def remove(cls):
name = input('''%s's name:''' % cls)
if lib.database_search(name, "%s" % cls):
answer = input(
'do you want to delete the record:%s y to continue' % name)
if answer == 'y':
lib.database_del(name, '%s' % cls)
else:
print('no such %s!' % cls)
def evaluate(self):
Student.show_lesson(self)
choice_ev = input('please input the lesson you want to evaluate:')
if choice_ev in self.lesson:
lesson = lib.database_search(choice_ev, 'Lesson')
print(lesson.name, lesson.date, lesson.teacher)
choice_1 = input(
'are you sure to evaluate this lesson? y to continue')
if choice_1 == 'y':
choice_2 = input(
'which kind of evaluation do you want to give? g for good b for bad'
)
choice_3 = input('please input you comment:')
comment = '%s,%s,%s' % (lesson.name, choice_2, choice_3)
teacher = lib.database_search(lesson.teacher, 'Teacher')
teacher.evaluation.append(comment)
if choice_2 == 'b':
teacher.asset -= 50
lib.database_update(teacher)
def add_student():
name = input('''Student's name:''')
if lib.database_search(name, 'Student'):
print('Student is exist.')
else:
gender = input('''student's gender:''')
age = input('''student's age:''')
password = input('''student's password:''')
record = ' %s,%s,%s,%s' % (name, gender, age, password)
answer = input('''Do you want to add student %s? y to continue''' %
record)
if answer == 'y':
lib.database_write(Student(name, password, gender, age))
def learn_lesson(self):
Student.show_lesson(self)
while True:
lesson = input('please input lesson to learn:')
if lesson in self.lesson:
time_start = datetime.datetime.now().__str__()
print(lesson)
time_end = datetime.datetime.now().__str__()
study_lesson = lib.database_search(lesson, 'Lesson')
study_fee = study_lesson.fee
study_teacher = lib.database_search(study_lesson.teacher,
'Teacher')
study_time = '%s,%s' % (time_start, time_end)
self.record[lesson].append(study_time)
study_teacher.asset += study_fee
lib.database_update(self)
lib.database_update(study_teacher)
break
elif lesson == 'q':
break
else:
print("please choose the right lesson!")
def add_lesson():
name = input('lesson name:')
if lib.database_search(name, 'Lesson'):
print('lesson is exist.')
else:
date = input('lesson date:')
fee = input('lesson fee:')
teacher = input('lesson teacher:')
if lib.is_num(fee):
fee = lib.is_num(fee)
record = '%s,%s,%s,%s' % (name, date, fee, teacher)
answer = input('Do you want to crate lesson:%s y to continue' %
record)
if answer == 'y':
lib.database_write(Lesson(name, date, fee, teacher))
else:
print('input right number!')
def add_teacher():
name = input('''teacher's name:''')
if lib.database_search(name, 'Teacher'):
print('Teacher is exist.')
else:
gender = input('''teacher's gender:''')
age = input('''teacher's age:''')
asset = input('''teacher's assets:''')
if lib.is_num(asset):
asset = lib.is_num(asset)
record = ' %s,%s,%s,%s' % (name, gender, age, asset)
answer = input(
'''Do you want to add teacher %s? y to continue''' %
record)
if answer == 'y':
lib.database_write(Teacher(name, gender, age, asset))
else:
print('input right number!')