自学教程：python学生信息管理系统实现代码

#!/usr/bin/env python# -*- coding:utf-8 -*-import reimport 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...")            returndef 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 --version4.3(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