学生通讯管理系统v2.0

首先创建一个python文件

import StudentEntity
from DataAccess import*
student = []
def menu():
    print("-" * 40)
    print("欢迎使用学生通讯管理系统v2.0")
    print("[1] 增加学员信息")
    print("[2] 删除学员信息")
    print("[3] 打印学员信息")
    print("[4] 退出系统")
    print("-" * 40)
def add(students):
    no = input("请输入学员学号")
    name = input("请输入学员姓名")
    age = int(input("请输入学员年龄"))
    contact = input("请输入学员电话")
    student = Student(no , name, age, contact)
    students.append(student)
    print("学号为{}的{}同学添加成功！".format(student.no, student.name))

def remove(students):
    no = input("请输入学员学号")
    for x in students:
        if x.no == no:
            print("学号为{}的{}同学被移除！".format(x.no,x.name))
            students.remove(x)
            break
    else:
        print("没有找到要删除的学生信息")
if __name__ == '__main__':
    students = loadStudents()
    while True:
        menu()
        op = int(input())
        if op == 1:
            add(students)
        elif op == 2:
            remove(students)
        elif op == 3:
            for x in students:
                print(x)
        elif op == 4:
            print("感谢使用学生通讯系统v2.0")
            break
        else:
            print("输入错误，请重新输入要操作的编号")

    saveStudents(students)

然后在venv文件中再创建两个python文件

在这里第一个文件名为“StudentEntity”

class Student:
    def  __init__(self,no,name,age,contact):
        self.no = no
        self.name = name
        self.age = age
        self.contact = contact
    def __str__(self):
        return "{},{},{},{}".format(self.no,self.name,self.age,self.contact)
if __name__ == '__main__':
    li = Student("2021","李四",20,13432424)
    print(li)

第二个文件名“DataAccess”

from StudentEntity import Student
def loadStudents():
    file = open("Student.txt", "r", encoding="utf-8")
    lines = file.readlines()
    students = []
    for line in lines:
        a = line.split(',')
        students.append(Student(a[0],a[1],int(a[2]),a[3].strip('n')))
    file.close()
    return students
def saveStudents(students):
    file = open("student.text","w",encoding="utf-8")
    for x in students:
        file.write(str(x) + 'n')
    file.close()
if __name__ == '__main__':
    a = loadStudents()
    print(a)
    a.append(Student("2024","赵柳",21,189342424))
    print(a)
    saveStudents(a)

最后再在电脑中放python文件的位置上创建一个Student.txt文件

之后就可以运行了。