(models.Model):
  id=models.CharField('學(xué)號(hào)',max_length=20,primary_key=True)
  name=models.CharField('姓名',max_length=20)
  sex=models.CharField('性別',max_length=4,choices=SEX,default='男')
  dept=models.CharField('學(xué)院',max_length=20,choices=DEPT,default=None)
  major=models.CharField('專業(yè)',max_length=20,default=None)
  password=models.CharField('密碼',max_length=20,default='111')
  email=models.EmailField('郵箱',default=None)
  birth=models.DateField('出生日期')

  class Meta:
    db_table='student'
    verbose_name='學(xué)生'
    verbose_name_plural=verbose_name
  def __str__(self):
    return self.id;

class Teacher(models.Model):
  id=models.CharField("教工號(hào)",max_length=20,primary_key=True)
  name=models.CharField('姓名',max_length=20)
  sex=models.CharField('性別',max_length=4,choices=SEX,default='男')
  dept=models.CharField('學(xué)院',max_length=20,choices=DEPT,default=None)
  email=models.EmailField('郵箱',default=None)
  password=models.CharField('密碼',max_length=20,default='000000')
  birth=models.DateField('出生日期')

  class Meta:
    db_table='teacher'
    verbose_name='教師'
    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('題目')
  optionA=models.CharField('A選項(xiàng)',max_length=30)
  optionB=models.CharField('B選項(xiàng)',max_length=30)
  optionC=models.CharField('C選項(xiàng)',max_length=30)
  optionD=models.CharField('D選項(xiàng)',max_length=30)
  answer=models.CharField('答案',max_length=10,choices=ANSWER)
  level=models.CharField('等級(jí)',max_length=10,choices=LEVEL)
  score=models.IntegerField('分?jǐn)?shù)',default=1)

  class Meta:
    db_table='question'
    verbose_name='單項(xiàng)選擇題庫(kù)'
    verbose_name_plural=verbose_name
  def __str__(self):
    return '<%s:%s>'%(self.subject,self.title);

class Paper(models.Model):
  #題號(hào)pid 和題庫(kù)為多對(duì)多的關(guān)系
  pid=models.ManyToManyField(Question)#多對(duì)多
  tid=models.ForeignKey(Teacher,on_delete=models.CASCADE)#添加外鍵
  subject=models.CharField('科目',max_length=20,default='')
  major=models.CharField('考卷適用專業(yè)',max_length=20)
  examtime=models.DateTimeField()


  class Meta:
    db_table='paper'
    verbose_name='試卷'
    verbose_name_plural=verbose_name
  def __str__(self):
    return self.major;

class Grade(models.Model):
  sid=models.ForeignKey(Student,on_delete=models.CASCADE,default='')#添加外鍵
  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='成績(jī)'
    verbose_name_plural=verbose_name

<!DOCTYPE html>
<html lang="en">
<head>
  <meta charset="UTF-8">
  <meta name="viewport" content="width=device-width, initial-scale=1">
  <link href="../static/bootstrap-4.3.1-dist/css/bootstrap.min.css" rel="external nofollow" rel="external nofollow" rel="stylesheet">
  <!-- 必須在引入bootstarp.js之前引入 -->
  <script src="../static/jquery-3.3.1.min.js"></script>

  <script src="../static/bootstrap-4.3.1-dist/js/bootstrap.min.js"></script>

  <link href="../static/css/index.css" rel="external nofollow" rel="stylesheet">

  <title>在線考試系統(tǒng)</title>

</head>
<body>

<nav class="navbar navbar-expand-sm bg-light navbar-light ">
  <ul class="navbar-nav">
    <li class="nav-item">
      <a class="nav-link" href="/toIndex/" rel="external nofollow" ><h3>在線考試系統(tǒng) 首頁(yè)</h3></a>
    </li>


    <li>
      <button data-target="#stuModal" data-toggle="modal" class="btn btn-primary">學(xué)生登陸</button>
    </li>

    <li>
      <button data-target="#teaModal" data-toggle="modal" class="btn btn-primary">教師登陸</button>
    </li>

    <li class="nav-item">
      <a class="nav-link" href="/admin" rel="external nofollow" >管理員</a>
    </li>


    <li style="position: fixed;right: 70px; font-size: 40px;color: #9fcdff">{{ student.name }}{{ message }}</li>
    <a href="/logout/" rel="external nofollow" ><li style="position: fixed;right: 20px; font-size: 20px;top:22px;color:#cc1313">退出</li></a>

