From f91089c4ec3b63e2b18038e550d1dcd8c03e3da3 Mon Sep 17 00:00:00 2001 From: pvgq2hun3 <2154205804@qq.com> Date: Wed, 1 Apr 2026 15:35:34 +0800 Subject: [PATCH] ADD file via upload --- main.py | 253 ++++++++++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 253 insertions(+) create mode 100644 main.py diff --git a/main.py b/main.py new file mode 100644 index 0000000..9edf975 --- /dev/null +++ b/main.py @@ -0,0 +1,253 @@ +import sys +import os +from database import DataBase +from student import Student + + +# 格式化输出Student数组 +def print_student_info(student_list): + if isinstance(student_list, list): + if len(student_list) == 0: + print(''' +========================= + 没有符合条件的学生信息 +========================= + ''') + else: + print("{:<12}\t{:<12}\t{:<12}\t{:<12}\t{:<12}\t{:<12}".format( + "学号", "姓名", + "English成绩", + "python成绩", + "java成绩", + "总成绩")) + for i in student_list: + print("{:<12}\t{:<12}\t{:<12g}\t{:<12g}\t{:<12g}\t{:<12g}".format( + i.stuid, + i.name, + i.english_grade, + i.python_grade, + i.java_grade, + i.total_grade)) + else: + print("没有符合条件的学生信息") + +# 添加学生 +def add_student(): + stuid = input("请输入学号：") + name = input("请输入姓名：") + english_grade = input("请输入英语成绩：") + python_grade = input("请输入python成绩：") + java_grade = input("请输入java成绩：") + + try: + student = Student(stuid, name, english_grade, python_grade, java_grade) + DataBase.add_student_info(student) + # DataBase.add_student_info(student) + except Exception as e: + print("输入内容不合法", e) + + isContinue = input("是否继续添加学生y/n(其他任意键)") + if isContinue is 'y': + add_student() + +# 查找学生 +def query_student(): + print(''' +===================================== + 1.学号查询 + 2.姓名查询 + 0.返回菜单(其他任意键) +===================================== + ''') + num = input("请输入选择：：") + if num == '1': + stuid = input("请输入学号：") + student_list = DataBase.query_student_info_by_stuid(stuid) + print_student_info(student_list) + elif num == '2': + name = input("请输入姓名：") + student_list = DataBase.query_student_info_by_name(name) + print_student_info(student_list) + else: + pass + os.system("pause") + +# 删除学生 +def delete_student(): + stuid = input("请输入学号：") + student_list = DataBase.query_student_info_by_stuid(stuid) + print_student_info(student_list) + if len(student_list) != 0: + num = input("是否删除该学生y/n(其他任意键)") + if num == 'y': + DataBase.delete_student_info_by_stuid(stuid) + num = input("是否继续删除学生y/n(其他任意键)") + if num == 'y': + delete_student() + + +# 编辑学生 +def edit_student(): + stuid = input("请输入学号：") + student_list = DataBase.query_student_info_by_stuid(stuid) + print_student_info(student_list) + if len(student_list) != 0: + print(''' +===================================== + 1.修改改学生信息 + 0.退出(其他任意键) +===================================== + ''') + num = input("请选择功能") + if num == '1': + student = student_list[0] + student.name = input("请输入修改后的姓名：") + student.english_grade = input("请输入修改后的English成绩：") + student.python_grade = input("请输入修改后的python成绩：") + student.java_grade = input("请输入修改后的java成绩：") + DataBase.edit_student_info(student) + num = input("是否继续修改学生信息y/n(其他任意键)") + if num == 'y': + edit_student() + + +# 排序 +def sort_student(): + sortType = False + print(''' + ====================================== + 1.升序 + 2.降序 + 0.返回菜单(其它任意键) + ====================================== + ''') + num = input("请选择排序方式：") + + if num == '1': + sortType = False + elif num == '2': + sortType = True + else: + return + + print(''' +====================================== + 1.学号排序 + 2.姓名排序 + 3.English成绩排序 + 4.python成绩排序 + 5.java成绩排序 + 6.总成绩排序 + 0.返回菜单(其它任意键) +====================================== + ''') + + num = input("请选择功能：") + student_list = DataBase.get_student_list() + + numbers = { + '1': lambda x: list(x.stuid), + '2': lambda x: list(x.name), + '3': lambda x: x.english_grade, + '4': lambda x: x.python_grade, + '5': lambda x: x.java_grade, + '6': lambda x: x.total_grade, + } + + method = numbers.get(num) + if method: + student_list.sort(key=method, reverse=sortType) + print_student_info(student_list) + else: + return + + num = input("继续排序y/n(其它任意键)") + + if num == 'y': + sort_student() + + +# 统计 +def statistics_student_info(): + student_list = DataBase.get_student_list() + student_num = len(student_list) + registered_num = 0 + total_grade = 0.0 + average_grade = 0.0 + for item in student_list: + if item.english_grade < 60 or item.python_grade < 60 or item.java_grade < 60: + registered_num = registered_num + 1 + total_grade = total_grade + item.total_grade + average_grade = total_grade / student_num + + print(''' +======================================================= +学生总人数：{} +挂科人数：{} +平均总成绩：{:.2f} +总成绩：{:g} +======================================================= + '''.format(student_num, registered_num, average_grade, total_grade)) + + os.system('pause') + +# 展示所有学生信息 +def show_all_student_info(): + student_list = DataBase.get_student_list() + print_student_info(student_list) + os.system('pause') + + +def quit_sys(): + num = input("是否确认退出y/n(其它任意键)") + if num == 'y': + print(''' + ======================= + 退出成功 + 欢迎下次使用 + ======================== + ''') + sys.exit(0) + + +def input_result(num): + numbers = { + '1': add_student, + '2': query_student, + '3': delete_student, + '4': edit_student, + '5': sort_student, + '6': statistics_student_info, + '7': show_all_student_info, + '0': quit_sys + } + method = numbers.get(num) + if method: + method() + else: + print("输入不合法") + os.system("cls") + + +def menu(): + print(''' + 学生信息管理系统 +====================================== + 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.统计学生信息 + 7.显示所有学生信息 + 0.退出 +====================================== + ''') + num = input("请选择功能：") + input_result(num) + + +if __name__ == "__main__": + DataBase.init() + while True: + menu()