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school system/__pycache__/app.cpython-310.pyc
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school system/__pycache__/app.cpython-310.pyc
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school system/app.py
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school system/app.py
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from flask import Flask, request, redirect,render_template
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from flask_sqlalchemy import SQLAlchemy
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app = Flask(__name__)
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app.config['SQLALCHEMY_DATABASE_URI'] = "mysql+pymysql://db_experiment3:12345@192.168.15.179/db_experiment3"
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app.config['SQLALCHEMY_TRACK_MODIFICATIONS'] = False
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db = SQLAlchemy(app)
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class Student(db.Model):
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sno = db.Column(db.String(10), primary_key=True)
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sname = db.Column(db.String(20))
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ssex = db.Column(db.String(4))
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sage = db.Column(db.Integer)
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pwd = db.Column(db.String(20))
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class Teacher(db.Model):
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tno = db.Column(db.String(7), primary_key=True)
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tname = db.Column(db.String(20))
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tposition = db.Column(db.String(3))
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tsalary = db.Column(db.Integer)
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pwd = db.Column(db.String(20))
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class Course(db.Model):
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cno = db.Column(db.String(4), primary_key=True)
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cname = db.Column(db.String(40))
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tno = db.Column(db.String(7))
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ccredit = db.Column(db.Integer)
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class SC(db.Model):
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cno = db.Column(db.String(4),db.ForeignKey('course.cno'), primary_key=True)
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sno = db.Column(db.String(10),db.ForeignKey('student.sno'), primary_key=True)
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grade = db.Column(db.Integer)
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tno = db.Column(db.String(7))
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class Admin(db.Model):
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ano = db.Column(db.String(10), primary_key=True)
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pwd = db.Column(db.String(20))
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@app.route('/login', methods=['GET', 'POST'])
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def login():
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if request.method == "GET":
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return render_template('login.html')
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else:
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if request.form['login-method'] == 'student':
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to_login = db.session.query(Student).get(request.form['account'])
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if to_login is None:
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return "没有此用户"
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if to_login.pwd == request.form['password']:
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print(to_login.sno + "登录成功")
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return redirect('/'+request.form['login-method']+'/'+request.form['account'])
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else:
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print(to_login.sno + "密码错误")
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return "密码错误"
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elif request.form['login-method'] == 'teacher':
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to_login = db.session.query(Teacher).get(request.form['account'])
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if to_login is None:
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return "没有此用户"
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if to_login.pwd == request.form['password']:
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print(to_login.tno + "登录成功")
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return redirect('/'+request.form['login-method']+'/'+request.form['account'])
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else:
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print(to_login.tno + "密码错误")
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return "密码错误"
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elif request.form['login-method'] == 'admin':
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to_login = db.session.query(Admin).get(request.form['account'])
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if to_login is None:
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return "没有此用户"
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if to_login.pwd == request.form['password']:
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print(to_login.ano + "登录成功")
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return redirect('/'+request.form['login-method']+'/'+request.form['account'])
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else:
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print(to_login.ano + "密码错误")
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return "密码错误"
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@app.route('/student/<sno>', methods=['GET', 'POST'])
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def student(sno):
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user_info = db.session.query(Student).get(sno)
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user_course = db.session.query(SC,Course).join(SC,SC.cno == Course.cno).filter(SC.sno == sno).all()
