#创建列表
stu_info = []
#打印功能菜单
def print_menu():
    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：显示所有学员信息：")
    print("6：保存学员信息：")

#添加学生信息（1）
def add_stu_info():
    name = str(input("请输入您的姓名："))
    sex = str(input("请输入您的性别："))
    phone = int(input("请输入您的电话："))
    new_info = dict()  # 定义一个字典
    new_info['name'] = name
    new_info['sex'] = sex
    new_info['phone'] = phone
    stu_info.append(new_info)

#删除学生信息（2）
def del_stu_info(student):
    if len(student) != 0:
        del_num = int(input('请输入要删除的序号：')) - 1
        if del_num < len(stu_info):
            del student[del_num]
            print(f'删除指定序号：{del_num+1}成功')
        else:
            print('要删除的序号有误')
    else:
        print('学生信息表为空')

#修改学员信息（3）
def rev_stu_info():
    if len(stu_info) != 0:
        rev_num = int(input('请输入要修改学生的序号：')) - 1
        if rev_num >= len(stu_info):
            print("要修改的序号有误")
        else:
            rev_name = input('请输入学员姓名：')
            rev_sex = input('请输入学员性别：')
            rev_phone = input('请输入学员手机号：')
            print("修改该学员信息成功。姓名：{}，性别：{}，手机号：{}".format(rev_name,rev_sex,rev_phone))
            stu_info[rev_num]['name'] = rev_name
            stu_info[rev_num]['sex'] = rev_sex
            stu_info[rev_num]['phone'] = rev_phone
    else:
        print('学生信息表为空')

#查询单个学员信息（4）
def cha_stu_info(stu_info):
    if len(stu_info) != 0:
        del_num = int(input('请输入要查询的学员序号：'))
        if del_num <= len(stu_info):
            print('序号  姓名  性别  手机号码')
        for temp_info in stu_info:
            print("%d  %s  %s  %s" %(del_num,temp_info['name'],temp_info['sex'],temp_info['phone']))
            print(f'查询指定学员序号：{del_num}成功')
        else:
            print('要查询的序号有误')
    else:
        print('学生信息表为空')
#查找全部学生信息（5）
def show_stu_info():
    if len(stu_info) != 0:
        print('学生的信息如下：')
        print('=' * 30)
        print('序号  姓名  性别  手机号码')
        i = 1
        for temp_info in stu_info:
            print("%d  %s  %s  %s" %(i,temp_info['name'],temp_info['sex'],temp_info['phone']))
            i += 1
    else:
        print('学生信息表为空')


def main():
    while True:
        print_menu()
        key = input("请输入您需要的功能序号：")
        if key == "1":
            add_stu_info()
        elif key == "2":
            del_stu_info(stu_info)
        elif key == "3":
            rev_stu_info()
        elif key == "4":
            cha_stu_info(stu_info)
        elif key == "5":
            show_stu_info()
        elif key == "6":
            show_stu_info()
        elif key == '7':
            quit_confirm = input('真的要退出么？（Yes/No）：')
            if quit_confirm == 'Yes' or quit_confirm == 'yes' or quit_confirm == 'YES':
                break
            elif quit_confirm == 'No' or quit_confirm == 'no' or quit_confirm == 'NO':
                continue
            else:
                print('输入有误，请重新输入')
        else:
            print('输入有误，请重新输入')
if __name__ == '__main__':
    main()