python学生信息管理系统实现代码

#!/usr/bin/env python
# -*- coding:utf-8 -*-
import re
import os


# 主函数
def main():
    ctrl = True
    while (ctrl):
        menu()
        option = input("请选择：")
        option_str = re.sub("\D", "", option)
        if option_str in ['0', '1', '2', '3', '4', '5', '6', '7']:
            option_int = int(option_str)
            if option_int == 0:
                print("您已退出学生信息管理系统！")
                ctrl = False
            elif option_int == 1:
                insert()
            elif option_int == 2:
                search()
            elif option_int == 3:
                delete()
            elif option_int == 4:
                modify()
            elif option_int == 5:
                sort()
            elif option_int == 6:
                total()
            elif option_int == 7:
                show()


# 显示主菜单
def menu():
    print("""
    -------------------学生信息管理系统---------------------
    ======================功能菜单=========================
    
    1 录入学生信息
    2 查找学生信息
    3 删除学生信息
    4 修改学生信息
    5 排序
    6 统计学生总人数
    7 显示所有学生信息
    0 退出系统
    ======================================================
    说明：通过数字或上下方向键选择菜单
    ------------------------------------------------------
    """)


# 向指定文件写入指定内容的函数
filename = "students.txt"


def save(student):
    try:
        students_txt = open(filename, "a")
    except:
        students_txt = open(filename, "w")
    for info in student:
        students_txt.write(str(info) + "\n")
    students_txt.close()


#     1 录入学生信息
def insert():
    studentList = []
    mark = True
    while mark:
        id = input("请输入ID(如1001)：")
        if not id:
            break
        name = input("请输入名字：")
        if not name:
            break
        try:
            english = int(input("请输入英语成绩："))
            python = int(input("请输入Python成绩："))
            c = int(input("请输入C语言成绩："))
        except:
            print("输入无效，不是整型数值....重新录入信息")
            continue
        # 信息保存到字典
        student = {"id": id, "name": name, "english": english, "python": python, "C语言": c}
        studentList.append(student)
        inputMark = input("是否继续添加？（y/n）:")
        if inputMark == "y":
            mark = True
        else:
            mark = False
        save(studentList)
        print("学生信息录入完毕！")


#     2 查找学生信息
def search():
    mark = True
    student_query = []
    while mark:
        id = ""
        name = ""
        if os.path.exists(filename):
            mode = input("按ID查输入1，按姓名查输入2：")
            if mode == "1":
                id = input("请输入学生ID：")
            elif mode == "2":
                name = input("请输入学生姓名：")
            else:
                print("您的输入有误，请重新输入！")
                search()
            with open(filename, 'r') as file:
                student = file.readlines()
                for list in student:
                    d = dict(eval(list))
                    if id is not "":
                        if d['id'] == id:
                            student_query.append(d)
                    elif name is not "":
                        if d['name'] == name:
                            student_query.append(d)
                show_student(student_query)
                student_query.clear()
                inputMark = input("是否继续查询？（y/n）：")
                if inputMark == "y":
                    mark = True
                else:
                    mark = False
        else:
            print("暂未保存数据信息...")
            return


def show_student(studentList):
    if not studentList:
        print("无数据信息")
        return
    format_title = "{:^6}{:^12}\t{:^8}\t{:^10}\t{:^10}\t{:^10}"
    print(format_title.format("ID", "名字", "英语成绩", "Python成绩", "C语言成绩", "总成绩"))
    format_data = "{:^6}{:^12}\t{:^12}\t{:^12}\t{:^12}\t{:^12}"
    for info in studentList:
        print(format_data.format(info.get("id"), info.get("name"), str(info.get("english")), str(info.get("python")),
                                 str(info.get("C语言")),
                                 str(info.get("english")+info.get("python")+info.get("C语言")).center(12)))


