import os.path
import string

class_text = []


def menu():  # 菜单
    print("请选择如下功能：")
    print("1.添加学员；")
    print("2.删除学员；")
    print("3.修改学员信息；")
    print("4.查询学员信息；")
    print("5.显示所有成员信息；")
    print("6.保存学员信息；")
    print("7.退出系统；")


filename = 'student.txt'


def main():
    while True:
        menu()
        choice = int(input('请选择您需要的功能序号：\n'))
        if choice in [1, 2, 3, 4, 5, 6, 7]:
            if choice == 7:
                answer = input('您确定要退出系统？y/n\n')
                if answer == 'y' or answer == 'Y':
                    print('感谢您的使用，祝您生活愉快，再见！！')
                    break
                else:
                    continue
            elif choice == 1:  # 添加学员
                insert()
            elif choice == 2:  # 删除学员
                delete()
            elif choice == 3:  # 修改学员信息
                modify()
            elif choice == 4:  # 查询学员信息
                search()
            elif choice == 5:  # 显示所有成员信息
                show()
            elif choice == 6:  # 保存学员信息
                save()
        else:
            print("没有该选项，请输入正确数字！！")


def insert():  # 1 添加
    global class_text
    while True:
        name = input("请输入学员姓名：")
        if not name:
            break
        sex = input("请输入学员性别：")
        nub = int(input("请输入学员手机号："))
        student = {"name": name, "sex": sex, "nub": nub}
        class_text.append(student)
        answer = input("是否继续添加？y/n\n")
        if answer == 'y' or answer == 'Y':
            continue
        else:
            break
    print("学员信息已录入")


def save():  # 6 保存
    print("保存成功")


def delete():  # 2 删除
    global class_text
    name = input('请输入要删除的学生的姓名:')
    for student in class_text:
        if student['name'] == name:
            class_text.remove(student)
            print("删除成功！")
            return 0
    print('无学生信息')
    return None


def modify():  # 3 修改
    global class_text
    name = input('请输入要修改的学员的姓名：')
    for student in class_text:
        if student['name'] == name:
            print('找到学生信息，可以修改他的相关信息了！')
            student['name'] = input('请重新输入姓名：')
            student['sex'] = input('请重新输入性别：')
            student['nub'] = input('请重新输入手机号：')
            print("修改成功!!!!")
            return 0
    print("不存在该学生信息，请检查学生姓名后重新输入！")
    return None


def search():  # 4 查询
    global class_text
    name = input("请输入要查询的学生姓名：")
    for student in class_text:
        if student['name'] == name:
            print("姓名：{}\n性别：{}\n手机号：{}".format(student["name"], student['sex'], student['nub']))
            return 0
    print("查询失败，请输入正确姓名!")


def show():  # 5 显示
    global class_text
    print("%-10s%-5s%-5s" % ("姓名", "性别", "手机号"))
    for student in class_text:
        print("%-10s%-5s%-5s" % (student["name"], student["sex"], student["nub"]))


if __name__ == '__main__':
    main()