  </ul>
</nav>

<div class="container">

 <br>
 <!-- Nav pills -->
 <ul class="nav nav-pills" role="tablist">
  <li class="nav-item">
   <a class="nav-link active" data-toggle="pill" href="#home" rel="external nofollow" >個(gè)人信息</a>
  </li>
  <li class="nav-item">
   <a class="nav-link" data-toggle="pill" href="#menu1" rel="external nofollow" >考試信息</a>
  </li>
  <li class="nav-item">
   <a class="nav-link" data-toggle="pill" href="#menu2" rel="external nofollow" >成績(jī)查詢</a>
  </li>
 </ul>

 <!-- Tab panes -->
 <div class="tab-content">
  <div id="home" class="container tab-pane active"><br>
   <h3>個(gè)人信息</h3>

    <table class="table">
  <thead>
   <tr>
    <th>屬性</th>
    <th>信息</th>

   </tr>
  </thead>
  <tbody>
   <tr>
    <td>學(xué)號(hào)</td>
    <td>{{ student.id }}</td>

   </tr>
   <tr class="table-primary">
    <td>姓名</td>
    <td>{{ student.name }}</td>

   </tr>
   <tr class="table-success">
    <td>性別</td>
    <td>{{ student.sex }}</td>

   </tr>
   <tr class="table-danger">
    <td>學(xué)院</td>
    <td>{{ student.dept }}</td>

   </tr>

    <tr class="table-success">
    <td>專業(yè)</td>
    <td>{{ student.major }}</td>

   </tr>

   <tr class="table-warning">
    <td>郵箱地址</td>
    <td>{{ student.email }}</td>

   </tr>
   <tr class="table-active">
    <td>出生日期</td>
    <td>{{ student.birth }}</td>

   </tr>

  </tbody>
 </table>
  </div>

  <div id="menu1" class="container tab-pane fade"><br>
   <h3>考試信息</h3>
   <p></p>
    <table class="table">
  <thead>
   <tr>
     <th>學(xué)號(hào)</th>
    <th>姓名</th>
    <th>考試科目</th>
     <th>考試時(shí)間</th>
     <th>操作</th>
   </tr>
  </thead>
  <tbody>
  {#  遍歷字典 paper #}
  {% for paper1 in paper %}




   <tr class="table-info">
     <td>{{ student.id }}</td>
     <td>{{ student.name }}</td>
     <td>{{ paper1.subject }}{{ paper2.subject }}</td>
     <td>{{ paper1.examtime }} {{ paper2.examtime }}</td>
     <td>
       <a href="/startExam/?sid={{ student.id }}&subject={{ paper1.subject }}" rel="external nofollow" rel="external nofollow" >
       <button class="btn btn-primary" id="toExam+{{ paper1.subject }}">開始考試</button>
       </a>
     </td>
   </tr>
  {% endfor %}



  </tbody>
 </table>
  </div>

  <div id="menu2" class="container tab-pane fade"><br>
   <h3>考試成績(jī)</h3>
   <p></p>
    <table class="table">
    <thead>
     <tr>
      <th>姓名</th>
      <th>科目</th>
      <th>成績(jī)</th>

     </tr>
    </thead>
  <tbody>

  {% for grade1 in grade %}
    <tr class="table-primary">
    <td>{{ student.name }}</td>
    <td>{{ grade1.subject }}</td>
    <td>{{ grade1.grade }}</td>

   </tr>
  {% endfor %}




  </tbody>
 </table>
  </div>
 </div>
</div>


{#學(xué)生登錄的模態(tài)對(duì)話框#}
<div class="modal fade" tabindex="-1" role="dialog" id="stuModal">
  <div class="modal-dialog" role="document">
    <div class="modal-content">
      <div class="modal-header">
        <button type="button" class="close" data-dismiss="modal" aria-label="Close">
          <span aria-hidden="true">&times;</span>
        </button>
        <h4 class="modal-title">學(xué)生登陸</h4>
      </div>
      <form class="form-horizontal" action="/studentLogin/" method="post">
      <div class="modal-body">

          <div class="form-group">
            <label class="col-sm-3 control-label">學(xué)生學(xué)號(hào)</label>
            <div class="col-sm-9">
              <input type="text" class="form-control" name="id" placeholder="輸入學(xué)號(hào)">
            </div>
          </div>
          <div class="form-group">
            <label for="addr" class="col-sm-3 control-label">密碼</label>
            <div class="col-sm-9">
              <!--
              <textarea id="addr" class="form-control" rows="3"></textarea>
              -->
              <input type="password" class="form-control" name="password" placeholder="輸入密碼">
             </div>
          </div>