#     3 删除学生信息
def delete():
    mark = True
    while mark:
        studentId = input("请输入要删除的学生ID：")
        if studentId is not "":
            if os.path.exists(filename):
                with open(filename, 'r') as rfile:
                    student_old = rfile.readlines()
            else:
                student_old = []
            ifdel = False
            if student_old:
                with open(filename, 'w') as wfile:
                    d = {}
                    for list in student_old:
                        d = dict(eval(list))
                        if d['id'] != studentId:
                            wfile.write(str(d) + "\n")
                        else:
                            ifdel = True
                    if ifdel:
                        print("ID为%s的学生信息已经被删除..." % studentId)
                    else:
                        print("没有找到ID为%s的学生信息..." % studentId)
            else:
                print("无学生信息...")
                break
            show()
            inputMark = input("是否继续删除？（y/n）:")
            if inputMark == "y":
                mark = True
            else:
                mark = False


#     4 修改学生信息
def modify():
    show()
    if os.path.exists(filename):
        with open(filename, 'r') as rfile:
            student_old = rfile.readlines()
    else:
        return
    studentid = input("请输入要修改的学生ID：")
    with open(filename, "w") as wfile:
        for student in student_old:
            d = dict(eval(student))
            if d["id"] == studentid:
                print("找到了这名学生，可以修改他的信息！")
                while True:
                    try:
                        d["name"] = input("请输入姓名：")
                        d["english"] = int(input("请输入英语成绩："))
                        d["python"] = int(input("请输入Python成绩："))
                        d["C语言"] = int(input("请输入C语言成绩："))
                    except:
                        print("输入信息有误，重新输入")
                    else:
                        break
                student = str(d)
                wfile.write(student + "\n")
                print("修改成功！")
            else:
                wfile.write(student)
    mark = input("是否继续修改其他学生信息？（y/n）：")
    if mark == "y":
        modify()


#     5 排序
def sort():
    show()
    if os.path.exists(filename):
        with open(filename, 'r') as file:
            student_old = file.readlines()
            student_new = []
        for list in student_old:
            d = dict(eval(list))
            student_new.append(d)
    else:
        return
    ascOrDesc = input("请选择（0升序；1降序）：")
    if ascOrDesc == "0":
        ascOrDescBool = False
    elif ascOrDesc == "1":
        ascOrDescBool = True
    else:
        print("您的输入有误，请重新输入！")
        sort()
    mode = input("请选择排序方式（1按英语排序；2按Python排序；3按C语言排序；0按总成绩排序）")
    if mode == "1":
        student_new.sort(key=lambda x: x["english"], reverse=ascOrDescBool)
    elif mode == "2":
        student_new.sort(key=lambda x: x["python"], reverse=ascOrDescBool)
    elif mode == "3":
        student_new.sort(key=lambda x: x["C语言"], reverse=ascOrDescBool)
    elif mode == "0":
        student_new.sort(key=lambda x: x["english"] + x["python"] + x["C语言"], reverse=ascOrDescBool)
    else:
        print("您的输入有误，请重新输入！")
        sort()
    show_student(student_new)


#     6 统计学生总人数
def total():
    if os.path.exists(filename):
        with open(filename, 'r') as rfile:
            student_old = rfile.readlines()
            if student_old:
                print("一共有%s名学生" % len(student_old))
            else:
                print("还没有录入学生信息！")
    else:
        print("暂未保存数据信息...")


#     7 显示所有学生信息
def show():
    student_new = []
    if os.path.exists(filename):
        with open(filename, 'r') as rfile:
            student_old = rfile.readlines()
        for list in student_old:
            student_new.append(eval(list))
        if student_new:
            show_student(student_new)
    else:
        print("暂未保存数据信息...")


#     0 退出系统


if __name__ == '__main__':
    main()

pip install pyinstaller
...

(pydemo) D:\JavaProjects\PythonProject\01学生信息管理系统>pyinstaller --version
4.3
(pydemo) D:\JavaProjects\PythonProject\01学生信息管理系统>pyinstaller -F D:\JavaProjects\PythonProject\01学生信息管理系统\StuManagerSys.py