python进阶_技术问答

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python进阶

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clhp

简单，扼要

0 5-1 python中什么是继承

2015-06-01

weibo_用户51002425_0

import time
def performance(unit):
def decorator(f):
def dec1(n):
print 'call %s() in %s %s' %(f.__name__,time.asctime(),unit)
return f(n)
return dec1

return decorator

0 2-13 python中编写带参数decorator

2015-05-31

Hell0

class Fib(object):
__fib = [0,1]
def __init__(self):
pass
def __call__(self,num):
while len(Fib.__fib) < num:
Fib.__fib.append(sum(Fib.__fib[-2:]))
return str(Fib.__fib[0:num])

1 6-9 python中 __call__

2015-05-28

Hell0

__fib = [0,1,1,2,3]
def __init__(self, num):
self.num = num
while len(Fib.__fib)<num:
Fib.__fib.append(sum(Fib.__fib[-2:]))

def __str__(self):
return str([Fib.__fib[i] for i in range(0, self.num)])

def __len__(self):
return self.num

0 6-4 python中 __len__

2015-05-28

Zhenyu

functools is weird

0 2-15 python中偏函数

2015-05-27

JGOD

@score.getter
def grade(self):
if self.score < 60:
return "C"
elif self.score > 80:
return "A"
else:
return "B"

0 6-7 python中 @property

2015-05-27

JGOD

class Fib(object):
lst = [0]
def __init__(self, num):
a,b = 0,1
while num-1:
a,b = b,a+b
self.lst.append(a)
num -= 1
print self.lst

def __len__(self):
return len(self.lst)

f = Fib(10)
print f
print len(f)

0 6-4 python中 __len__

2015-05-27

Hell0

class Person(object):
def __init__(self, name, gender, birth, **kw):
self.name = name
self.gender = gender
self.birth = birth
for key, value in kw.items():
setattr(self,key,value)
...

0 4-4 python中初始化实例属性

2015-05-27

yuanziyiyi

def calc_prod(lst):
def chenji(x,y):
return x*y
def chen():
return reduce(chenji,lst)
return chen

f = calc_prod([1, 2, 3, 4])
print f() 哈哈哈哈竟然让我写出来了

0 2-8 python中返回函数

2015-05-27

Thorpe

import math

def is_sqr(x):
return (math.sqrt(x)) in range(1,101)

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

#我这个写法简直投机取巧...

2 2-6 python中filter()函数

2015-05-26

慕少8971399

高阶函数好复杂

3 2-11 python中decorator装饰器

2015-05-26

xixixii

发现不能在类的初始化函数中定义通过'self.attr'来控制类属性而应该用‘类名.attr’来操作类属性

0 4-6 python中创建类属性

2015-05-26

weibo__黄振杰__0

很好，希望可以更新快点

0 5-1 python中什么是继承

2015-05-25

Came

self.name=name
self.gender=gender
for k,v in kw.iteritems():
setattr(self,k,v)

0 5-6 python中获取对象信息

2015-05-25

伟伯

class Fib(object):
def __init__(self):
pass
def __call__(self, num):
f = [0, 1]
for i in range(num-2):
f.append(f[i] + f[i+1])
return f

f = Fib()
print f(10)

0 6-9 python中 __call__

2015-05-24

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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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