Python课设-学生信息管理系统

一、效果展示图

二、前端代码

1、HTML代码

<1>index.html

<!DOCTYPE html>
<html lang="en"><head><meta charset="UTF-8"><meta name="viewport" content="width=device-width, initial-scale=1.0"><meta http-equiv="X-UA-Compatible" content="ie=edge"><title>首页</title><link rel="stylesheet" href="../static/css/style.css"><script src="../static/js/vue.js"></script>
</head><body>
<div id='app' class="container"><img src="../static/img/bg.jpg"/><div class="panel"><div class="content login"><div class="switch"><span :class='{"active": active === "login"}' @click='go("login")'>登陆</span><span>/</span><span :class='{"active": active === "register"}' @click='go("register")'>注册</span></div><div class='form' id="fromLogin"><template v-if='active === "register"'><div class="input"><input :class='{ hasValue: registerForm.email }' v-model='registerForm.email'type="text" name="email" id='email'/><label for="email">邮箱</label></div><div class="input"><input :class='{ hasValue: registerForm.Username }'v-model='registerForm.Username' type="text" name="Username"id="username"/><label for="username">用户名</label></div><div class="input"><input :class='{ hasValue: registerForm.Password }'v-model='registerForm.Password' type="password" name="Password"id="Password"/><label for="Password">密码</label></div><div class="input"><input :class='{ hasValue: registerForm.repeat }' v-model='registerForm.repeat'type="password" name="repeat" id="Passwordrepeat"/><labelfor="Passwordrepeat">重复密码</label></div><span>忘记?</span><button type="submit" @click='submitRegister'>注册</button></template><template v-if='active === "login"'><div class="input"><input :class='{ hasValue: loginForm.Username }' v-model='loginForm.Username'type="text" name="Username" id="username"/><labelfor="username">用户名</label></div><div class="input"><input :class='{ hasValue: loginForm.Password }' v-model='loginForm.Password'type="password" name="Password" id="Password"/><labelfor="Password">密码</label></div><span>忘记?</span><button type="submit" @click='submitLogin'>登陆</button></template></div></div></div>
</div><script>var vue = new Vue({el: '#app',data: {active: 'login',registerForm: { email: '', Username: '', Password: '', repeat: '' },loginForm: { Username: '', Password: '' },},methods: {go(type) {this.active = type;},<!-- 在 submitLogin 方法中 -->
async submitLogin() {try {const response = await fetch('/login', {method: 'POST',headers: {'Content-Type': 'application/json',},body: JSON.stringify(this.loginForm),});const data = await response.json();console.log('服务器响应:', data);if (data.success) {// 登录成功，重定向到 hall.htmlwindow.location.href = './hall';} else {// 登录失败，显示错误信息this.errorMessage = '用户名或密码错误';}} catch (error) {console.error('登录时发生错误:', error);}
},async submitRegister() {try {const response = await fetch('/register', {method: 'POST',headers: {'Content-Type': 'application/json',},body: JSON.stringify(this.registerForm),});const data = await response.json();console.log('服务器响应:', data);// 根据服务器响应处理逻辑} catch (error) {console.error('注册时发生错误:', error);}},},});</script></body></html>

<2>hall.html

<!DOCTYPE html>
<html lang="en">
<head><meta charset="UTF-8"><meta name="viewport" content="width=device-width, initial-scale=1.0"><title>功能大厅</title><style>body {font-family: Arial, sans-serif;background-color: #f4f4f4;margin: 0;padding: 0;display: flex;justify-content: center;align-items: center;height: 100vh;}.container {text-align: center;}.button {display: inline-block;padding: 15px 30px;font-size: 16px;font-weight: bold;text-decoration: none;color: #fff;background-color: #3498db;border-radius: 5px;margin: 10px;transition: background-color 0.3s;}.button:hover {background-color: #2980b9;}</style>
</head>
<body><div class="container"><h1>学生成绩管理系统</h1><a href="./gradeList" class="button" id="gradeManagementBtn">成绩管理</a><a href="./sa" class="button" id="subjectAnalysisBtn">学科分析</a></div>
</body>
</html>

