#encoding=utf8
__author__ = 'Administrator'
#如果是直接运行文件的话
if __name__=="__main__":
print("main")
#怎么做性能测试
import time
def timer(reptimes,func,*pargs,**kargs):
start=time.clock()
for i in range(reptimes):
func(*pargs,**kargs)
return time.clock()-start
def test(test):
[i for i in range(test)]
print(timer(100,test,100))
#字符串格式化
print("{0}-{1}-{2}".format(1,1,1))
print("{name}-{age}".format(name="name",age="age"))
#代替linq
x=range(10)
print(str(x))
#解析表达式 速度最快
x1=[i for i in x if i%2==0]
print(x1)
x2=x[0::2]
print(x2)
x3=list(map((lambda i:i%2==0 and i or None),x))
print(x3)
x4=list(filter(lambda i:i%2==0,x))
print(x4)
#普通类
class Person(object):
def __init__(self,name,age):
self._name=name
self._age=age
@property
def name(self):
return self._name
@name.setter
def name(self,value):
self._name=(value+"...")
@name.deleter
def name(self):
raise RuntimeError("no")
@staticmethod
def Run(someone):
if isinstance(someone,Person):
print("run")
else:
raise RuntimeError("只有人能跑")
def __str__(self):
return "my name is "+self._name+" i'm "+str(self._age)
john=Person("john",11)
print(john)
Person.Run(john)
#Person.Run(1)
john.name="john"
print(john)
#del john.name
#演示继承
class Man(Person):
def __init__(self,name,age,sex):
super(Man,self).__init__(name,age)
self.sex=sex
def __str__(self):
return super(Man,self).__str__()+self.sex
man=Man("man",21,"男")
print(man)
from abc import abstractmethod,abstractproperty,ABCMeta
#抽象类
class abClass():
__metaclass__=ABCMeta
@abstractmethod
def abMethod(self):
pass
@abstractproperty
def abPr(self):
pass
#abEntity=abClass()
#演示AOP
class trace(object):
def __init__(self,func):
self.func=func
def __call__(self, *args, **kwargs):
print("------begin------")
print(dir(self.func))
print(self.func.__code__)
self.func(*args,**kwargs)
print("----------end----------")
#演示AOP
def mydecorator(func):
def _mydecorator(*pargs,**kargs):
print("ffff")
res=func(*pargs,**kargs)
return res
return _mydecorator
def complexDecorator(name):
def _mydecorator(func):
def _mydecorator(*pargs,**kargs):
print(name)
res=func(*pargs,**kargs)
return res
return _mydecorator
return _mydecorator
@complexDecorator("bw")
@mydecorator
@trace
def demoTrace():
print("me")
demoTrace()
posted @ 2011-06-02 15:15 brightwang 阅读(34) 评论(0)
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