def menu()://用函数来输入
print('-' * 40)
print('通讯录管理系统V1.0')
print('1、添加学员信息')
print('2、删除学员信息')
print('3、修改学员信息')
print('4、查询学员信息')
print('5、遍历所有学员信息')
print('6、退出系统')
print('-' * 40)
info = []
def add_student():
info_dict = {}
info_dict['name'] = input('请输入学员姓名：')
info_dict['age'] = int(input('请输入学员年龄：'))
info_dict['mobile'] = input('请输入学员电话：')
global info
info.append(info_dict)
print('学员信息添加成功')
print(info)
def del_student():
name = input('请输入您要删除学员的姓名：')
for i in info:
if i['name'] == name:
info.remove(i)
print('学员信息删除成功')
print(info)
break
else:
print('暂未查询到您要删除的学员信息')
def modify_student():
name = input('请输入您要修改学员的姓名：')
global info
for i in info:
if i['name'] == name:
i['name'] = input('请输入修改后的姓名：')
i['age'] = input('请输入修改后的年龄：')
i['mobile'] = input('请输入修改后的电话：')
print('学员信息修改成功')
print(info)
break
else:
print('暂未查询到您要修改的学员信息')
def show_student():
name = input('请输入您要查询学员的姓名：')
for i in info:
if i['name'] == name:
print(f'学员姓名:{i["name"]}，学员年龄:{i["age"]}，学员电话：{i["mobile"]}')
break
else:
print('暂未查询到您要查询的学员信息')
def show_all():
for i in info:
print(f'学员姓名:{i["name"]}，学员年龄:{i["age"]}，学员电话：{i["mobile"]}')
while True:
menu()
user_num = int(input('请输入您要操作的功能序号：'))
if user_num == 1:
add_student()
elif user_num == 2:
del_student()
elif user_num == 3:
modify_student()
elif user_num == 4:
show_student()
elif user_num == 5:
show_all()
elif user_num == 6:
print('感谢您使用通讯录管理系统V1.0')
break
else:
print('信息输入错误，请重新输入...')