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course_list = db.session.query(Course).all()
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credit_sum = sum([x[1].ccredit for x in user_course])
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temp = [user_course[x][1] for x in range(len(user_course))]
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selectable_course = [x for x in course_list if x not in [user_course[x][1] for x in range(len(user_course))]]
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if request.method == 'GET':
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return render_template('student.html',
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username = user_info.sname,usergender = user_info.ssex,userage = user_info.sage,
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usercourse = user_course,totalcredit = credit_sum,
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selectablecourse = selectable_course)
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if request.method == 'POST':
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if request.form['type'] == 'changeinfo':
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if user_info:
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user_info.sname = request.form['name']
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user_info.ssex = request.form['gender']
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user_info.sage = request.form['age']
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if request.form['password'] != "":
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user_info.pwd = request.form['password']
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db.session.commit()
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return "个人信息修改完毕"
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elif request.form['type'] == 'courseselection':
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to_select = next(filter(lambda x: x.cno == request.form['course'],selectable_course))
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to_submit = SC(cno = request.form['course'],sno = sno,tno = to_select.tno,grade = 0)
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db.session.add(to_submit)
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db.session.commit()
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return "选课成功"
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@app.route('/admin/<ano>', methods=['GET', 'POST'])
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def admin(ano):
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student_list = db.session.query(Student,db.func.coalesce(db.func.sum(Course.ccredit),0)).\
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join(SC,Student.sno == SC.sno, isouter=True).join(Course,SC.cno == Course.cno, isouter=True).group_by(Student.sno).all()
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teacher_list = db.session.query(Teacher).all()
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teacher_position_list = db.session.query(Teacher.tposition,db.func.avg(Teacher.tsalary),db.func.count(Teacher.tno)).\
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group_by(Teacher.tposition).all()
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course_list = db.session.query(Course,db.func.max(SC.grade),db.func.min(SC.grade),db.func.avg(SC.grade)).\
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join(SC,Course.cno == SC.cno).group_by(Course.cno).all()
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sc_list = db.session.query(SC).group_by(SC.cno).all()
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if request.method == 'GET':
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return render_template("admin.html",studentlist=student_list,
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teacherlist=teacher_list,
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salary=teacher_position_list,
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courselist=course_list,
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sclist=sc_list)
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if request.method == 'POST':
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if request.form['type'] == 'changestudent':
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student = db.session.query(Student).get(request.form['sno'])
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student.sname = request.form['sname']
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student.sage = request.form['sage']
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student.pwd = request.form['pwd']
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student.ssex = request.form['ssex']
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db.session.commit()
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return "修改学生信息成功"
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elif request.form['type'] == 'addstudent':
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db.session.add(Student(sno = request.form['sno'],
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sname=request.form['sname'],
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sage = request.form['sage'],
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pwd = request.form['pwd'],
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ssex=request.form['ssex']
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))
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db.session.commit()
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return "添加学生成功"
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elif request.form['type'] == 'deletestudent':
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db.session.delete(Student.query.get(request.form['sno']))
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db.session.commit()
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return "学生已删除"
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elif request.form['type'] == 'changeteacher':
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teacher = db.session.query(Teacher).get(request.form['tno'])
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teacher.tname = request.form['tname']
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teacher.tposition = request.form['tposition']
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teacher.pwd = request.form['pwd']
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teacher.tsalary = request.form['tsalary']
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db.session.commit()
