http://stackoverflow.com/questions/2391679/why-do-we-need-virtual-methods-in-c 简言之,声明基类时,而实际指向派生类.如果没有virtual,那么对象就无法使用这个方法, 调用时,调用的还是基类的对应的方法.…

转载  虚拟键值表, virtual key code Virtual-Key Codes VK_LBUTTON (01)Left mouse button VK_RBUTTON (02)Right mouse button VK_CANCEL (03)Control-break processing VK_MBUTTON (04)Middle mouse button (three-button mouse) VK_XBUTTON1 (05)Windows 2000/XP: X1 mouse…

Android tp的虚拟按键处理 现在在越来越多的Android的手机都是虚拟按键来操作,但是对于开发者来说可能会关心Android对虚拟按键如何处理的.对Linux熟悉的人可能会说,it's easy, 调用input_report_key().OK,你说的没有错误,但是在android中,google让你对策略和驱动有了更加深入的了解. APP------->           Framework------->                          Kernel-----…

---恢复内容开始--- 作用 有时你希望定义一个类成员,使它的使用完全独立于该类的任何对象.通常情况下,类成员必须通过它的类的对象访问,但是可以创建这样一个成员,它能够被它自己使用,而不必引用特定的实例.在成员的声明前面加上关键字static(静态的)就能创建这样的成员.如果一个成员被声明为static,它就能够在它的类的任何对象创建之前被访问,而不必引用任何对象.你可以将方法和变量都声明为static.static 成员的最常见的例子是main( ) .因为在程序开始执行时必须调用main(…

对于一个规则引擎中的脚本代码编辑器是非常关键的,因为UI控件直接使用对象是规则维护者,关系到用户体验,在选用脚本编辑器的功能时除了满足代码的编辑的基本编辑要求外,功能还需要包含;语法着色,错误提示,代码格式化,代码折叠,自动代码提示,自动补全代码等功能.(目前技术无法做到JS加断点;边调试边运行) 经过众多开源产品的代码编辑器对比与功能测试,ICSharpCode.TextEditor 是JS脚本编辑器最佳选择. 一.语法着色 JS语法着色XML,对JS关键字进行着色,并可以扩展自指定义关键字着…

Given a set of words (without duplicates), find all word squares you can build from them. A sequence of words forms a valid word square if the kth row and column read the exact same string, where 0 ≤ k < max(numRows, numColumns). For example, the wor…

https://leetcode.com/problems/add-and-search-word-data-structure-design/ Design a data structure that supports the following two operations: void addWord(word) bool search(word) search(word) can search a literal word or a regular expression string co…

In this lesson you will learn to talk about sports. 课上内容(Lesson) # How many different sports can you name? swim, skiing,badminton # Pick a sport and describe to your tutor how it is played. Let me introduce basketball.  it is a ball sports. Five peop…

In this lesson you will learn to talk about technology and innovation. 课上内容(Lesson) What is your favorite brand of mobile phone, laptop and TV? I like Iphone of mobile, Apple of laptop and Sony TV. Do you spend a lot of money on technology? Yes , I d…

课上内容(Lesson) Lamb let us does introduce myself. Make a "hangman" game at warm-up . How to correct introduce myself and other people. What? How to play the game? Okay, look at the below pictrue. We need guess wahtever letter. if we guess it, teac…

In this lesson you will learn how to recognize animals and describe feeling. 课上内容(Lesson) 词汇(Key Word ) attack  n.攻击:抨击 bamboo  n.竹子:竹 dolphin  n.海豚 eagle  n.鹰 forest  n. 森林 frightening  adj. 令人恐惧的:引起突然惊恐的 gorilla  n. 大猩猩 insect  n. 昆虫:卑鄙的人 lift  vt.…

In this lesson you will learn to talk about foot and drink for a healthy diet. 课上内容(Lesson) What do you do to stay healthy? meeting Lamb , I knew correct time I'm terrible. Because I'm missed class for 2:00.I forgot the right time/the correct time.Af…

In this lesson you will learn to talk about languages. 课上内容(Lesson) mother tongue: Chinese official language:  Chinese mandarin Sichuan Dialect Accent Asia  亚洲 亚洲(字源古希腊语:Ασία:拉丁语:Asia),曾译作“亚细亚洲”和“亚西亚洲”,是七大洲中面积最大,人口最多的一个洲.其覆盖地球总面积的8.7%(或占总陆地面积的29.4%).…

In this lesson you will learn to talk about dates and times. 课上内容(Lesson) Tell your tutor about a festival in your country. What's it called? My country has Tomb-Sweeping day 清明节, Dragon Boat Festival 端午节, Mid-autumn 中秋节, National day 国庆节 When is it?…

In this lesson you will learn to talk about people's interests. 课上内容(Lesson) interest v. 使…感兴趣(interest的第三人称单数形式) interests 兴趣:利益(interest的复数) interesting   adj.  形容事和物 interested   adj.  形容人 What day is it today? 今天星期几 What month is this month?  这个月…