      </div>
      <div class="modal-footer">
        <button type="button" class="btn btn-default" data-dismiss="modal">取消</button>
        <button type="submit" class="btn btn-primary">登陸</button>
      </div>
      </form>
    </div><!-- /.modal-content -->
  </div><!-- /.modal-dialog -->
</div>

{#老師登錄的模態(tài)對(duì)話框#}
<div class="modal fade" tabindex="-1" role="dialog" id="teaModal">
  <div class="modal-dialog" role="document">
    <div class="modal-content">
      <div class="modal-header">
        <button type="button" class="close" data-dismiss="modal" aria-label="Close">
          <span aria-hidden="true">&times;</span>
        </button>
        <h4 class="modal-title">教師登陸</h4>
      </div>
      <form class="form-horizontal" action="/teacherLogin/" method="post">
      <div class="modal-body">

          <div class="form-group">
            <label for="inputEmail3" class="col-sm-3 control-label">教師工號(hào)</label>
            <div class="col-sm-9">
              <input type="text" class="form-control" name="id" placeholder="輸入學(xué)號(hào)">
            </div>
          </div>
          <div class="form-group">
            <label for="addr" class="col-sm-3 control-label">密碼</label>
            <div class="col-sm-9">
              <!--
              <textarea id="addr" class="form-control" rows="3"></textarea>
              -->
              <input type="password" name="password" placeholder="輸入密碼" class="form-control">
             </div>
          </div>

      </div>
      <div class="modal-footer">
        <button type="button" class="btn btn-default" data-dismiss="modal">取消</button>
        <button type="submit" class="btn btn-primary">登陸</button>
      </div>
      </form>
    </div><!-- /.modal-content -->
  </div><!-- /.modal-dialog -->
</div>

</body>

<script>
  $("#toExam+{{ paper1.subject }}").click(function () {

  });
</script>
</html>

from django.shortcuts import render,redirect
from student import models
from django.http import HttpResponse
from django.contrib.auth import logout
# Create your views here.
def index(request):
  return render(request,'index.html')

from django.contrib import admin
from django.urls import path
from django.conf.urls import url
from student import views

urlpatterns = [
  #管理員登陸
  path('admin/', admin.site.urls),
  #默認(rèn)訪問首頁(yè)
  url(r'^$',views.index),
]

from django.contrib import admin
from .models import Student,Teacher,Paper,Question,Grade
# Register your models here.
# 修改名稱
admin.site.site_header='在線考試系統(tǒng)后臺(tái)'
admin.site.site_title='在線考試系統(tǒng)'

@admin.register(Student)
class StudentAdmin(admin.ModelAdmin):
  list_display = ('id','name','sex','dept','major','password','email','birth')# 要顯示哪些信息
  list_display_links = ('id','name')#點(diǎn)擊哪些信息可以進(jìn)入編輯頁(yè)面
  search_fields = ['name','dept','major','birth']  #指定要搜索的字段，將會(huì)出現(xiàn)一個(gè)搜索框讓管理員搜索關(guān)鍵詞
  list_filter =['name','dept','major','birth']#指定列表過濾器，右邊將會(huì)出現(xiàn)一個(gè)快捷的過濾選項(xiàng)

@admin.register(Teacher)
class TeacherAdmin(admin.ModelAdmin):
  list_display = ('id', 'name', 'sex', 'dept', 'password', 'email', 'birth')
  list_display_links = ('id', 'name')
  search_fields = ['name', 'dept', 'birth']
  list_filter = ['name','dept']

@admin.register(Question)
class QuestionAdmin(admin.ModelAdmin):
  list_display = ('id','subject','title','optionA','optionB','optionC','optionD','answer','level','score')

def studentLogin(request):
  if request.method=='POST':
    # 獲取表單信息
    stuId=request.POST.get('id')
    password=request.POST.get('password')
    print("id",stuId,"password",password)
    # 通過學(xué)號(hào)獲取該學(xué)生實(shí)體
    student=models.Student.objects.get(id=stuId)
    print(student)
    if password==student.password: #登錄成功
      #查詢考試信息
      paper=models.Paper.objects.filter(major=student.major)
      #查詢成績(jī)信息
      grade=models.Grade.objects.filter(sid=student.id)
      # 渲染index模板
      return render(request,'index.html',{'student':student,'paper':paper,'grade':grade})

    else:return render(request,'index.html',{'message':'密碼不正確'})

