这个是用python实现的基本的增删改查的学生管理系统吧,其中主要是对输入的数据进行合法性检测的问题,这次又对函数进行了练习!掌握函数更加熟练了!二话不说先贴代码,一切问题请看注释,都很详细,适合python3初学者!
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""" 学生管理系统 主要特点:1.可以检测学号是否重复/有误(不为纯数字) 2.可以检测手机号是否合法(是否为纯数字) 3.可以检测性别是否为男或者女 4.能选择性修个学生的某个属性信息,比如只修改某个学生的手机号码 5.能够实现基本的增删改查 6.优化了代码 """ name_list = [] # 存储学生信息字典,学生信息用字典存,再用列表存储字典 # 菜单 def display_menu(): print ( "-" * 30 ) print ( " 学生管理系统 v8.8 " ) print ( "1.添加学生信息" ) print ( "2.删除学生信息" ) print ( "3.修改学生信息" ) print ( "4.查询单个学生信息" ) print ( "5.查询所有学生信息" ) print ( "6.退出系统" ) print ( "-" * 30 ) # 选择序号的获得 def get_choice(): selected_key = input ( "请输入选择的序号:" ) return selected_key # 检查性别是否合法 def check_sex(new_sex): flag = true while flag: if new_sex = = '男' or new_sex = = '女' : flag = false else : new_sex = input ( "输入性别有误,请重新输入(男/女):" ) return new_sex # 检查电话号码是否合法 def check_phone(new_phone): flag = true while flag: if new_phone.isdigit(): flag = false else : new_phone = input ( "您输入的电话号码有误,请重新输入:" ) return new_phone # 检查学号是否重复或者有误 def check_id(new_id): flag = true while flag: # 先检查是不是纯数字再去考虑是否重复的事情,如果不是纯数字直接pass if new_id.isdigit(): for i in range ( len (name_list)): if name_list[i][ 'id' ] = = new_id: new_id = check_id( input ( "您输入的学号重复,请重新输入:" )) flag = false else : new_id = input ( "您输入的学号有误,请重新输入:" ) return new_id # 添加学生信息 def add_name(): new_info = {} new_id = check_id( input ( "请输入学号:" )) new_info[ 'id' ] = new_id new_name = input ( "请输入姓名:" ) new_info[ 'name' ] = new_name new_sex = check_sex( input ( "请输入性别(男/女):" )) new_info[ 'sex' ] = new_sex new_phone = check_phone( input ( "请输入电话号码:" )) new_info[ 'phone' ] = new_phone name_list.append(new_info) print ( "添加成功!" ) # 查询所有学生信息 def find_all(): print ( "=" * 30 ) for name in name_list: print (name[ 'id' ], name[ 'name' ], name[ 'sex' ], name[ 'phone' ]) print ( "=" * 30 ) # 删除学生信息 def del_name(): del_id_is = input ( "请输入要删除的学生学号:" ) flag = false index = 0 for i in range ( len (name_list)): if name_list[i][ 'id' ] = = del_id_is: flag = true index = i break if flag: name_list.pop(index) print ( "删除成功!" ) else : print ( "学生未找到!请检查学号输入是否有误!" ) # 名字修改细节函数 def choice_of_name(index): while true: choice = input ( "请输入要修改学生的(1.id 2.姓名 3.性别 4.电话号码,5.全部修改):" ) if choice = = '5' : new_id = input ( "请输入新的学号:" ) name_list[index][ 'id' ] = new_id new_name = input ( "请输入新的姓名:" ) name_list[index][ 'name' ] = new_name new_sex = check_sex( input ( "请输入性别(男/女):" )) name_list[index][ 'sex' ] = new_sex new_phone = check_phone( input ( "请输入电话号码:" )) name_list[index][ 'phone' ] = new_phone break elif choice = = '1' : new_id = input ( "请输入新的学号:" ) name_list[index][ 'id' ] = new_id break elif choice = = '2' : new_name = input ( "请输入新的姓名:" ) name_list[index][ 'name' ] = new_name break elif choice = = '3' : new_sex = check_sex( input ( "请输入性别(男/女):" )) name_list[index][ 'sex' ] = new_sex break elif choice = = '4' : new_phone = check_phone( input ( "请输入电话号码:" )) name_list[index][ 'phone' ] = new_phone break else : print ( "输入有误,请重新输入!" ) # 修改学生信息 def re_name(): id_is = input ( "请输入要修改的学生学号:" ) flag = false index = 0 # 先找到要修改的学生的下标 for i in range ( len (name_list)): if name_list[i][ 'id' ] = = id_is: flag = true index = i break if flag: choice_of_name(index) print ( "修改成功!" ) else : print ( "修改失败,学生信息未找到!" ) # 查询单个学生信息 def find_name(): find_id_is = input ( "请输入要查询的学生学号:" ) flag = false index = 0 for i in range ( len (name_list)): if name_list[i][ 'id' ] = = find_id_is: flag = true index = i break if flag: print ( "学生查询到,学生信息为:" ) print (name_list[index][ 'id' ], name_list[index][ 'name' ], name_list[index][ 'sex' ], name_list[index][ 'phone' ]) else : print ( "学生未找到!" ) def main(): exit_name = true while exit_name: display_menu() key = get_choice() if key = = '1' : add_name() elif key = = '2' : del_name() elif key = = '3' : re_name() elif key = = '4' : find_name() elif key = = '5' : find_all() elif key = = '6' : exit_name = false else : print ( "请输入正确的数值!" ) main() |
以上所述是小编给大家介绍的用python实现学生管理系统详解整合,希望对大家有所帮助,如果大家有任何疑问请给我留言,小编会及时回复大家的。在此也非常感谢大家对服务器之家网站的支持!
原文链接:https://blog.csdn.net/hsunnyc/article/details/89097679