学生管理系统

main

import myfunction
import time

def backup():
    myfunction.home_page()
    input_number = input('请输入一个1个数字')
    if input_number == '1':
        def  continueadd():
            name = input('请输入姓名')
            english = input('请输入英语成绩')
            pe = input('请输入体育成绩')
            art = input('请输入美术成绩')
            math = input('请输入数学成绩')
            age = input('请输入年龄')
            student_id = next(myfunction.stu_id)
            management_system = {'name': name, 'student_id': student_id, 'english':english , 'pe':pe, 'art':art, 'math':math,
                          'age':age}
            myfunction.management_systems.append(management_system)
            print('添加成功')
            print(myfunction.management_systems)
            print('1.继续添加')
            print('2.返回上一级')
            def back():
                continue_add = input('请输入一个数字')
                if continue_add == '1':
                    continueadd()
                elif continue_add == '2':
                    backup()
                else:
                    print('输入错误请重新输入')
                    back()
            back()
        continueadd()
    elif input_number == '2':
        print('1.查看所有学生信息')
        print('2.根据名字查看学生信息')
        print('3.返回上一级')
        def back2():
            find_number = input('请输入一个数字')
            if find_number == '1':
                myfunction.find_all_student()
                china = input('请输入1返回主页')
                if china == '1':
                    myfunction.home_page()
                    backup()
                else:
                    print('输入错误返回主页')
                    backup()
            elif find_number == '2':
                myfunction.find_student()
                china = input('请输入1返回主页')
                if china == '1':
                    myfunction.home_page()
                    backup()
                else:
                    print('输入错误返回主页')
                    backup()
            elif find_number == '3':
                backup()
            else:
                print('输入错误请重新输入')
                back2()
        back2()
    elif input_number == '3':
        def continue_delet():
            myfunction.delete_student()
            print('删除成功')
            print(myfunction.management_systems)
            print('1.继续删除')
            print('2.返回上一级')
            def back():
                continue_add = input('请输入一个数字')
                if continue_add == '1':
                    continue_delet()
                elif continue_add == '2':
                    backup()
                else:
                    print('输入错误请重新输入')
                    back()
            back()
        continue_delet()
    elif input_number == '4':
        def continue_find():
            myfunction.check_average_grade()
            print('1.继续查看')
            print('2.返回上一级')
            def back():
                continue_find3 = input('请输入一个数字')
                if continue_find3 == '1':
                    continue_find()
                elif continue_find3 == '2':
                    backup()
                else:
                    print('输入错误请重新输入')
                    back()

            back()
        continue_find()
    elif input_number == '5':
        print('退出系统')



print('+'*66)
print((' '*64).center(66,'+'))
print((' '*64).center(66,'+'))
print((' '*64).center(66,'+'))
print((' '*14+'欢迎进入海龙学生管理中心'+' '*26).center(54,'+'))
print((' '*64).center(66,'+'))
print((' '*64).center(66,'+'))
print((' '*64).center(66,'+'))
print('+'*66)
def mylogin():
    myaccount = input('请输入账号')
    mypassword = input('请输入密码')
    if myaccount == '1207038216':
        if mypassword == '123456':
            print('正在登录...')
            time.sleep(3)

            print('登录成功')
            backup()

        else:
            print('密码错误')
            mylogin()
    else:
        print('账号错误')
        mylogin()
mylogin()
# if __name__ == '__main__':
#     backup()

myfunction

management_systems = [{'name':'dragon','student_id':1,'english':88,'pe':98,'art':78,'math':100,'age':22},\
                     {'name':'sea','student_id':2,'english':98,'pe':96,'art':88,'math':89,'age':23}]

def func3():
    num = 3
    while True:
        yield num
        num += 1
stu_id = func3()

def find_student():
     name = input('请输入你要查看学生姓名')
     same_num = 0
     for x in range(0, len(management_systems)):
         student = management_systems[x]
         if student['name'] == name:
             same_num += 1
             print(same_num,student)
         else:
             print('没有此学生')


def home_page():
    print('+' * 66)
    print((' ' * 64).center(66, '+'))
    print((' ' * 17 + '1.添加学生' + ' ' * 37).center(62, '+'))
    print((' ' * 17 + '2.查找学生' + ' ' * 37).center(62, '+'))
    print((' ' * 17 + '3.删除学生' + ' ' * 37).center(62, '+'))
    print((' ' * 17 + '4.查看某学生平均成绩' + ' ' * 27).center(57, '+'))
    print((' ' * 17 + '5.退出系统' + ' ' * 37).center(62, '+'))
    print((' ' * 64).center(66, '+'))
    print((' ' * 64).center(66, '+'))
    print('+' * 66)


def find_all_student():
    for x in range(0, len(management_systems)):
        student = management_systems[x]
        print(student)



def delete_student():
    delete_name = input('请输入你要删除学生姓名')
    same_student = 0
    for i in range(0,len(management_systems[:])):
        student = management_systems[i]
        if student['name'] == delete_name:
            same_student += 1
    if same_student == 1:
        for j in range(0, len(management_systems[:])):
            student = management_systems[j]
            if student['name'] == delete_name:
                del management_systems[j]
    else:
        for k in range(0, len(management_systems[:])):
            student = management_systems[k]
            if student['name'] == delete_name:
                print(management_systems[k])
        print('请选择要删除学生学号')
        same_student_id = input('输入要删除学生学号')
        for x in range(0,len(management_systems[:])):
            student = management_systems[x]
            if same_student_id == student['student_id']:
                del management_systems[x]
            else:
                print('本校查无此人')


def check_average_grade():
    name1 = input('请输入查看学生姓名')
    for m in range(0, len(management_systems)):
        student = management_systems[m]
        if student['name'] == name1:
            student_averagescores = (student['english'] + student['pe'] + student['art'] + student['math']) / 4
            print(student_averagescores)