python进阶_技术问答

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海阔飞

def __cmp__(self, s):
if self.score<s.score:
return 1
elif self.score>s.score:
return -1
elif self.score==s.score:
if self.name<s.name:
return -1
else:
return 1

0 6-3 python中 __cmp__

2015-04-22

海阔飞

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

0 6-2 python中 __str__和__repr__

2015-04-22

qq_Primrose_1

class Person(object):
count=0
def __init__(self,name):
self.name=name
Person.count = Person.count+1

0 4-6 python中创建类属性

2015-04-22

qq_Jun_2

我这种方法效率挺低的：
def __init__(self, num):
if num==1 :
self.numbers=[0]
elif num==2:
self.numbers=[0,1]
else :
g=Fib(num-1)
g.numbers.append(g.numbers[-1]+g.numbers[-2])
self.numbers=g.numbers

0 6-4 python中 __len__

2015-04-21

海阔飞

class BStudent(BasketballMixin,Student):
pass

class FTeacher(FootballMixin,Teacher):
pass

0 5-5 python中多重继承

2015-04-21

海阔飞

import json

class Students(object):
def read(self):
return r'["TIM","Bob","Alice"]'

s = Students()

print json.load(s)

0 5-4 python中多态

2015-04-21

Xtick

http://www.liaoxuefeng.com/wiki/001374738125095c955c1e6d8bb493182103fac9270762a000/0014186131194415d50558b7a1c424f9fb52b84dc9c965c000#0
廖老师的官网上的python

1 2-9 python中闭包

2015-04-21

sstlltss

感觉@真是萌萌哒，函数：快来@我！

5 2-11 python中decorator装饰器

2015-04-21

慕丝1297058

到后面越来越懵了

0 4-4 python中初始化实例属性

2015-04-21

qq_Danielcoo

期待新课，期待进入实战

0 7-1 课程总结

2015-04-20

海阔飞

@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

2015-04-20

740941151

import math

def is_sqr(x):
for i in range(1,11):
if x == (i*i):
return True

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

0 2-6 python中filter()函数

2015-04-20

740941151

def format_name(s):
return s[0].upper()+s[1:len(s)].lower()

print map(format_name, ['adam', 'LISA', 'barT'])

0 2-4 python中map()函数

2015-04-20

海阔飞

class Person(object):
count=0
def __init__(self,name):
#self.name=name
Person.count=Person.count+1

0 4-6 python中创建类属性

2015-04-20

海阔飞

class Person(object):
pass

p1 = Person()
p1.name = 'Bart'

p2 = Person()
p2.name = 'Adam'

p3 = Person()
p3.name = 'Lisa'

L1 = [p1, p2, p3]
L2 = sorted(L1,lambda x,y:cmp(x.name,y.name))

print L2[0].name
print L2[1].name
print L2[2].name

1 4-3 python中创建实例属性

2015-04-20

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