编写可以实现学生成绩简单管理系统。本系统主要实现以下功能：(1)录入学生信息。(2)按学号查询学生信息。(3)按姓名查询学生信息。(4)添加一个学生信息。(5)按学号删除学生信息(6)按学号修改学生信息(7)显示所有学生信息(8)按课程排序(有高到底)输出显示学生信息(9)按分数段统计学生信息(10)退出系统

好的，我可以为您提供一份 Python 代码，实现上述的学生成绩简单管理系统。请您先创建一个名为 `students.txt` 的空文本文件，用于存储学生信息。

import os

def main():
    while True:
        print('''
        =============学生成绩管理系统=============
        1. 录入学生信息
        2. 按学号查询学生信息
        3. 按姓名查询学生信息
        4. 添加一个学生信息
        5. 按学号删除学生信息
        6. 按学号修改学生信息
        7. 显示所有学生信息
        8. 按课程排序输出显示学生信息
        9. 按分数段统计学生信息
        0. 退出系统
        ==========================================
        ''')
        choice = input('请输入对应的数字：')
        if choice == '1':
            add_student()
        elif choice == '2':
            search_by_id()
        elif choice == '3':
            search_by_name()
        elif choice == '4':
            add_one_student()
        elif choice == '5':
            delete_by_id()
        elif choice == '6':
            modify_by_id()
        elif choice == '7':
            show_all_students()
        elif choice == '8':
            sort_by_course()
        elif choice == '9':
            statistics_by_score()
        elif choice == '0':
            break
        else:
            print('输入有误，请重新输入！')

def add_student():
    try:
        with open('students.txt', 'a') as file:
            while True:
                id = input('请输入学号（输入0返回上一级）：')
                if id != '0':
                    name = input('请输入姓名：')
                    math = input('请输入数学成绩：')
                    english = input('请输入英语成绩：')
                    programming = input('请输入编程成绩：')
                    file.write(id + ' ' + name + ' ' + math + ' ' + english + ' ' + programming + '\n')
                else:
                    break
    except Exception as e:
        print('出现异常：', e)

def search_by_id():
    try:
        id = input('请输入要查询的学生学号：')
        with open('students.txt', 'r') as file:
            for line in file:
                student = line.strip().split()
                if student[0] == id:
                    print('学号\t姓名\t数学\t英语\t编程')
                    print(line)
                    break
            else:
                print('没有找到该学生！')
    except Exception as e:
        print('出现异常：', e)

def search_by_name():
    try:
        name = input('请输入要查询的学生姓名：')
        with open('students.txt', 'r') as file:
            flag = False
            for line in file:
                student = line.strip().split()
                if student[1] == name:
                    if not flag:
                        print('学号\t姓名\t数学\t英语\t编程')
                    print(line)
                    flag = True
            if not flag:
                print('没有找到该学生！')
    except Exception as e:
        print('出现异常：', e)

def add_one_student():
    try:
        id = input('请输入学号：')
        name = input('请输入姓名：')
        math = input('请输入数学成绩：')
        english = input('请输入英语成绩：')
        programming = input('请输入编程成绩：')
        with open('students.txt', 'a') as file:
            file.write(id + ' ' + name + ' ' + math + ' ' + english + ' ' + programming + '\n')
            print('添加成功！')
    except Exception as e:
        print('出现异常：', e)

def delete_by_id():
    try:
        id = input('请输入要删除的学生学号：')
        with open('students.txt', 'r') as rfile:
            students = rfile.readlines()
        with open('students.txt', 'w') as wfile:
            flag = False
            for student in students:
                if student.split()[0] != id:
                    wfile.write(student)
                else:
                    print('删除成功！')
                    flag = True
            if not flag:
                print('没有找到该学生！')
    except Exception as e:
        print('出现异常：', e)

def modify_by_id():
    try:
        id = input('请输入要修改的学生学号：')
        with open('students.txt', 'r') as rfile:
            students = rfile.readlines()
        with open('students.txt', 'w') as wfile:
            flag = False
            for student in students:
                if student.split()[0] == id:
                    name = input('请输入姓名：')
                    math = input('请输入数学成绩：')
                    english = input('请输入英语成绩：')
                    programming = input('请输入编程成绩：')
                    student = id + ' ' + name + ' ' + math + ' ' + english + ' ' + programming + '\n'
                    flag = True
                wfile.write(student)
            if flag:
                print('修改成功！')
            else:
                print('没有找到该学生！')
    except Exception as e:
        print('出现异常：', e)

def show_all_students():
    try:
        with open('students.txt', 'r') as file:
            print('学号\t姓名\t数学\t英语\t编程')
            for line in file:
                print(line, end='')
    except Exception as e:
        print('出现异常：', e)

def sort_by_course():
    try:
        with open('students.txt', 'r') as file:
            students = file.readlines()
        students.sort(key=lambda x: int(x.strip().split()[3])+int(x.strip().split()[4])+int(x.strip().split()[5]), reverse=True)
        print('学号\t姓名\t数学\t英语\t编程')
        for student in students:
            print(student, end='')
    except Exception as e:
        print('出现异常：', e)

def statistics_by_score():
    try:
        min_score = int(input('请输入最低分数：'))
        max_score = int(input('请输入最高分数：'))
        with open('students.txt', 'r') as file:
            count = 0
            for line in file:
                student = line.strip().split()
                score = int(student[2]) + int(student[3]) + int(student[4])
                if min_score <= score <= max_score:
                    count += 1
            print(f'总共有 {count} 个学生在 {min_score} 到 {max_score} 分之间！')
    except Exception as e:
        print('出现异常：', e)

if __name__ == '__main__':
    main()

在运行程序之前，需要确保 Python 环境已经安装，同时请将以上代码复制到一个名为 `students.py` 的文件中。在终端中执行 `python students.py` 即可运行程序。