<3>sa.html

<!DOCTYPE html>
<html lang="en">
<head><meta charset="UTF-8"><meta name="viewport" content="width=device-width, initial-scale=1.0"><title>学科分析</title><!-- 引入 layui --><link rel="stylesheet" href="https://www.layuicdn.com/layui/css/layui.css"><script src="https://www.layuicdn.com/layui/layui.js"></script><!-- 引入 Chart.js 库 --><script src="https://cdn.jsdelivr.net/npm/chart.js"></script><!-- 引入 jQuery --><script src="../static/plugins/jquery-3.7.1.min.js"></script><!-- 引入基本表格插件 --><script type="text/javascript" src="../static/js/jquery.basictable.min.js"></script><!-- 引入响应式表格插件 --><script type="text/javascript" src="../static/js/reponsetable.min.js"></script><!-- 引入 layer 插件 --><script type="text/javascript" src="../static/plugins/layer/layer.js"></script><!-- 引入 layer 默认主题样式 --><link rel="stylesheet" type="text/css" href="../static/plugins/layer/theme/default/layer.css"><!-- 引入自定义 CSS 样式 --><link rel="stylesheet" type="text/css" href="../static/css/reponse.css"><link rel="stylesheet" type="text/css" href="../static/css/lib/bootstrap.min.css"><link rel="stylesheet" type="text/css" href="../static/css/custom.css"><style type="text/css">/* 新增的样式 */body {font-family: 'Arial', sans-serif;margin: 20px;}h1 {color: #333;}table {width: 100%;border-collapse: collapse;margin-top: 20px;}th, td {padding: 10px;border: 1px solid #ddd;text-align: center;}th {background-color: #f2f2f2;}tr:hover {background-color: #f5f5f5;}.layui-layer {background: #fff;}</style>
</head>
<body><h1>学科分析</h1><!-- 基本表格样式 -->
<table class="layui-table"><thead><tr><th></th><th>成绩1</th><th>成绩2</th><th>成绩3</th><th>成绩4</th><th>成绩5</th><th>成绩6</th></tr></thead><tbody>{% for student in students %}{% endfor %}<tr><td>最高分</td><td>{{ max_grades.g1 }}</td><td>{{ max_grades.g2 }}</td><td>{{ max_grades.g3 }}</td><td>{{ max_grades.g4 }}</td><td>{{ max_grades.g5 }}</td><td>{{ max_grades.g6 }}</td></tr><tr><td>最低分</td><td>{{ min_grades.g1 }}</td><td>{{ min_grades.g2 }}</td><td>{{ min_grades.g3 }}</td><td>{{ min_grades.g4 }}</td><td>{{ min_grades.g5 }}</td><td>{{ min_grades.g6 }}</td></tr><tr><td>平均分</td><td>{{ avg_grades.g1 }}</td><td>{{ avg_grades.g2 }}</td><td>{{ avg_grades.g3 }}</td><td>{{ avg_grades.g4 }}</td><td>{{ avg_grades.g5 }}</td><td>{{ avg_grades.g6 }}</td></tr></tbody>
</table></body>
</html>

