def create_socket(self):
try:
self.socket = socket.socket()
self.socket.connect(self.addr)
P('连接服务器成功...')
except Exception as e:
P('create socket exception %s' % e)
def action_B(self):
with lock:
P('%s got lock in action_B %s' % (self.name, time.ctime()))
time.sleep(2)
with lock:
P('%s got lock again in action_B %s' %
(self.name, time.ctime()))
time.sleep(1)
def read_fun(socket, mask):
data = socket.recv(1000).decode('utf8')
if data:
print('received：%s' % data)
socket.send(data.upper().encode('utf8'))
else:
P('no data received....')
def command_fanout(self):
while True:
cmd = input('>>>').strip()
if cmd == 'exit':
break
cmd, file = cmd.split()
if hasattr(self, cmd): # 使用反射.
cmd_func = getattr(self, cmd)
cmd_func(cmd, file)
else:
P('Command %s not found.' % cmd)
def foo(q):
P('foo id q:%s' % id(q))
q.put('foo')
q.put('123')
def app(environ, start_response):
P(environ)
P(start_response)
start_response('200 OK', [('Content-Type', 'text/html')])
return [b'<h1>Hello wsgi server</h1>']
"""
from pprint import pprint as P
def hanoi(n, p1, p2, p3):
"""汉诺塔游戏，移动的次数为2^1 -1 次。
:param n:
:param p1:
:param p2:
:param p3:
:return:
"""
step_list = []
if n == 1:
step = (p1, p3)
step_list.append(step)
else:
step_list.extend(hanoi(n - 1, p1, p3, p2)) # 将n-1个盘子从p1移动到p2
# print('%s--->%s' % (p1, p3)) # 将第n个盘子从p1,移动到P3
step = (p1, p3)
step_list.append(step)
step_list.extend(hanoi(n - 1, p2, p1, p3)) # 将n-1个盘子从p2移动到p3
return step_list
if __name__ == '__main__':
n = eval(input("请输入盘子个数:"))
step_list = hanoi(n, 1, 2, 3)
P(step_list)
print(len(step_list))
print('__set__ called.')
print('self:%s, instance:%s,value:%s' % (self, instance, value))
if not isinstance(value, self.field_type):
raise TypeError('%s expected type:%s, but input type:%s' % (self.field_name, self.field_type, type(value)))
else:
instance.__dict__[self.field_name] = value
class People:
name = Typed('name', str)
age = Typed('age', int)
salary = Typed('salary', float)
def __init__(self, name, age, salary):
self.name = name
self.age = age
self.salary = salary
p1 = People('egon', 18, 20000.)
p1.name
# P(p1.__dict__)
# P(People.__dict__)
P(p1.__dict__)
p1.name = 'sam'
P(p1.__dict__)
# p2 = People(23.0, 25, 200002.0)
@license: Apache Licence @contact: [email protected] @site: @software: PyCharm @file: 类的装饰器.py @time: 2018/5/20 11:31 """ from pprint import pprint as P def deco(obj): print('------------------%s' % obj) obj.x = 1 obj.y = 1 obj.z = 1 return obj @deco # test = deco(test), 装饰器等价于高阶函数。 def test(): '''test fun''' print('test函数运行。') P(test.__dict__) # test() # @deco # Foo = deco(Foo) # class Foo: # pass # # f1 = Foo() # print(f1.__dict__) # P(Foo.__dict__)
@version: v1.0 @author: Richard @license: Apache Licence @contact: [email protected] @site: @software: PyCharm @file: 类的装饰器-修订版.py @time: 2018/5/20 12:18 """ from pprint import pprint as P def Typed(**kwargs): print('111:%s' % kwargs) def deco(obj): for k, v in kwargs.items(): setattr(obj, k, v) return obj return deco @Typed(name='egon', age=30) # ==>1、Typed(x=1,y=2,z=3)-->deco. 2、@deco(Foo) class Foo: pass P(Foo.__dict__)