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return "修改教师信息成功"
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elif request.form['type'] == 'addteacher':
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db.session.add(Teacher(tno = request.form['tno'],
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tname=request.form['tname'],
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tposition = request.form['tposition'],
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pwd = request.form['pwd'],
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tsalary=request.form['tsalary']
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))
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db.session.commit()
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return "添加教师成功"
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elif request.form['type'] == 'deleteteacher':
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db.session.delete(Teacher.query.get(request.form['tno']))
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db.session.commit()
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return "教师已删除"
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elif request.form['type'] == 'changesc':
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sc = db.session.query(SC).filter_by(sno=request.form['sno'],cno=request.form['cno']).first()
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sc.grade = request.form['grade']
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db.session.commit()
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return "成绩修改成功"
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elif request.form['type'] == 'addsc':
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db.session.add(SC(cno = request.form['cno'],
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sno=request.form['sno'],
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grade = request.form['grade']
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))
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db.session.commit()
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return "选课信息添加成功"
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elif request.form['type'] == 'deletesc':
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db.session.delete(Teacher.query().filter_by(sno=request.form['sno'],cno=request.form['cno']).first())
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db.session.commit()
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return "选课信息已删除"
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@app.errorhandler(404)
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def page_not_found(e):
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return redirect('/login')
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with app.app_context():
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db.engine.connect()
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if __name__ == '__main__':
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app.run()
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school system/templates/admin.html
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school system/templates/admin.html
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<!DOCTYPE html>
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<html lang="en">
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<head>
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<meta charset="UTF-8">
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<title>管理员系统</title>
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</head>
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<body>
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<h2>数据库实验-管理员系统</h2>
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<br>
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<h3>学生信息修改</h3>
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<table>
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<thead>
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<tr>
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<th>学号</th>
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<th>姓名</th>
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<th>性别</th>
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<th>年龄</th>
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<th>密码</th>
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<th>总学分</th>
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<th>提交修改</th>
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<th>删除学生</th>
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</tr>
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</thead>
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<tbody>
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{% for i in studentlist %}
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<tr>
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<form action="" method="post">
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<th>
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{{ i[0].sno }}<input name="sno" type="hidden" value="{{ i[0].sno }}">
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</th>
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<th>
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<input name="sname" type="text" value="{{ i[0].sname }}">
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</th>
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<th>
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{% if i[0].ssex == '男' %}
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<select name="ssex">
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<option value="男" selected>男</option>
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<option value="女">女</option>
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</select>
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{% else %}
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<select name="ssex">
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<option value="男">男</option>
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<option value="女" selected>女</option>
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</select>
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{% endif %}
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</th>
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<th>
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<input name="sage" type="text" value="{{ i[0].sage }}">