<4>gradeList.html

<!DOCTYPE html>
<html lang="en">
<head><meta charset="UTF-8"><meta name="viewport" content="width=device-width, initial-scale=1.0"><title>学生信息管理</title><link rel="stylesheet" href="https://www.layuicdn.com/layui/css/layui.css"><script src="https://www.layuicdn.com/layui/layui.js"></script><!-- 引入 Chart.js 库 --><script src="https://cdn.jsdelivr.net/npm/chart.js"></script><script src="../static/plugins/jquery-3.7.1.min.js"></script><script type="text/javascript" src="../static/js/jquery.basictable.min.js"></script><script type="text/javascript" src="../static/js/reponsetable.min.js"></script><script type="text/javascript" src="../static/plugins/layer/layer.js"></script><link rel="stylesheet" type="text/css" href="../static/plugins/layer/theme/default/layer.css"><link rel="stylesheet" type="text/css" href="../static/css/reponse.css"><link rel="stylesheet" type="text/css" href="../static/css/lib/bootstrap.min.css"><link rel="stylesheet" type="text/css" href="../static/css/custom.css"><style type="text/css">.alertceng {background: #FFFFFF;padding: 10px;display: none;}.alertceng span.title {margin-right: 10px;}</style>
</head>
<body>
<div class="layui-fluid layadmin-homepage-fluid" style="background: #fff;width:90%;margin:0 auto;"><div id="page"><h1>学生成绩信息管理</h1><table id="table" class="reponsetable"></table><script type="text/html" id="editer"><a class="layui-btn layui-btn-xs" onclick="scatterPlot(this)">散点图</a><a class="layui-btn layui-btn-xs" onclick="radarChart(this)">雷达图</a><a class="layui-btn layui-btn-xs" onclick="careerPlan(this)">职业规划</a><a class="layui-btn layui-btn-xs" onclick="edittr(this)">修改</a><a class="layui-btn layui-btn-xs" onclick="deleteRecord(this)">删除</a></script><div class="btn-container"><button class="layui-btn" onclick="addNew();">新增信息</button></div></div>
</div>
<div id="editcontent" class="alertceng"><p><span class="title">姓名:</span><input type="text" id="name"/></p><p><span class="title">成绩1:</span><input type="text" id="g1"/></p><p><span class="title">成绩2:</span><input type="text" id="g2"/></p><p><span class="title">成绩3:</span><input type="text" id="g3"/></p><p><span class="title">成绩4:</span><input type="text" id="g4"/></p><p><span class="title">成绩5:</span><input type="text" id="g5"/></p><p><span class="title">成绩6:</span><input type="text" id="g6"/></p><button id="saveBtn">保存</button><button id="cancelBtn">取消</button>
</div><script type="text/javascript">$(document).ready(function () {// 使用后端传递的数据fetch("/get_student_data").then(response => response.json()).then(data => {// 获取从后端获取的学生信息数据var studentData = data.data;// 原始数据，json构建$('#table').basictable({breakpoint: 768});// 使用后端传递的数据$("#table").reponsetable({"id": "table","operation": "editer","type": "numbers","colum": [{"field": "name", "title": "姓名"},{"field": "g1", "title": "成绩1"},{"field": "g2", "title": "成绩2"},{"field": "g3", "title": "成绩3"},{"field": "g4", "title": "成绩4"},{"field": "g5", "title": "成绩5"},{"field": "g6", "title": "成绩6"}],"data": studentData  // 使用后端传递的数据});// 定义按钮事件layui.use('layer', function () {layer = layui.layer;});}).catch(error => console.error('获取学生信息数据时发生错误:', error));// 显示表单window.addNew = function () {$('#editcontent').show();}// 保存按钮点击事件$('#saveBtn').on('click', function () {// 保存操作var