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Dec. 21, 2016

《春天》欧亨利 英文原文

It was a day in March. Never, never begin a story this way when you write one. No opening could possibly be worse. It is without imagination. It is flat and dry. But here it is allowable, because the following sentence is too extravagant to be thrown in the face of the reader without preparation.

Sarah was crying over the menu. Think of a New York girl crying over a menu card! To explain this you will probably guess that the lobsters were all out, or that she had ordered onions, or that she had just come from a cinema. But all your guesses are wrong. Sarah was crying over the menu she was going to type. That was her work - typing. She was a typewriter and worked at home. The greatest success of Sarah's battle with the world was the deal she made with Schulenberg's Home Restaurant. The restaurant was next door to the old building where she had a room. One evening, after dining at Schulenberg's Sarah took the menu away with her. It was written in almost unreadable handwriting, neither English nor German, and if you were not careful you began with the dessert and ended with the soup. The next day Sarah showed Schulenberg a beautifully typewritten menu. Schulenberg was so pleased that he made an agreement with her. She would type menus for the twenty-one tables in the restaurant - a new menu for each day's breakfast, lunch and dinner - and in return for this Schulenberg would send three meals a day. Both were satisfied with the agreement. Schulenberg's clients now knew what the food they ate was called. And Sarah had food during a cold, dull winter, which was the main thing for her. Then the calendar lied, and said that spring had come. Spring comes when it comes. New York City was still in the power of winter with frozen snows of January still lying in the streets. One afternoon Sarah was shivering in her bedroom. She had no work to do except Schulenberg's menu cards. Sarah sat in her rocking chair and looked out the window. The calendar on the wall kept crying to her: "Springtime is here, Sarah -springtime is here, I tell you. Look at me, Sarah, my figures show it. You've got a neat figure yourself, Sarah - a nice springtime figure - why do you look out the window so sadly?" Sarah's room was at the back of the house. Looking out the window she could see the window-less brick wall of the box factory in the next street. But it seemed to her that she was looking at a grassy lane shaded with cherry trees, raspberry bushes and roses. Last summer Sarah had gone into the country and fallen in love with a farmer. (In writing your story never go backwards like this. It is bad art, and destroys interest.) Sarah stayed two weeks at Sunnybrook Farm. There she learned to love old Farmer Franklin's son Walter. It was in this shaded lane that Walter told her about his love. And together they had sat and made a crown of dandelions for her hair. He had praised the effect of the yellow flowers against her brown hair; and she had left the dandelions there, and walked back to the house swinging her straw hat in her hands. They were to marry in the spring - at the very first signs of spring, Walter said. And Sarah came back to the city to hit her typewriter. A knock at the door drove away Sarah's dreams of that happy day. A waiter had brought the rough draft of the Home Restaurant's menu for the next day. Sarah sat down to her typewriter. Today, there were more changes on the menu than usual and the spirit of spring filled the whole list. Sarah's fingers danced over the typewriter. Just above the desserts came the list of vegetables. Carrots and peas, asparagus on toast, tomatoes and corn, cabbage -and then - Sarah was crying over the menu. Tears from the depths of despair rose in her heart and gathered to her eyes. Down went her head on the little typewriter; and the keyboard rattled a dry accompaniment to her sobs. For she had received no letter from Walter in two weeks, and the next thing on the menu was dandelions - dandelions with some kind of egg - but the egg didn't matter! - dandelions, with whose golden flowers Walter had crowned her his queen of love and future bride - dandelions, the messengers of spring - reminder of her happiest days. But what a witch is Spring! Into the great cold city of stone and iron a message had to be sent. There was none to bring it but the little messenger of the fields with his rough green coat, the dandelion. By and by Sarah forced back her tears. The menu cards must be typed. But, still in a faint, golden light from her dandelion dream, she fingered the typewriter keys absently for a little while, her mind and heart in the meadow lane with her young farmer. But soon she came back to the stone lanes of Manhattan, and ,the typewriter began to rattle and jump like a motor car. At six o'clock the waiter brought her dinner and carried away the typewritten menu. When Sarah ate, she put aside, with a sigh, the dish of dandelions. Love may, as Shakespeare said, feed on itself: but Sarah could not force herself to eat the dandelions that reminded her of the happiest days of her life. At seven thirty the couple in the next room began to quarrel; the man in the room above looked for A on his flute; the gas light went a little lower; cats could be heard on the back fences. By these signs Sarah knew that it was time for her to read. She got out her book and started reading. The front door bell rang. The landlady answered it. Sarah listened. Oh, yes; you would, just as she did! And then a strong voice was heard in the hall below, and Sarah jumped for her door, leaving the book on the floor. You have guessed it. She reached the top of the stairs just as her farmer came up, three steps at a jump, and hugged her tightly. "Why haven't you written - oh, why?" cried Sarah. "New York is a pretty large town", said Walter Franklin. "I came in a week ago to your old address. I found that you had gone away on a Thursday. The police and I have been hunting you ever since". "But I've written to you!" cried Sarah. "Never got it!" "Then how did you find me?" The young farmer smiled a springtime smile. "I dropped into that Home Restaurant next door this evening", said he. "I don't care who knows it; I like a dish of some kind of greens at this time of the year. I ran my eye down that nice typewritten menu looking for something like that. When I got below cabbage I turned my chair over and shouted for the owner. He told me where you lived". "I remember", sighed Sarah, happily. "That was dandelions below cabbage". "I'd know the capital W above the line that your typewriter makes anywhere in the world", said Franklin. "Why, there's no W in dandelions", said Sarah, in surprise. The young man took the menu out of his pocket, and pointed to a line. Sarah recognised the card she had typed that afternoon. There was still a mark in the upper right-hand corner where a tear had fallen. But over the spot where one should have read the name of the meadow plant, the memory of their golden flowers had allowed her fingers to strike strange keys. Between the red cabbage and the stuffed green peppers was the following: "DEAREST WALTER, WITH HARD-BOILED EGG".