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</th>
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<th>
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<input name="pwd" type="text" value="{{ i[0].pwd }}">
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</th>
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<th>
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{{ i[1] }}
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</th>
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<th>
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<button type="submit" name="type" value="changestudent">提交修改</button>
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</th>
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<th>
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<button type="submit" name="type" value="deletestudent">删除学生</button>
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</th>
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</form>
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</tr>
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{% endfor %}
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<tr>
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<form action="" method="post">
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<input name="type" type="hidden" value="addstudent">
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<th>
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<input name="sno" type="text">
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</th>
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<th>
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<input name="sname" type="text">
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</th>
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<th>
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<select name="ssex">
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<option value="男">男</option>
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<option value="女">女</option>
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</select>
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</th>
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<th>
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<input name="sage" type="text">
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</th>
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<th>
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<input name="pwd" type="text">
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</th>
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<th>
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<button type="submit">添加学生</button>
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</th>
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</form>
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</tr>
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</tbody>
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</table>
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<br>
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<h3>教师信息修改</h3>
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<table>
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<thead>
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<tr>
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<th>教师号</th>
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<th>姓名</th>
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<th>职称</th>
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<th>工资</th>
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<th>密码</th>
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<th>提交修改</th>
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<th>删除教师</th>
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</tr>
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</thead>
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||||||
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<tbody>
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{% for i in teacherlist %}
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<tr>
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<form action="" method="post">
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<th>
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{{ i.tno }}<input name="tno" type="hidden" value="{{ i.tno }}">
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||||||
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</th>
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||||||
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<th>
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||||||
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<input name="tname" type="text" value="{{ i.tname }}">
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</th>
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<th>
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<input name="tposition" type="text" value="{{ i.tposition }}">
|
||||||
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</th>
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<th>
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||||||
|
<input name="tsalary" type="text" value="{{ i.tsalary }}">
|
||||||
|
</th>
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||||||
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<th>
|
||||||
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<input name="pwd" type="text" value="{{ i.pwd }}">
|
||||||
|
</th>
|
||||||
|
<th>
|
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<button type="submit" name="type" value="changeteacher">提交修改</button>
|
||||||
|
</th>
|
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<th>
|
||||||
|
<button type="submit" name="type" value="deleteteacher">删除教师</button>
|
||||||
|
</th>
|
||||||
|
</form>
|
||||||
|
</tr>
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||||||
|
{% endfor %}
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|
<tr>
|
||||||
|
<form action="" method="post">
|
||||||
|
<input name="type" type="hidden" value="addteacher">
|
||||||
|
<th>
|
||||||
|
<input name="tno" type="text">
|
||||||
|
</th>
|
||||||
|
<th>
|
||||||
|
<input name="tname" type="text">
|
||||||
|
</th>
|
||||||
|
<th>
|
||||||
|
<input name="tposition" type="text">
|
||||||
|
</th>
|
||||||
|
<th>
|
||||||
|
<input name="tsalary" type="text">
|
||||||
|
</th>
|
||||||
|
<th>
|
||||||
|
<input name="pwd" type="text">
|
||||||
|
</th>
|
||||||
|
<th>
|
||||||
|
<button type="submit">添加教师</button>
|
