# coding:utf-8
"""
学生信息库
"""
students = {
1: {
'name': 'dewei',
'age': 33,
'class_number': 'A',
'sex': 'boy'
},
2: {
'name': '小慕',
'age': 10,
'class_number': 'B',
'sex': 'boy'
},
3: {
'name': '小曼',
'age': 18,
'class_number': 'A',
'sex': 'girl'
},
4: {
'name': '小高',
'age': 18,
'class_number': 'C',
'sex': 'boy'
},
5: {
'name': '小云',
'age': 18,
'class_number': 'B',
'sex': 'girl'
}
}
def check_user_info(**kwargs):
if 'name' not in kwargs:
return '没有发现学生姓名'
if 'age' not in kwargs:
return '没有发现学生姓名'
if 'sex' not in kwargs:
return '没有发现学生姓名'
if 'class_number' not in kwargs:
return '没有发现学生姓名'
return True
def get_all_students():
for id_, value in students.items():
print('学号: {},姓名{},年龄{},性别{},班级{}'.format(
id_, value['name'], value['age'], value['sex'], value['class_number']
))
return students
# result = get_all_students()
# print('----', result)
def add_student(**kwargs):
check = check_user_info(**kwargs)
if check != True:
print(check)
return
id_ = max(students) + 1
students[id_] = {
'name': kwargs['name'],
'age': kwargs['age'],
'sex': kwargs['sex'],
'class_number': kwargs['class_number']
}
# add_student(name='小白', age=19, class_number='A', sex='boy')
# get_all_students()
def delete_student(student_id):
if student_id not in students:
print('{}并不存在'.format(student_id))
else:
user_info = students.pop(student_id)
print('学号是{}, {}同学的信息已经被删除了'.format(student_id, user_info['name']))
# delete_student(1)
# add_student(name='小白', age=19, class_number='A', sex='boy')
# get_all_students()
def update_student(student_id, **kwargs):
if student_id not in students:
print('并不存在这个学号:{}'.format(student_id))
check = check_user_info(**kwargs)
if check != True:
print(check)
return
students[student_id] = kwargs
print('同学信息更新完毕')
update_student(1, name='dewei.zhang', age=33, class_number='A', sex='boy')
get_all_students()
def get_user_by_id(student_id):
return students.get(student_id)
print(get_user_by_id(3))
def search_users(**kwargs):
values = list(students.values())
key = None
value = None
result = []
if 'name' in kwargs:
key = 'name'
value = kwargs[key]
elif 'sex' in kwargs:
key = 'sex'
value = kwargs['sex']
elif 'class_number' in kwargs:
key = 'class_number'
value = kwargs[key]
elif 'age' in kwargs:
key = 'age'
value = kwargs[key]
else:
print('没有发现搜索的关键字')
return
for user in values:
if user[key] == value:
result.append(user)
return result
print('---------')
# users = search_users(age=18)
users = search_users(sex='girl')
print(users)