newData = {"name": $("#name").val(),"g1": $("#g1").val(),"g2": $("#g2").val(),"g3": $("#g3").val(),"g4": $("#g4").val(),"g5": $("#g5").val(),"g6": $("#g6").val()};// 发送异步请求保存到数据库$.ajax({type: 'POST',url: '/saveDataToDatabase',data: JSON.stringify(newData),contentType: 'application/json',success: function (response) {// 处理保存成功的逻辑if (response.success) {// 这里可以根据实际情况做一些提示或者刷新表格等操作console.log('数据保存成功');// 隐藏表单$('#editcontent').hide();// 清空输入框$('#editcontent input').val('');// 刷新表格数据refreshTable();} else {console.error('数据保存失败');}},error: function (error) {console.error('保存数据时发生错误:', error);}});});// 取消按钮点击事件$('#cancelBtn').on('click', function () {// 隐藏表单$('#editcontent').hide();// 清空输入框$('#editcontent input').val('');});// 定义刷新表格数据的函数function refreshTable() {fetch("/get_student_data").then(response => response.json()).then(data => {// 获取从后端获取的学生信息数据var studentData = data.data;$("#table").reponsetable("setData", studentData);}).catch(error => console.error('获取学生信息数据时发生错误:', error));}// 散点图按钮点击事件function scatterPlot(obj) {// 散点图按钮点击事件处理逻辑// ...}// 雷达图按钮点击事件function radarChart(obj) {// 雷达图按钮点击事件处理逻辑// ...}// 职业规划按钮点击事件function careerPlan(obj) {// 职业规划按钮点击事件处理逻辑// ...}//删除// 删除按钮点击事件
window.deleteRecord = function (obj) {var currentRowData = getCurrentRowData(obj);// 发送删除请求$.ajax({type: 'POST',url: '/deleteRecord',data: JSON.stringify(currentRowData),contentType: 'application/json',success: function (response) {if (response.success) {console.log('数据删除成功');// 刷新表格数据refreshTable();} else {console.error('数据删除失败');}},error: function (error) {console.error('删除数据时发生错误:', error);}});
}// 获取当前行的学生信息
function getCurrentRowData(obj) {var currentRow = $(obj).closest('tr');var rowData = {name: currentRow.find('td[data-field="name"]').text(),g1: currentRow.find('td[data-field="g1"]').text(),g2: currentRow.find('td[data-field="g2"]').text(),// 添加其他成绩项};return rowData;
}// 修改按钮点击事件window.edittr=function (obj) {// 获取当前行的数据// 获取当前行的数据var currentRowData = getCurrentRowData(obj);// 将数据填充到表单中$('#name').val(currentRowData.name).prop('readonly', true); // 设置为只读$('#g1').val(currentRowData.g1);$('#g2').val(currentRowData.g2);$('#g3').val(currentRowData.g3);$('#g4').val(currentRowData.g4);$('#g5').val(currentRowData.g5);$('#g6').val(currentRowData.g6);// 显示表单$('#editcontent').show();}// 保存按钮点击事件
$('#saveBtn').on('click', function () {// 保存操作var newData = {"name": $("#name").val(),"g1": $("#g1").val(),"g2": $("#g2").val(),"g3": $("#g3").val(),"g4": $("#g4").val(),"g5": $("#g5").val(),"g6": $("#g6").val()};// 发送异步请求保存到数据库$.ajax({type: 'POST',url: '/updateRecord',  // 修改为更新路由data: JSON.stringify(newData),contentType: 'application/json',success: function (response) {// 处理更新成功的逻辑if (response.success) {console.log('数据更新成功');// 隐藏表单$('#editcontent').hide();// 清空输入框$('#editcontent input').val('');// 刷新表格数据refreshTable();} else {console.error('数据更新失败');}},error: function (error) {console.error('更新数据时发生错误:', error);}});
