python进阶_技术问答

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慕用8912214

def __str__(self):
return '(Student: %s, %s, %s)' % (self.name, self.gender, self.score)

__repr__ = __str__

0 6-2 python中 __str__和__repr__

2018-01-27

慕用8912214

print(list(filter(lambda x:x==x.strip('__'),dir(s))))

0 5-6 python中获取对象信息

2018-01-27

慕用8912214

def __init__(self, name, gender, **kw):
self.name = name
self.gender = gender
for k in kw:
setattr(self, k, kw[k])

1 5-6 python中获取对象信息

2018-01-27

慕用8912214

class BStudent(BasketballMixin, Student):
pass

class FTeacher(FootballMixin, Teacher):
pass

0 5-5 python中多重继承

2018-01-27

慕用8912214

print isinstance(t, Person)
print isinstance(t, Student)
print isinstance(t, Teacher)
print isinstance(t, object)

0 5-3 python中判断类型

2018-01-27

慕用8912214

class Teacher(Person):

def __init__(self, name, gender, course):
super(Teacher, self).__init__(name, gender)
self.course = course

0 5-2 python中继承一个类

2018-01-27

慕先生9011031

真的非常感谢大家的评论才能让我看懂，谢谢大家

4 2-9 python中闭包

2018-01-27

慕粉3727450

因为我们编写的类都继承于object, object中有__str__方法

2 6-1 python中什么是特殊方法

2018-01-27

慕用8912214

class Person(object):
__count = 0
@classmethod
def how_many(cls):
return cls.__count

def __init__(self, name):
self.name = name
Person.__count +=1

0 4-10 python中定义类方法

2018-01-27

慕用8912214

#python3
#p1.get_grade = types.MethodType(fn_get_grade,p1)

2 4-9 python中方法也是属性

2018-01-27

慕神9871321

为神魔sqrt前面得有math.求大神指教

2 2-3 python把函数作为参数

2018-01-27

慕用8912214

#encoding:utf-8

def __init__(self, name, score):
self.name = name
self.__score = score
def get_grade(self):
if self.__score < 60:
return 'C-不及格'
elif self.__score >= 80:
return 'A-优秀'
else:
return 'B-及格'

0 4-8 python中定义实例方法

2018-01-27