In this lesson you will learn to talk about what happened.  谈论发生什么? 课上内容(Lesson) Nosy  好管闲事Noise  噪声     # noise pollution [pə'luʃən] 噪音污染Noisy  吵闹 # 表示闭嘴的几种说法 be quiet  保持安静 shut up  住口:关闭:妥藏起来 stop talking  别说话;住口:停止说话 zip it 闭嘴 # 表示我的观点或看法的表达方式 fr…

In this lesson you will learn to describe what you see. 课上内容(Lesson) # How's the weather today? 今天的天气怎么样? It's Sunny Day What kind of weather do you like? 你喜欢什么样子的天气? I like rain.Because I like listening to raining very much at stay in # 想一个地方,告诉哪里的人…

In this lesson you will learn to tell the time.  说时间 课上内容(Lesson) at       time; at 7:30; at midday; festival at Christmas   # 具体时间 Time < on      on weeks; on Sunday; on Monday morning; My birthday; April 2nd      # 具体某一天,要用on ,example: December 11t…

In this lesson you will learn to talk about likes and dislikes. 课上内容(Lesson) # talk about hobby Do you have a hobby?  Yes, I do. What are your hobbies?  Playing games.Reading books.Watching Movies How long have you had your hobby?  你有多长时间的爱好?   It's…

In this lesson you will learn to describe a daily routine. (日常生活) 课上内容(Lesson) 词汇(Key Word ) contraction 缩写 Confucius  孔子 toothbrush  n. 牙刷 frie rice with eggs  鸡蛋炒饭 noodle 面条 play sports 做运动 dumplings  n. 饺子(dumpling的复数) sweet dumpling  汤圆 rice dump…

In this lesson you will learn to talk about countries and languages.  本节课你将学习到关于谈论城市和语言 课上内容(Lesson) Spring Festival  春节(中国农历正月初一) Lantern Festival  元宵节,灯节 watch firework show  看烟火表演 developing   发展中 developed   发达 idiom   n. 成语,习语:土话 slang   n. 俚语:行…

In this lesson you will learn to talk about the weather. 本节课将学习到关于天气 课上内容(Lesson) 词汇(Key Word ) # 关于表述天气的词 snowing v. 下雪(snow的ing形式) snowy  adj. 下雪的,多雪的:被雪覆盖的:洁白无瑕的 sunny   adj. 阳光充足的,和煦的:快活的:性情开朗的 windy adj. 多风的,有风的:腹胀的:吹牛的 hot  adj. 热的:辣的:热情的:激动的:紧…

In this lesson you will learn to give instructions. 这节课你将将学会给出指示. 课上内容(Lesson) 词汇(Key Word ) bell pepper  灯笼椒   # bell n. 铃,钟:钟声,铃声:钟状物 soy sauce  酱油 vinegar   n.醋 chili  n. 红辣椒,辣椒 onion n.洋葱    #   green onion 葱花,叶用葱 garlic n.大蒜 ginger n.姜 ring bell…

In this lesson you will learn to say what you need. 课上内容(Lesson) twin size bed  单人床 elevator     n. 电梯:升降机:升降舵:起卸机 lift vt. 举起:提升:鼓舞:空运:抄袭vi. 消散:升起:耸立n. 电梯:举起:起重机:搭车 a double room  一个双人间 a single room  一个单人间 hotel  酒店 reception  接待 词汇(Key Word ) door…

In this lesson you will learn to ask for things in shops  这节课您将学习如何在商店中寻找东西 课上内容(Lesson) 你通常去哪里购物? Where do you usually go shopping? I usually shop online. Sometime shop Outlets     n. 奥特莱斯(指曾在美国盛行的一种工厂直销零售商店集合的大型购物场所) brand store  品牌店:专卖店 词汇(Key Wor…

In this lesson you will learn to ask about prices. 本节课你将学习询问关于价格 课上内容(Lesson) one piece of     two pieces of          bread/meat/cake or cakes one bottle of     three bottles of       milk/water a bunch of       five bunches of       banana or banana…

In this lesson you will learn to talk about workplaces. 课上内容(Lesson) My English Teacher name is Russell. He has five people in his family. There are two daughters , young sister is 27,old sister is 29. ex-wife and 9 month baby and he. He come from Af…

In this lesson you will learn to say your phone number and address.  这节课讲学习说你的手机号码和地址. 课上内容(Lesson) # 询问三个关于tutor的问题 How many class do you today?  你今天有多少课? How did you go to Meten?你是怎么去的美联? What do you usually have for dinner ? 你经常吃晚餐吃什么食物? What did…

In this lesson you will learn how to give reasons for something you've done. 课上内容(Lesson) Why do people...?  人们为什么...? play sports     Because people need health  人们需要健康 get married     Because people have a family    人们想拥有一个家庭 study English  Because…

In this lesson you will learn to answer simple questions about yourself.  本节课讲学到回答关于自己的一些简单问题 课上内容(Lesson) Hello -->  Hi Thank you -->  Thanks I'm fine -->  I'm OK My name is ... -->  I'm # Meeting People What's you nickname? You can call me .…