std::thread 的并发测试

mz5111089 — Tue, 12 Jan 2021 11:41:06 +0800

std::thread 的并发测试，测试两方面的性能： 1 并发同步锁的最优位置 2 并发最优线程数量直接上代码： void Ticket::Sell(const int tickets) { this->tickes = tickets; clock_t start, end; start = clock(); vector threadLst; for (int i = 0; i < 36; ++i) { threadLs

QMap 之 swap 特性

mz5111089 — Fri, 30 Aug 2019 09:53:04 +0800

QMap mp1; mp1.insert(1,2); mp1.insert(2,3); QMap mp2; mp2.swap(mp1); qDebug()<

Android抽奖实现

mz5111089 — Wed, 17 Oct 2018 16:57:27 +0800

第一章：实现简易抽奖 1.1 实现步骤 1.2 程序示例第一步： TextView lotteryNumberTv = findViewById(R.id.lotteryView); 第二步： Random random = new Random(); 第三步： int n = random.nextInt(100); 第四步： lotteryNumberT...

Android 实践一 hello world

mz5111089 — Tue, 21 Aug 2018 12:15:10 +0800

activity_main.xml ： <?xml version="1.0" encoding="utf-8"?> <android.support.constraint.ConstraintLayout xmlns:android="http://schemas.android.com/apk/res/android" xmlns:app="ht...

初识Android第一坑，预览不可见

mz5111089 — Mon, 20 Aug 2018 18:18:45 +0800

<resources>  <style name="AppTheme" parent="Base.Theme.AppCompat.Light.DarkActionBar">  ...

vs 汇编输出到控制台

mz5111089 — Tue, 07 Aug 2018 20:55:33 +0800

代码写到一定量，了解下汇编先 .386 .model flat, stdcall option casemap :none includelib kernel32.lib includelib masm32.lib ExitProcess PROTO STDCALL:DWORD StdOut PROTO STDCALL:DWORD .data HelloWorld db "Hello...

KMeans算法实现

mz5111089 — Thu, 31 May 2018 23:55:08 +0800

闲得，自己琢磨了KMeans算法，记录下。原理网络一大把，不再累述# -*- coding: utf-8 -*- """ Created on Wed May 16 23:02:51 2018 @author: mz """ import math import random from sklearn import datasets import numpy as np import copy...

Python 解析器模式

mz5111089 — Thu, 29 Mar 2018 19:58:14 +0800

# -*- coding: utf-8 -*- """ Created on Thu Mar 29 19:26:13 2018 @author: mz """ class Context(object): def SetContect(self, rhs): self.context = rhs def GetContext(self): ret...

Python 访问者模式

mz5111089 — Thu, 29 Mar 2018 19:25:27 +0800

# -*- coding: utf-8 -*- """ Created on Thu Mar 29 16:52:56 2018 @author: mz """ class Aggregate(object): def __init__(self): self._elmlst = [] def Attach(self, elm): sel...

Python 迭代模式

mz5111089 — Thu, 29 Mar 2018 15:28:31 +0800

# -*- coding: utf-8 -*- """ Created on Thu Mar 29 11:43:05 2018 @author: mz """ class Iterator(object): def Next(self): pass def HasNext(self): pass def First(self): ...

Python 建造者模式

mz5111089 — Thu, 29 Mar 2018 11:00:20 +0800

# -*- coding: utf-8 -*- """ Created on Thu Mar 29 10:19:38 2018 @author: mz """ class Director(object): def Build(self, builder): builder.BuildFloor() builder.BuildWindow...

Python 享元模式

mz5111089 — Wed, 28 Mar 2018 20:55:32 +0800

# -*- coding: utf-8 -*- """ Created on Wed Mar 28 20:41:17 2018 @author: mz """ class Share(object): def __init__(self): self.d = {} def Attach(self, key, value): if key...

Python 原型模式

mz5111089 — Wed, 28 Mar 2018 20:33:21 +0800

# -*- coding: utf-8 -*- """ Created on Wed Mar 28 19:41:57 2018 @author: mz """ from copy import copy, deepcopy class Prototype(object): def Clone(self): pass def DeepClone(sel...

Python 观察者模式

mz5111089 — Wed, 28 Mar 2018 19:40:11 +0800

# -*- coding: utf-8 -*- """ Created on Wed Mar 28 18:50:47 2018 @author: mz """ #observer class Boss(object): def __init__(self): self.obj = []; def Attach(self, employee): ...

Python 模板方法

mz5111089 — Tue, 27 Mar 2018 17:14:49 +0800

# -*- coding: utf-8 -*- """ Created on Tue Mar 27 17:08:14 2018 @author: mz """ class Template(object): def Excute(self): self.ReadyRead() self.ReadyWrite() def Read...

Python 外观模式

mz5111089 — Tue, 27 Mar 2018 17:06:48 +0800

# -*- coding: utf-8 -*- """ Created on Tue Mar 27 16:56:43 2018 @author: mz """ class Facade(object): def TradeWar(self): a = ASubject() b = BSubject() c = CSubject() ...

Python 单例模式

mz5111089 — Tue, 27 Mar 2018 11:54:44 +0800

# -*- coding: utf-8 -*- """ Created on Mon Mar 26 19:40:24 2018 @author: mz """ import threading class Singleton(object): _instance_lock = threading.Lock() def __init__(self): pass ...

Python 代理模式

mz5111089 — Mon, 26 Mar 2018 19:34:49 +0800

# -*- coding: utf-8 -*- """ Created on Mon Mar 26 19:17:20 2018 @author: mz """ class Person(object): def ShowLove(self): pass class Girl(Person): def ShowLove(self): pass ...

Python 命令模式

mz5111089 — Mon, 26 Mar 2018 18:51:23 +0800

# -*- coding: utf-8 -*- """ Created on Mon Mar 26 17:17:02 2018 @author: mz """ class ICommand(object): def __init__(self, rhs): self.rcv = rhs def Excute(self): pass c...

Python 备忘录模式

mz5111089 — Sun, 18 Mar 2018 00:49:07 +0800

Created on Sun Mar 18 00:30:51 2018 @author: mz """ class Original(object): def save(self, state): print("save status: %s" %(state)) self.__status = state def get(se...

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