Springtime on the menu

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Dec. 18, 2016

人教版高一化学必修一 化学方程式总览

高一化学方程式总结

资料来源于网络和人教版高中化学必修一

一、钠及其化合物

1、钠与氧气:常温:4Na + O2 == 2Na2O 点燃:2Na + O2 Na2O2 2、钠与水反应:2Na + 2H2O == 2NaOH + H2↑ 离子方程式:2Na + 2H2O == 2Na++ 2OH-+ H2↑ 3、钠与硫酸反应:2Na + H2SO4 == Na2SO4+ H2↑ 4、氧化钠与水反应:Na2O+H2O == 2NaOH 5、过氧化钠与二氧化碳反应:2Na2O2 + 2CO2 == 2Na2CO3+ O2 6、过氧化钠与水反应:2Na2O2 +2H2O == 4NaOH + O2↑ 离子方程式:2Na2O2 +2H2O == 4Na+ + 4OH-+ O2↑ 7、NaOH溶液通入少量CO2:2NaOH +CO2 == Na2CO3 +H2O 离子方程式:2OH-+CO2 == CO3 2-+H2O NaOH溶液通入过量CO2:NaOH +CO2 == NaHCO3 离子方程式:OH-+CO2 == HCO3- 8、①向碳酸钠溶液滴入少量稀盐酸:Na2CO3+ HCl == NaHCO3 + NaCl 向稀盐酸溶液滴入少量碳酸钠:Na2CO3+ 2HCl == 2NaCl +CO2↑+H2O ②除去碳酸氢钠中混有的碳酸钠:Na2CO3 + CO2 + H2O == 2NaHCO3 ③碳酸钠与氢氧化钙:Na2CO3 +Ca(OH)2 == CaCO3 ↓+2NaOH ④碳酸氢钠与盐酸: NaHCO3 + HCl == NaCl +CO2↑+H2O ⑤少量碳酸氢钠溶液滴入氢氧化钙溶液中:NaHCO3 +Ca(OH)2 ==NaOH+CaCO3 ↓+H2O 少量氢氧化钙溶液滴入碳酸氢钠溶液中:2NaHCO3 +Ca(OH)2 == Na2CO3 +CaCO3 ↓+2H2O ⑥除去碳酸钠溶液中的碳酸氢钠:NaHCO3 + NaOH == Na2CO3 +H2O ⑦除去碳酸钠固体中的碳酸氢钠:2NaHCO3Na2CO3 +CO2↑+H2O ⑧鉴别碳酸钠和碳酸氢钠溶液:Na2CO3 +CaCl2 == CaCO3 ↓+2NaCl

二、铝及其化合物

1、铝与氧气的反应:4Al + 3O2 2Al2O3 2、铝与氧化铁反应(铝热反应):2Al + Fe2O3 2Fe + Al2O3 3、铝和稀盐酸:2Al +6HCl == 2AlCl3 +3H2↑ 离子方程式:2Al + 6H+ ==2Al3+ +3H2↑ 4、铝和NaOH溶液:2Al +2NaOH +2H2O == 2NaAlO2 +3H2↑ 离子方程式:2Al +2OH-+2H2O == 2AlO2- +3H2↑ 5、氧化铝和稀硫酸:Al2O3 +3H2SO4 == Al2(SO4)3 +3H2O 离子方程式:Al2O3 + 6H+ == 2Al3+ + 3H2O 6、氧化铝和NaOH溶液:Al2O3 + 2NaOH == 2NaAlO2 +H2O 离子方程式:Al2O3 + 2OH-== 2AlO2- + H2O 7、氢氧化铝和稀盐酸:Al(OH)3 +3HCl == AlCl3 +3H2O 离子方程式:Al(OH)3 +3H+ == Al3+ + 3H2O 8、氢氧化铝和NaOH溶液:Al(OH)3 + NaOH == NaAlO2 +2H2O 离子方程式:Al(OH)3 +OH-==AlO2-+ 2H2O 9、氢氧化铝受热分解:2Al(OH)3Al2O3 +3H2O