   <tr class="table-warning">
    <td>郵箱地址</td>
    <td>{{ student.email }}</td>
   </tr>
   <tr class="table-active">
    <td>出生日期</td>
    <td>{{ student.birth }}</td>
   </tr>

  </tbody>
 </table>
  </div>

  <div id="menu1" class="container tab-pane fade"><br>
   <h3>考試信息</h3>
   <p></p>
    <table class="table">
  <thead>
   <tr>
     <th>學(xué)號(hào)</th>
    <th>姓名</th>
    <th>考試科目</th>
     <th>考試時(shí)間</th>
     <th>操作</th>
   </tr>
  </thead>
  <tbody>
  {#  遍歷字典 paper #}
  {% for paper1 in paper %}
    
   <tr class="table-info">
     <td>{{ student.id }}</td>
     <td>{{ student.name }}</td>
     <td>{{ paper1.subject }}{{ paper2.subject }}</td>
     <td>{{ paper1.examtime }} {{ paper2.examtime }}</td>
     <td>
       <a href="/startExam/?sid={{ student.id }}&subject={{ paper1.subject }}" rel="external nofollow" rel="external nofollow" >
       <button class="btn btn-primary" id="toExam+{{ paper1.subject }}">開始考試</button>
       </a>
     </td>
   </tr>
  {% endfor %}
  
  </tbody>
 </table>
  </div>
  <div id="menu2" class="container tab-pane fade"><br>
   <h3>考試成績(jī)</h3>
   <p></p>
    <table class="table">
    <thead>
     <tr>
      <th>姓名</th>
      <th>科目</th>
      <th>成績(jī)</th>
     </tr>
    </thead>
  <tbody>

  {% for grade1 in grade %}
    <tr class="table-primary">
    <td>{{ student.name }}</td>
    <td>{{ grade1.subject }}</td>
    <td>{{ grade1.grade }}</td>
   </tr>
  {% endfor %}
  </tbody>
 </table>
  </div>
 </div>

def startExam(request):
  sid = request.GET.get('sid')
  subject1=request.GET.get('subject')
  #得到學(xué)生信息
  student=models.Student.objects.get(id=sid)
  #試卷信息
  paper=models.Paper.objects.filter(subject=subject1)
  # print('學(xué)號(hào)',sid,'考試科目',subject1)
  return render(request,'exam.html',{'student':student,'paper':paper,'subject':subject1})

<!DOCTYPE HTML>
<html lang="en">
<head>
  <meta charset="UTF-8">
<meta http-equiv="content-type" content="text/html;charset=UTF-8">
<meta name="viewport" content="width=device-width, initial-scale=1.0" />
<title>在線答題考試系統(tǒng)</title>

  <link href="../static/bootstrap-4.3.1-dist/css/bootstrap.min.css" rel="external nofollow" rel="external nofollow" rel="stylesheet">
  <!-- 必須在引入bootstarp.js之前引入 -->
  <script src="../static/jquery-3.3.1.min.js"></script>

  <script src="../static/bootstrap-4.3.1-dist/js/bootstrap.min.js"></script>

  <script src="../static/js/jquery-1.11.3.min.js"></script>
  <script src="../static/js/jquery.countdown.js"></script>
  <!--時(shí)間js-->
  <link href="../static/css/main.css" rel="external nofollow" rel="stylesheet" type="text/css" />

  <link href="../static/css/test.css" rel="external nofollow" rel="stylesheet" type="text/css" />
<style>
.hasBeenAnswer {
	background: #5d9cec;
	color:#fff;
}
</style>

</head>
<body>

<nav class="navbar navbar-expand-sm bg-light navbar-light ">
  <ul class="navbar-nav">
    <li class="nav-item active">
      <a class="nav-link"><h3>在線考試系統(tǒng)</h3></a>
    </li>

    <li class="nav-item active">
      <a class="nav-link"><h3>當(dāng)前科目:{{ subject }}</h3></a>
    </li>
    <li style="position: fixed;right: 70px; font-size: 30px;color: #9fcdff">{{ student.name }}</li>

  </ul>
</nav>
<div class="main">
	<!--nr start-->
	<div class="test_main">
		<div class="nr_left">
			<div class="test">
				<form action="/calGrade/" method="post">
        <input type="hidden" name="sid" value="{{ student.id }}">
        <input type="hidden" name="subject" value="{{ subject }}">
					<div class="test_title">
						<p class="test_time">
							<i class="icon iconfont">&#xe6fb;</i><b class="alt-1">01:40</b>
						</p>
						<font><input type="submit" name="tijiao" value="交卷"></font>
					</div>

