# -*- coding: utf-8 -*- # 作者:李宗校 # 出处:TelKing # 创建时间:2022/5/4 9:12 上午 # 文件名:stusystem.py import os filename = 'student.txt' def main(): while True: menum() choice = int(input('请选择')) if choice in [0, 1, 2, 3, 4, 5, 6, 7]: if choice == 0: answer = input('您确定要退出系统吗?y/n') if answer == 'y' or answer == 'Y': print('谢谢您的使用') break # 退出系统 else: continue elif choice == 1: insert() # 录入信息 elif choice == 2: search() # 搜索信息 elif choice == 3: delete() # 删除信息 elif choice == 4: modify() # 修改信息 elif choice == 5: sort() # 排序 elif choice == 6: total() # 统计 elif choice == 7: show() # 展示 def menum(): print('===============================学生信息管理系统================================') print('==================================功能菜单================================') print('\t\t\t\t\t\t1.录入学生信息') print('\t\t\t\t\t\t2.查找学生信息') print('\t\t\t\t\t\t3.删除学生信息') print('\t\t\t\t\t\t4.修改学生信息') print('\t\t\t\t\t\t5.排序') print('\t\t\t\t\t\t6.统计学生总人数') print('\t\t\t\t\t\t7.显示所有学生信息') print('\t\t\t\t\t\t0.退出') print('=============================================================================') def insert(): student_list = [] while True: id = input('请输入学生的id(如1001)') if not id: break name = input('请输入姓名:') if not name: break try: english = int(input('请输入英语成绩:')) python = int(input('请输入Python成绩:')) java = int(input('请输入Java成绩:')) except: print('输入无效,不是整数类型,请重新输入') continue # 将录入的学生信息保存到字典 student = {'id': id, 'name': name, 'english': english, 'python': python, 'java': java} # 将学生信息放入列表中 student_list.append(student) answer = input('是否继续添加?y/n\n') if answer == 'y' or answer == 'Y': continue else: break # 调用sava()函数 sava(student_list) print('学生信息录入完毕!') def sava(list): try: stu_txt = open(filename, 'a', encoding='utf-8') # 创建或追加 except: stu_txt = open(filename, 'w', encoding='utf-8') # 创建并写入 for item in list: stu_txt.write(str(item) + '\n') # 循环遍历列表,并将每一项都写入stu_txt stu_txt.close() def search(): student_query = [] while True: id = '' name = '' if os.path.exists(filename): mode = input('按照ID查找请输入1,按姓名查找请输入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', encoding='utf-8') as rfile: student = rfile.readlines() for item in student: d = dict(eval(item)) if id != '': if d['id'] == id: student_query.append(d) elif name != '': if d['name'] == name: student_query.append(d) # 显示查询结果 show_student(student_query) # 清空列表 student_query.clear() answer = input('是否继续查询?y/n\n') if answer == 'y': continue else: break else: print('暂未保存学生信息') return def show_student(list): if len(list) == 0: print('没有查询到学生信息,无数据显示') return # 定义标题显示格式 format_title = '{:^6}\t{:^12}\t{:^8}\t{:^8}\t{:^8}\t{:^8}' print(format_title.format('id', '姓名', '英语成绩', 'Python成绩', 'Java成绩', '总成绩')) # 定义内容显示格式 format_data = '{:^6}\t{:^12}\t{:^8}\t{:^8}\t{:^8}\t{:^10}' for item in list: print( format_data.format(item.get('id'), item.get('name'), item.get('english'), item.get('python'), item.get('java'), int(item.get('english')) + int(item.get('python')) + int(item.get('java')))) def delete(): while True: student_id = input('请输入要删除的学生id:') if student_id != '': if os.path.exists(filename): with open(filename, 'r', encoding='utf-8') as file: student_old = file.readlines() else: student_old = [] flag = False # 标记是否删除 if student_old: with open(filename, 'w', encoding='utf-8') as wfile: for item in student_old: d = dict(eval(item)) # 字符串转为字典类型 if d['id'] != student_id: wfile.write(str(d) + '\n') else: flag = True if flag: print(f'id为{student_id}的学生信息已删除') else: print(f'没有找到{student_id}的学生信息') else: print('无学生信息') break show() answer = input('是否继续删除?y/n\n') if answer == 'y': continue else: break def modify(): show() if os.path.exists(filename): with open(filename, 'r', encoding='utf-8') as rfile: student_old = rfile.readlines() else: return student_id = input('请输入要修改的学生id:') with open(filename, 'w', encoding='utf-8') as wfile: for item in student_old: d = dict(eval(item)) if d['id'] == student_id: print('找到学生信息,可以开始修改他的信息了') while True: try: d['name'] = input('请输入姓名:') d['english'] = input('请输入英语成绩:') d['python'] = input('请输入Python成绩:') d['java'] = input('请输入Java成绩:') except: print('您输入有误,请重新输入') else: break wfile.write(str(d) + '\n') print('修改成功') else: wfile.write(str(d) + '\n') answer = input('是否继续修改其他学生信息?y/n \n') if answer == 'y': modify() def sort(): show() if os.path.exists(filename): with open(filename, 'r', encoding='utf-8') as rfile: student_list = rfile.readlines() student_new = [] for item in student_list: d = dict(eval(item)) student_new.append(d) else: print('暂无数据') return asc_or_desc = input('请选择(0.升序 1.降序):') if asc_or_desc == '0': asc_or_desc_bool = False elif asc_or_desc == '1': asc_or_desc_bool = 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.按英语成绩排序 2.按Python成绩排序 3.按Java成绩排序 0.按照总成绩排序)') if mode == '1': student_new.sort(key=lambda x: int(x['english']), reverse=asc_or_desc_bool) elif mode == '2': student_new.sort(key=lambda x: int(x['python']), reverse=asc_or_desc_bool) elif mode == '3': student_new.sort(key=lambda x: int(x['java']), reverse=asc_or_desc_bool) elif mode == '0': student_new.sort(key=lambda x: int(x['english']) + int(x['python']) + int(x['java']), reverse=asc_or_desc_bool) else: print('您的输入有误,请重新输入') sort() show_student(student_new) def total(): if os.path.exists(filename): with open(filename, 'r', encoding='utf-8') as rfile: student = rfile.readlines() if student: print(f'一共有{len(student)}名学生') else: print('还没有录入学生信息') else: print('暂无数据') def show(): student_list = [] if os.path.exists(filename): with open(filename, 'r', encoding='utf-8') as rfile: student = rfile.readlines() for item in student: student_list.append(eval(item)) if student_list: show_student(student_list) else: print('暂未数据') if __name__ == '__main__': main()
终端执行
pip3 install PyInstaller
pyinstaller -F {py文件路径}