});//散点图window.scatterPlot=function (obj) {// 获取当前行的数据// 获取当前行的数据var currentRowData = getCurrentRowData(obj);// 构建散点图数据var scatterChartData = {datasets: [{label: '散点图',data: [{x: '成绩1',y: currentRowData.g1}, {x: '成绩2',y: currentRowData.g2}, {x: '成绩3',y: currentRowData.g3}, {x: '成绩4',y: currentRowData.g4}, {x: '成绩5',y: currentRowData.g5}, {x: '成绩6',y: currentRowData.g6}],backgroundColor: 'rgba(255, 99, 132, 1)' // 颜色}]};// 创建 canvas 元素var canvas = document.createElement('canvas');canvas.width = 400; // 设置宽度canvas.height = 400; // 设置高度// 将 canvas 元素添加到页面document.body.appendChild(canvas);// 创建散点图var ctx = canvas.getContext('2d');new Chart(ctx, {type: 'scatter',data: scatterChartData,options: {responsive: false,scales: {x: {type: 'category', // 设置 x 轴类型为分类labels: ['成绩1', '成绩2', '成绩3', '成绩4', '成绩5', '成绩6'],position: 'bottom'},y: {type: 'linear',position: 'left'}}}});}// 获取当前行的学生信息function getCurrentRowData(obj) {var currentRow = obj.closest('tr');var rowData = {name: currentRow.querySelector('td[data-field="name"]').textContent,g1: parseFloat(currentRow.querySelector('td[data-field="g1"]').textContent),g2: parseFloat(currentRow.querySelector('td[data-field="g2"]').textContent),g3: parseFloat(currentRow.querySelector('td[data-field="g3"]').textContent),g4: parseFloat(currentRow.querySelector('td[data-field="g4"]').textContent),g5: parseFloat(currentRow.querySelector('td[data-field="g5"]').textContent),g6: parseFloat(currentRow.querySelector('td[data-field="g6"]').textContent)};return rowData;}//雷达图window.radarChart=function (obj) {// 获取当前行的数据var currentRowData = getCurrentRowData(obj);// 构建雷达图数据var radarChartData = {labels: ['成绩1', '成绩2', '成绩3', '成绩4', '成绩5', '成绩6'],datasets: [{label: '雷达图',data: [currentRowData.g1, currentRowData.g2, currentRowData.g3, currentRowData.g4, currentRowData.g5, currentRowData.g6],backgroundColor: 'rgba(75, 192, 192, 0.2)', // 填充颜色borderColor: 'rgba(75, 192, 192, 1)', // 边框颜色borderWidth: 1 // 边框宽度}]};// 创建 canvas 元素var canvas = document.createElement('canvas');canvas.width = 400; // 设置宽度canvas.height = 400; // 设置高度// 将 canvas 元素添加到页面document.body.appendChild(canvas);// 创建雷达图var ctx = canvas.getContext('2d');new Chart(ctx, {type: 'radar',data: radarChartData,options: {responsive: false,scales: {r: {beginAtZero: true}}}});}// 获取当前行的学生信息function getCurrentRowData(obj) {var currentRow = obj.closest('tr');var rowData = {name: currentRow.querySelector('td[data-field="name"]').textContent,g1: parseFloat(currentRow.querySelector('td[data-field="g1"]').textContent),g2: parseFloat(currentRow.querySelector('td[data-field="g2"]').textContent),g3: parseFloat(currentRow.querySelector('td[data-field="g3"]').textContent),g4: parseFloat(currentRow.querySelector('td[data-field="g4"]').textContent),g5: parseFloat(currentRow.querySelector('td[data-field="g5"]').textContent),g6: parseFloat(currentRow.querySelector('td[data-field="g6"]').textContent)};return rowData;}//职业规划// 职业规划按钮点击事件
window.careerPlan=function (obj) {// 获取当前行的数据var currentRowData = getCurrentRowData(obj);// 向后端发送请求，获取职业规划结果$.ajax({type: 'POST',url: '/careerPlan',data: JSON.stringify({ g6: currentRowData.g6 }),contentType: 'application/json',success: function (response) {if (response.success) {// 显示职业规划结果showCareerPlanDialog(response.message);} else {console.error('获取职业规划结果失败');}},error: function (error) {console.error('获取职业规划结果时发生错误:', error);}});
}// 显示职业规划结果的对话框
function showCareerPlanDialog(message) {layer.open({title: '职业规划结果',content: message,btn: ['确定'],yes: function (index, layero) {// 点击确定按钮的回调，可以根据需要添加其他操作layer.close(index);}});
}});
</script>
</body>
</html>