						<div class="test_content">
							<div class="test_content_title">
								<h2>單選題</h2>
								<p>
									<span>共</span><i class="content_lit">10</i><span>題，</span>
                  <span>合計(jì)</span><i class="content_fs">10</i><span>分</span>
								</p>
							</div>
						</div>
						<div class="test_content_nr">
							<ul>
                {% for paper1 in paper %}
                  {% for test in paper1.pid.all %}
                    <li id="{{ forloop.counter }}">
                    <div class="test_content_nr_tt">
											<i>{{ forloop.counter}}</i><span>({{ test.score }}分)</span>
                      <font>{{ test.title }}</font>

										</div>
                    <div class="test_content_nr_main">
											<ul>
													<li class="option">
															<input type="radio" class="radioOrCheck" name="{{ test.id }}"
                              value="A"/>
														<label>A.
                              <p class="ue" style="display: inline;">{{ test.optionA }}</p>
														</label>
													</li>

													<li class="option">
															<input type="radio" class="radioOrCheck" name="{{ test.id }}"
                              value="B"/>
														<label>
															B.<p class="ue" style="display: inline;">{{ test.optionB }}</p>
														</label>
													</li>

													<li class="option">
															<input type="radio" class="radioOrCheck" name="{{ test.id }}"
                              value="C"/>
														<label>
															C.<p class="ue" style="display: inline;">{{ test.optionC }}</p>
														</label>
													</li>

													<li class="option">
															<input type="radio" class="radioOrCheck" name="{{ test.id }}"
                              value="D"/>
														<label>
															D.<p class="ue" style="display: inline;">{{ test.optionD }}</p>
														</label>
													</li>
											</ul>
										</div>
                    </li>
                  {% endfor %}
                {% endfor %}
							</ul>
						</div>
				</form>
			</div>
		</div>

	</div>
	<!--nr end-->
	<div class="foot"></div>
</div>

</body>
</html>

def calGrade(request):

  if request.method=='POST':
    # 得到學(xué)號(hào)和科目
    sid=request.POST.get('sid')
    subject1 = request.POST.get('subject')

    # 重新生成Student實(shí)例，Paper實(shí)例，Grade實(shí)例，名字和index中for的一致，可重復(fù)渲染
    student= models.Student.objects.get(id=sid)
    paper = models.Paper.objects.filter(major=student.major)
    grade = models.Grade.objects.filter(sid=student.id)

    # 計(jì)算該門考試的學(xué)生成績(jī)
    question= models.Paper.objects.filter(subject=subject1).values("pid").values('pid__id','pid__answer','pid__score')

    mygrade=0#初始化一個(gè)成績(jī)?yōu)?
    for p in question:
      qId=str(p['pid__id'])#int 轉(zhuǎn) string,通過pid找到題號(hào)
      myans=request.POST.get(qId)#通過 qid 得到學(xué)生關(guān)于該題的作答
      # print(myans)
      okans=p['pid__answer']#得到正確答案
      # print(okans)
      if myans==okans:#判斷學(xué)生作答與正確答案是否一致
        mygrade+=p['pid__score']#若一致,得到該題的分?jǐn)?shù),累加mygrade變量

    #向Grade表中插入數(shù)據(jù)
    models.Grade.objects.create(sid_id=sid,subject=subject1,grade=mygrade)
    # print(mygrade)
    # 重新渲染index.html模板
    return render(request,'index.html',{'student':student,'paper':paper,'grade':grade})

#教師查看成績(jī)
def showGrade(request):
  subject1=request.GET.get('subject')
  grade=models.Grade.objects.filter(subject=subject1)

  data1 = models.Grade.objects.filter(subject=subject1, grade__lt=60).count()
  data2 = models.Grade.objects.filter(subject=subject1, grade__gte=60, grade__lt=70).count()
  data3 = models.Grade.objects.filter(subject=subject1, grade__gte=70, grade__lt=80).count()
  data4 = models.Grade.objects.filter(subject=subject1, grade__gte=80, grade__lt=90).count()
  data5 = models.Grade.objects.filter(subject=subject1, grade__gte=90).count()

  data = {'data1': data1, 'data2': data2, 'data3': data3, 'data4': data4, 'data5': data5}

  return render(request,'showGrade.html',{'grade':grade,'data':data,'subject':subject1})