||||||
|
</th>
|
||||||
|
</form>
|
||||||
|
</tr>
|
||||||
|
</tbody>
|
||||||
|
</table>
|
||||||
|
<br>
|
||||||
|
|
||||||
|
<h3>教师信息统计</h3>
|
||||||
|
<table>
|
||||||
|
<thead>
|
||||||
|
<tr>
|
||||||
|
<th>职称</th>
|
||||||
|
<th>平均工资</th>
|
||||||
|
<th>人数</th>
|
||||||
|
</tr>
|
||||||
|
</thead>
|
||||||
|
<tbody>
|
||||||
|
{% for i in salary %}
|
||||||
|
<tr>
|
||||||
|
<th>
|
||||||
|
{{ i[0] }}
|
||||||
|
</th>
|
||||||
|
<th>
|
||||||
|
{{ i[1] }}
|
||||||
|
</th>
|
||||||
|
<th>
|
||||||
|
{{ i[2] }}
|
||||||
|
</th>
|
||||||
|
</tr>
|
||||||
|
{% endfor %}
|
||||||
|
</tbody>
|
||||||
|
</table>
|
||||||
|
<br>
|
||||||
|
|
||||||
|
<h3>课程信息统计</h3>
|
||||||
|
<table>
|
||||||
|
<thead>
|
||||||
|
<tr>
|
||||||
|
<th>课程号</th>
|
||||||
|
<th>课程名</th>
|
||||||
|
<th>最高成绩</th>
|
||||||
|
<th>最低成绩</th>
|
||||||
|
<th>平均成绩</th>
|
||||||
|
</tr>
|
||||||
|
</thead>
|
||||||
|
<tbody>
|
||||||
|
{% for i in courselist %}
|
||||||
|
<tr>
|
||||||
|
<th>{{i[0].cno}}</th>
|
||||||
|
<th>{{ i[0].cname }}</th>
|
||||||
|
<th>{{i[1]}}</th>
|
||||||
|
<th>{{i[2]}}</th>
|
||||||
|
<th>{{i[3]}}</th>
|
||||||
|
</tr>
|
||||||
|
{% endfor %}
|
||||||
|
</tbody>
|
||||||
|
</table>a
|
||||||
|
<br>
|
||||||
|
|
||||||
|
<h3>选课及成绩统计</h3>
|
||||||
|
<table>
|
||||||
|
<thead>
|
||||||
|
<tr>
|
||||||
|
<th>课程号</th>
|
||||||
|
<th>学生号</th>
|
||||||
|
<th>成绩</th>
|
||||||
|
<th>修改</th>
|
||||||
|
<th>删除</th>
|
||||||
|
</tr>
|
||||||
|
</thead>
|
||||||
|
<tbody>
|
||||||
|
{% for i in sclist %}
|
||||||
|
<tr>
|
||||||
|
<form action="" method="post">
|
||||||
|
<th>
|
||||||
|
<input name="cno" type="hidden" value="{{ i.cno }}">{{ i.cno }}
|
||||||
|
</th>
|
||||||
|
<th>
|
||||||
|
<input name="sno" type="hidden" value="{{ i.sno }}">{{ i.sno }}
|
||||||
|
</th>
|
||||||
|
<th>
|
||||||
|
<input name="grade" type="text" value="{{ i.grade }}">
|
||||||
|
</th>
|
||||||
|
<th>
|
||||||
|
<button type="submit" name="type" value="changesc">提交修改</button>
|
||||||
|
</th>
|
||||||
|
<th>
|
||||||
|
<button type="submit" name="type" value="deletesc">删除选课</button>
|
||||||
|
</th>
|
||||||
|
</form>
|
||||||
|
</tr>
|
||||||
|
{% endfor %}
|
||||||
|
<tr>
|
||||||
|
<form action="" method="post">
|
||||||
|
<input name="type" type="hidden" value="addsc">
|
||||||
|
<th>
|
||||||
|
<input name="cno" type="text">
|
||||||
|
</th>
|
||||||
|
<th>
|
||||||
|
<input name="sno" type="text">
|
||||||
|
</th>
|
||||||
|
<th>
|
||||||
|
<input name="grade" type="text">
|
||||||
|
</th>
|
||||||
|
<th>
|
||||||
|
<button type="submit">添加信息</button>
|
||||||
|
</th>
|
||||||
|
</form>
|
||||||
|
</tr>
|
||||||
|
</tbody>
|
||||||
|
</table>
|
||||||
|
</body>
|
||||||
|
</html>
|
||||||
27
school system/templates/login.html
Normal file
27
school system/templates/login.html
Normal file
@ -0,0 +1,27 @@
|
|||||||
|
<!DOCTYPE html>
|
||||||
|
<html>
|
||||||
|
<head>
|
||||||
|
<title>数据库实验</title>
|
||||||
|
<meta charset="UTF-8">
|
||||||
|
</head>
|
||||||
|
<body>
|
||||||
|
<h2>数据库实验-学校管理系统</h2>
|
||||||
|
<form action="/login" method="post">
|
||||||
|
<label for="login-method">登录选项：</label>
|
||||||
|
<select id="login-method" name="login-method">
|
||||||
|
<option value="student">学生登录</option>
|
||||||
|
<option value="teacher">教师登录</option>
|
||||||
|
<option value="admin">管理员登录</option>
|
||||||
|
</select><br><br>
|
||||||
|
|
||||||
|
<label for="account">账号：</label>
|
||||||
|
<input type="text" id="account" name="account"><br><br>
|
||||||
|
|
||||||
|
<label for="password">密码：</label>
|
||||||
|
<input type="password" id="password" name="password"><br><br>
|
||||||
|
|
||||||
|
<input type="submit" value="登录">
|
||||||
|
</form>
|
||||||
|
|
||||||
|
</body>
|
||||||
|
</html>
|
||||||
94
school system/templates/student.html
Normal file
94
school system/templates/student.html
Normal file
@ -0,0 +1,94 @@
|
|||||||
|
<!DOCTYPE html>
|
||||||
|
<html xmlns="http://www.w3.org/1999/html">
|
||||||
|
<head>
|
||||||
|
<title>学生系统</title>
|
||||||
|
<meta charset="UTF-8">
|
||||||
|
</head>
|
||||||
|
<body>
|
||||||
|
<h2>数据库实验-学生系统</h2>
|
||||||
|
<br>
|
||||||
|
<h3>个人信息修改</h3>
|
||||||
|
<form action="" method="post">
|
||||||
|
<input type="hidden" name="type" value="changeinfo">
|
||||||
|
<label for="name">姓名：</label>
|
||||||
|
<input type="text" id="name" name="name" value="{{ username }}"><br>
|
||||||
|
|
||||||
|
{% if usergender == '男' %}
|
||||||
|
<input type="radio" name="gender" value="男" checked>男
|
||||||
|
{% else %}
|
||||||
|
<input type="radio" name="gender" value="男">男
|
||||||
|
{% endif %}
|
||||||
|
|
||||||
|
{% if usergender == '女' %}
|
||||||
|
<input type="radio" name="gender" value="女" checked>女
|
||||||
|
{% else %}
|
||||||
|
<input type="radio" name="gender" value="女">女
|
||||||
|
{% endif %}
|
||||||
|
|
||||||
|
<label for="age" >年龄：</label>
|
||||||
|
<input type="number" id="age" name="age" value="{{ userage }}"><br>
|
||||||
|
|
||||||
|
<label for="password">密码：</label>
|
||||||
|
<input type="password" id="password" name="password"><br>
|
||||||
|
|
||||||
|
<input type="submit" value="提交修改">
|
||||||
|
</form>
|
||||||
|
<br>
|
||||||
|
|
||||||
|
<h3>选课信息</h3>
|
||||||
|
<table>
|
||||||
|
<thead>
|
||||||
|
<tr>
|
||||||
|
<th>课程号</th>
|
||||||
|
<th>课程名</th>
|
||||||
|
<th>科任老师编号</th>
|
||||||
|
<th>学分</th>
|
||||||
|
</tr>
|
||||||
|
</thead>
|
||||||
|
<tbody>
|
||||||
|
{% for i in usercourse %}
|
||||||
|
<tr>
|
||||||
|
<th>{{ i[1].cno }}</th>
|
||||||
|
<th>{{ i[1].cname }}</th>
|
||||||
|
<th>{{ i[1].tno }}</th>
|
||||||
|
<th>{{ i[1].ccredit }}</th>
|
||||||
|
</tr>
|
||||||
|
{% endfor %}
|
||||||
|
</tbody>
|
||||||
|
</table>
|
||||||
|
<div>合计学分：{{ totalcredit }}</div>
|
||||||
|
<br>
|
||||||
|
|
||||||
|
<h3>选课</h3>
|
||||||
|
<table>
|
||||||
|
<thead>
|
||||||
|
<tr>
|
||||||
|
<th>课程号</th>
|
||||||
|
<th>课程名</th>
|
||||||
|
<th>科任老师编号</th>
|
||||||
|
<th>学分</th>
|
||||||
|
<th>选择</th>
|
||||||
|
</tr>
|
||||||
|
</thead>
|
||||||
|
<tbody>
|
||||||
|
{% for i in selectablecourse %}
|
||||||
|
<tr>
|
||||||
|
<th>{{ i.cno }}</th>
|
||||||
|
<th>{{ i.cname }}</th>
|
||||||
|
<th>{{ i.tno }}</th>
|
||||||
|
<th>{{ i.ccredit }}</th>
|
||||||
|
<th>
|
||||||
|
<form action="" method="POST">
|
||||||
|
<input type="hidden" name="type" value="courseselection">
|
||||||
|
<input type="hidden" name="course" value="{{ i.cno }}">
|
||||||
|
<input type="submit" value="选课">
|
||||||
|
</form>
|
||||||
|
</th>
|
||||||
|
</tr>
|
||||||
|
{% endfor %}
|
||||||
|
</tbody>
|
||||||
|
</table>
|
||||||
|
|
||||||
|
|
||||||
|
</body>
|
||||||
|
</html>
|
||||||
Loading…
Reference in New Issue
Block a user