2、其他前端代码略

三、后端代码

from flask import Flask, render_template, request, jsonify
import pymysql
from flask_cors import CORSapp = Flask(__name__)
CORS(app)# MySQL数据库连接配置
DATABASE_CONFIG = {'host': '127.0.0.1','user': 'root','password': 'Your_Password','database': 'pythonweb','cursorclass': pymysql.cursors.DictCursor,
}# 创建MySQL连接
def create_connection():return pymysql.connect(**DATABASE_CONFIG)# 创建users表（如果不存在）
def create_table():conn = create_connection()cursor = conn.cursor()cursor.execute('''CREATE TABLE IF NOT EXISTS users (id INT AUTO_INCREMENT PRIMARY KEY,username VARCHAR(255) NOT NULL,password VARCHAR(255) NOT NULL)''')conn.commit()conn.close()# 创建表格（如果不存在）
create_table()@app.route("/")
def index():return render_template("index.html")@app.route("/login", methods=['POST'])
def login():data = request.jsonusername = data.get('Username')password = data.get('Password')# 在这里执行与数据库的交互逻辑，检查用户名和密码是否匹配user = get_user(username, password)# 在登录成功时返回一个 success 字段if user:return jsonify({'success': True, 'message': '登录成功'})else:return jsonify({'success': False, 'message': '无效的用户名或密码'}), 401def get_user(username, password):conn = create_connection()cursor = conn.cursor()cursor.execute('SELECT * FROM users WHERE username = %s AND password = %s', (username, password))   #参数化查询，避免sql注入user = cursor.fetchone()    #将查询结果这一行数据赋值给user变量，如果未查询到则为空conn.close()return user                 #返回查询得到的数据# 创建grades表（如果不存在）
def create_grades_table():conn = create_connection()cursor = conn.cursor()cursor.execute('''create table if not exists grade(name varchar(255) not null,g1 int not null ,g2 int not null ,g3 int not null ,g4 int not null ,g5 int not null ,g6 int not null)''')conn.commit()conn.close()# 创建表格（如果不存在）
create_grades_table()# 路由用于保存数据到数据库
@app.route("/saveDataToDatabase", methods=['POST'])
def save_data_to_database():data = request.jsonname = data.get('name')g1 = data.get('g1')g2 = data.get('g2')g3 = data.get('g3')g4 = data.get('g4')g5 = data.get('g5')g6 = data.get('g6')# 在这里执行与数据库的交互逻辑，将数据保存到数据库success = save_data_to_db(name, g1, g2, g3, g4, g5, g6)# 响应if success:return jsonify({'success': True, 'message': '数据保存成功'})else:return jsonify({'success': False, 'message': '数据保存失败'}), 500def save_data_to_db(name, g1, g2, g3, g4, g5, g6):try:conn = create_connection()cursor = conn.cursor()cursor.execute('INSERT INTO grade (name, g1, g2, g3, g4, g5, g6) VALUES (%s, %s, %s, %s, %s, %s, %s)',(name, g1, g2, g3, g4, g5, g6))conn.commit()conn.close()return Trueexcept Exception as e:print(f"Error saving data to database: {e}")return False# 跳转hall.html界面的路由函数
@app.route("/hall")
def hall():return render_template("hall.html")# 跳转gradeList.html界面的路由函数
@app.route("/gradeList")
def gL():return render_template("gradeList.html")@app.route("/get_student_data")
def get_student_data():conn = create_connection()cursor = conn.cursor()cursor.execute('SELECT name, g1, g2, g3, g4, g5, g6 FROM grade')student_data = cursor.fetchall()conn.close()return jsonify({"data": student_data})# 删除路由
# 路由用于删除数据
@app.route("/deleteRecord", methods=['POST'])
def delete_record():data = request.jsonname = data.get('name')g1 = data.get('g1')g2 = data.get('g2')# 添加其他成绩项# 在这里执行与数据库的交互逻辑，将数据从数据库中删除success = delete_record_from_db(name, g1, g2)# 响应if success:return jsonify({'success': True, 'message': '数据删除成功'})else:return jsonify({'success': False, 'message': '数据删除失败'}), 500def delete_record_from_db(name, g1, g2):try:conn = create_connection()cursor = conn.cursor()cursor.execute('DELETE FROM grade WHERE name = %s AND g1 = %s AND g2 = %s',(name, g1, g2))conn.commit()conn.close()return Trueexcept Exception as e:print(f"Error deleting data from database: {e}")return False# 路由用于更新数据
@app.route("/updateRecord", methods=['POST'])
def update_record():data = request.jsonname = data.get('name')g1 = data.get('g1')g2 = data.get('g2')g3 = data.get('g3')g4 = data.get('g4')g5 = data.get('g5')g6 = data.get('g6')# 在这里执行与数据库的交互逻辑，将数据更新到数据库success = update_record_in_db(name, g1, g2, g3, g4, g5, g6)# 响应if success:return jsonify({'success': True, 'message': '数据更新成功'})else:return jsonify({'success': False, 'message': '数据更新失败'}), 500def update_record_in_db(name, g1, g2, g3, g4, g5, g6):try:conn = create_connection()cursor = conn.cursor()cursor.execute('UPDATE grade SET g1=%s, g2=%s, g3=%s, g4=%s, g5=%s, g6=%s WHERE name=%s',(g1, g2, g3, g4, g5, g6, name))conn.commit()conn.close()return Trueexcept Exception as e:print(f"Error updating data in database: {e}")return False# 路由用于职业规划
@app.route("/careerPlan", methods=['POST'])
def career_plan():data = request.jsong6 = data.get('g6')# 根据成绩6进行职业规划career = plan_career(int(g6))# 响应return jsonify({'success': True, 'message': career})# 根据成绩6进行职业规划
def plan_career(g6):if g6 > 100:return '黑客'elif 80 <= g6 <= 100:return '算法设计师'elif 60 <= g6 < 80:return '运维工程师'elif 40 <= g6 < 60:return '电脑维修工'else:return '板砖'@app.route("/sa")
def sa():conn = create_connection()cursor = conn.cursor()cursor.execute('SELECT name, g1, g2, g3, g4, g5, g6 FROM grade')students = cursor.fetchall()# 计算最高分、最低分和平均分max_grades = {'g1': max(student['g1'] for student in students),'g2': max(student['g2'] for student in students),'g3': max(student['g3'] for student in students),'g4': max(student['g4'] for student in students),'g5': max(student['g5'] for student in students),'g6': max(student['g6'] for student in students)}min_grades = {'g1': min(student['g1'] for student in students),'g2': min(student['g2'] for student in students),'g3': min(student['g3'] for student in students),'g4': min(student['g4'] for student in students),'g5': min(student['g5'] for student in students),'g6': min(student['g6'] for student in students)}avg_grades = {'g1': sum(student['g1'] for student in students) / len(students),'g2': sum(student['g2'] for student in students) / len(students),'g3': sum(student['g3'] for student in students) / len(students),'g4': sum(student['g4'] for student in students) / len(students),'g5': sum(student['g5'] for student in students) / len(students),'g6': sum(student['g6'] for student in students) / len(students)}conn.close()return render_template("sa.html", students=students, max_grades=max_grades, min_grades=min_grades,avg_grades=avg_grades)if __name__ == '__main__':app.run(debug=True)