# encoding: utf-8 """ @version: v1.0 @author: Richard @license: Apache Licence @contact: [email protected] @site: @software: PyCharm @file: server.py @time: 2018/6/3 14:28 """ from pprint import pprint as P import socket server = socket.socket() server.bind(('127.0.0.1', 8089)) server.listen(10) while True: client, addr = server.accept() buf = client.recv(1024) client.sendall(bytes('HTTP/1.1 201 OK\r\n\r\n', 'utf8')) data = open('test.html', 'rb').read() P(data) client.sendall(data)
""" @version: v1.0 @author: Richard @license: Apache Licence @contact: [email protected] @site: @software: PyCharm @file: 进程间通信demo01.py @time: 2018/5/29 8:19 """ from pprint import pprint as P import multiprocessing import time, os def foo(q): P('foo id q:%s' % id(q)) q.put('foo') q.put('123') if __name__ == '__main__': q = multiprocessing.Queue() p = multiprocessing.Process(target=foo,args=(q,)) p.start() P('main id q:%s' % id(q)) P('q.get:%s' % q.get()) P('q.get:%s' % q.get())
def accept_fun(socket, mask):
client_skt, client_addr = socket.accept()
client_port = client_addr[1]
P('client coming:%s' % client_port)
SELECTOR.register(client_skt, selectors.EVENT_READ, read_fun)
def mul_n(n):
mul = 1
for i in range(1, n + 1):
mul *= i
P('%s!=%s' % (n, mul))
def sum_n(n):
tot = 0
for i in range(1, n + 1):
tot += i
P('sum=%s' % (tot))
def remove_ele(l):
while l:
a = l[-1]
P('removing...%s' % a)
time.sleep(1)
l.remove(a)
else:
instance.__dict__[self.field_name] = value
def deco(**kwargs):
def wrapper(obj):
for k, v in kwargs.items():
setattr(obj, k, Typed(k, v))
return obj
return wrapper
@deco(name=str, age=int, salary=float, gender=str)
class People:
def __init__(self, name, age, salary, gender):
self.name = name
self.age = age
self.salary = salary
self.gender = gender
p1 = People('egon', 18, 20000., 'F')
# P(p1.__dict__)
P(People.__dict__)
P(p1.__dict__)
# p1.name = 'sam'
# P(p1.__dict__)
# p2 = People(23.0, 25, 200002.0)
print('__get__ called..[%s].....[%s]' % (instance, owner))
if instance is None:
return self
res = self.func(instance)
setattr(instance, self.func.__name__, res) # 第一次计算，后续从实例属性中取。
return res
class Room:
def __init__(self, name, lenght, width):
self.name = name
self.length = lenght
self.width = width
# @property # ===> area = property(area)
@LazyProperty # ===> area = LazyProperty(area) #这就是描述符。
def area(self):
return self.width * self.length
@LazyProperty
def test(self):
return 'test'
r1 = Room('wc', 1, 1)
# P(Room.__dict__)
# print(r1.__dict__)
P(r1.area)
P(Room.area)
# P(Room.test)
from pprint import pprint as P
class Foo:
pass
class Bar:
pass
# f1 = Foo()
#
# print(type(f1))
# print(type(Foo))
# print(type(Bar))
def __init__(self, name, age):
self.name = name
self.age = age
FFo = type('FFo', (object,), {'x':1, '__init__': __init__})
print(type(FFo))
P(FFo.__dict__)
# f1 = type(FFo)
#
# print(f1.x)
#
ff1 = FFo('sam', 32)
P(FFo.__dict__)
print(ff1.name)
print(ff1.age)
# encoding: utf-8 """ @version: v1.0 @author: Richard @license: Apache Licence @contact: [email protected] @site: @software: PyCharm @file: 多线程利器-队列demo01.py @time: 2018/5/27 16:10 """ from pprint import pprint as P import threading, time import queue # 线程队列 q = queue.Queue(5) #FIFO #= [1, 2, 3, 4, 5] q.put(12) q.put('sam') q.put('eva') q.put((1,2)) q.put({'eva': 1.5}, block=False) # 如果满了则不阻塞，抛出异常。 while q: data = q.get(block=False)# 如果空了则不阻塞，抛出异常。 print(data) P('-------')