python进阶_技术问答

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python进阶

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岳阳白少

class Person(object):
def __init__(self, name, gender, **kw):
self.name = name
self.gender = gender
#self.__dict__.update(kw)
#for k,v in kw.iteritems():
# setattr(self,k,v)
for i in kw:
setattr(self,i,kw[i])
p = Person('Bob', 'Male', age=18, course='Python')
print p.age
print p.course

0 5-6 python中获取对象信息

2017-11-23

netfox

t = (t2 - t1) * 1000 if unit=='ms' else (t2 - t1)相当于
if unit =='ms':
t=(t2-t1)*1000
else:
t=t2-t1
print 'call %s() in %f %s'%(f.__name__,t,unit)

1 2-13 python中编写带参数decorator

2017-11-23

龖敒

看装饰器难受了两天，看到你们都跳过我就放心了，我都为我的智商捉急

2 3-1 python中模块和包的概念

2017-11-23

qq太阳雨

def performance(unit):
def fn(f):
def ft(x):
a = time.time()
f(x)
b = time.time()
print 'call %s() in %s %s'%(f.__name__,(b-a),unit)
return f(x)
return ft
return fn

0 2-13 python中编写带参数decorator

2017-11-23

qq太阳雨

import time
def performance(unit):
def fn(f):
def ft(x):
a = time.time()
f(x)
b = time.time()
print 'call %s() in %s %s'%(f.__name__,(b-a),unit)
return f(x)
return ft
return fn

0 2-13 python中编写带参数decorator

2017-11-23

韩晓先生

import math

def is_sqr(x):
return math.sqrt(x) in range(1,11)

print filter(is_sqr, range(1, 101))

0 2-6 python中filter()函数

2017-11-23

慕粉214706866

德玛西亚人绝不退缩

1 1-1 课程介绍

2017-11-23

慕UI4278194

class Person(object):
def __init__(self, name, gender, birth, **kwargs):
self.name = name
self.gender = gender
self.birth = birth
for key,value in kwargs.items():
setattr(self,key,value)
xiaoming = Person('Xiao Ming', 'Male', '1990-1-1', job='Student')

0 4-4 python中初始化实例属性

2017-11-22

慕大仙

昏迷了1个小时，醒了再看一遍就懂了

2 2-14 python中完善decorator

2017-11-22

慕雪1113944

完全看不懂，md

2 2-9 python中闭包

2017-11-22

zhixiang_w

mmp！mmp！mmp!

1 2-13 python中编写带参数decorator

2017-11-22

锋行烈

class Person(object):
__count = 0
def __init__(self, name):
self.name = name
Person.__count += 1
@classmethod
def how_many(cls):
return cls.__count

print Person.how_many()
p1 = Person('Bob')
print Person.how_many()

0 4-10 python中定义类方法

2017-11-22

锋行烈

python3.x :

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

5 4-9 python中方法也是属性

2017-11-22

锋行烈

class Person(object):

__count = 0

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

p1 = Person('Bob')
p2 = Person('Alice')

try:
print(Person.__count)
except AttributeError:
print("AttributeError")

python3.x

0 4-7 python中类属性和实例属性名字冲突怎么办

2017-11-22

锋行烈

class Persons(object):
def __init__(self, name, gender, birth, **kw):
self.name = name
self.gender = gender
self.birth = birth
for k, v in kw.items():
setattr(self,k,v)

xiaoming = Persons('Xiao Ming', 'Male', '1990-1-1', job='Student')

python3.x

0 4-4 python中初始化实例属性

2017-11-22

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课程须知: 本课程是Python入门的后续课程 1、掌握Python编程的基础知识 2、掌握Python函数的编写 3、对面向对象编程有所了解更佳

老师告诉你能学到什么？: 1、什么是函数式编程 2、Python的函数式编程特点 3、Python的模块 4、Python面向对象编程 5、Python强大的定制类

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