Python Student Information Management System Tutorial

This article describes how to create a console‑based student information management system using Python. It begins with a brief system introduction, listing the main functions: add, delete, modify, search, display student records, and exit the program.

System Overview

The system operates in a loop until the user selects option 6 to quit. The user is presented with a menu, inputs a function number, and the corresponding function is executed.

Step‑by‑Step Analysis

Display the menu interface.

Prompt the user to enter a function number.

Call the appropriate function based on the input.

Function Implementations

The core functions are defined as follows:

# Define a function to print the menu

def info_print():
    print('--------请选择功能-----')
    print('1、添加学生')
    print('2、删除学生')
    print('3、修改学生')
    print('4、查询学生')
    print('5、显示所有学生')
    print('6、退出系统')
    print('-' * 20)

# Global list to store student dictionaries
info = []

Add Student Information

def add_info():
    """添加学生函数"""
    # Receive user input
    new_id = input("输入学号：")
    new_name = input("输入姓名：")
    new_tel = input("输入手机号：")
    # Prevent duplicate names
    for i in info:
        if new_name == i['name']:
            print("此用户已经存在，请勿重复添加")
            return
    # Append new student dictionary
    info_dict = {'id': new_id, 'name': new_name, 'tel': new_tel}
    info.append(info_dict)
    print(info)

Delete Student Information

def del_info():
    """删除学生"""
    del_name = input("请输入要删除的学生的姓名：")
    for i in info:
        if del_name == i['name']:
            info.remove(i)
            break
    else:
        print('该学生不存在！')
    print(info)

Modify Student Information

def modify_info():
    """修改函数"""
    modify_name = input("请输入要修改的学生的姓名：")
    for i in info:
        if modify_name == i['name']:
            i['tel'] = input("请输入新的手机号：")
            break
    else:
        print("该学生不存在")
    print(info)

Search Student Information

def search_info():
    """查询学生信息"""
    search_name = input("请输入要查找的学生姓名：")
    for i in info:
        if search_name == i['name']:
            print("找到该学生的信息如下：")
            print(f"该学生的学号是{i['id']},姓名是{i['name']},手机号是{i['tel']}")
            break
    else:
        print("该学生不存在！")

Display All Students

def print_all():
    """显示所有学生信息"""
    print('学号\t姓名\t手机号')
    for i in info:
        print(f"{i['id']}\t{i['name']}\t{i['tel']}")

Main Loop

while True:
    info_print()
    user_num = eval(input('请输入功能序号：'))
    if user_num == 1:
        add_info()
    elif user_num == 2:
        del_info()
    elif user_num == 3:
        modify_info()
    elif user_num == 4:
        search_info()
    elif user_num == 5:
        print_all()
    elif user_num == 6:
        exit_flag = input("确定要退出吗？yes/no?")
        if exit_flag == 'yes':
            break
    else:
        print('输入的功能序号有误！')

The article also includes screenshots of the program’s runtime showing adding, deleting, modifying, searching, and displaying student data, followed by a QR code that advertises free Python learning resources (which is promotional content outside the tutorial).