10、硫酸铝与氨水反应: Al2(SO4)3 +6NH3•H2O == 2Al(OH)3↓+ 3(NH4)2SO4 离子方程式: Al3+ + 3NH3•H2O == Al(OH)3↓+ 3NH4+ 11、AlCl3溶液中加入少量NaOH溶液:AlCl3 + 3NaOH ==Al(OH)3↓+ 3NaCl AlCl3溶液中加入过量NaOH溶液:AlCl3 + 4NaOH == NaAlO2+ 3NaCl+ 2H2O 12、往NaAlO2溶液中通入少量CO2:2NaAlO2 +CO2 + 3H2O == 2Al(OH)3↓ + Na2CO3 往NaAlO2溶液中通入过量CO2:NaAlO2 +CO2 + 2H2O == Al(OH)3↓ + NaHCO3 13、电解氧化铝:2Al2O3(熔融)4Al+3O2↑

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Dec. 15, 2016

Ubuntu  16.04安装WineQQ

Ubuntu 16.04,但是工作上的很多事情需要QQ联系,然而在Ubuntu上的WebQQ很是不好用,于是在网上搜索了好多个Linux版本的QQ,然而不是功能不全,就是界面丑到爆,要么就是不稳定;最后,找到了个人认为最好用的QQ—WineQQ国际版。

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Dec. 11, 2016

国产PHP网盘程序PHPDisk安装体验

PHPDISK网盘系统[简称:PHPDISK],是一套采用PHP和MySQL构建的网络硬盘(文件存储管理)系统,可替代传统的FTP文件管理。

友好的界面,操作的便捷深受用户的欢迎。 她是一套可用于网络上文件办公、共享、传递、查看的多用户文件存储系统。广泛应用于互联网、公司、网吧、学校等地管理及使用文件,多方式的共享权限,全方位的后台管理,满足从个人到企业各方面应用的需求。

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Dec. 10, 2016

Google国内开发者网站上线

今年的Google开发者大会在中国如期举行,遗憾的是,Google大陆区总裁Scott Beaumont被问及“何时返回国内”时,给出了“没有计划,没有什么好说”的答复。

虽然Google回到大陆还遥遥无期,总算有一件事可以让中国开发者们高兴起来,那就是为中国开发者而开设的Google Developers网站上线了。

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Dec. 5, 2016

Nextcloud11 beta2测试版发布

Nextcloud团队12月1日发布11 beta2版本,开放测试:

我们发布了Nextcloud 11的Beta 2,我们期待更多的反馈和错误报告! 关于为什么要测试的一些坚定的论点,请参阅我们早期的博客关于第一个测试版的文章。 该版本的目标是在本月晚些时候。帮助我们让Nextcloud 11稳定运转!我们特别感谢升级过程的测试,因为我们已经进行了严肃的检修。和上次一样,应用程序及其兼容性是另一个需要您测试的领域!如果你勇敢地在生产中测试,至少确保做一个数据库备份。并在Github报告在这里找到的任何问题。
测试版下载地址:Neztcloud11 beta2

Github:Nextcloud Github

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Dec. 4, 2016

ownCloud 9 视频介绍

[video width=“1280” height=“720” mp4=“https://img.orgleaf.com/2016/12/Guided-Tour-of-ownCloud-9.mp4” poster=“https://img.orgleaf.com/2016/12/S61204-14114676.jpg”][/video]

Dec. 3, 2016

文件共享软件公司ownCloud为何倒闭

你可能和我的想法一样:什么?大清亡了? 没错,2016年6月2日,ownCloud联合创始人Frank Karlitschek宣布他正在开始一个新的开源的基础设施即服务(IaaS)云项目和公司(就是Nextcloud)。同一天,ownCloud宣布其正在关闭其美国办事处。
ownCloud公司是(或者说曾经是)一家波士顿地区的向商务用户销售文件共享软件的公司。与其竞争对手Dropbox公司一样,为用户提供文件的存储和分享服务。 但这6月份的那个周四,这家经营五年的ownCloud公司不复存在了。只剩下位于德国的ownCloud GMBH保持运行,继续与新的对手-Nextcloud竞争。

和他的竞争对手不同,ownCloud公司的业务基于一款开源软件,这意味着每个人都可以免费下载ownCloud程序。如果你使用的是免费版(ownCloud.org),想要在企业中使用它,并需要更强大的商业功能,你就可以从ownCloud公司那儿购买企业版。 ownCloud Inc.总部位于马萨诸塞州列克星敦,拥有1000万美元的资金,包括两年前的630万美元。据ownCLoud公司介绍,其客户包括欧洲核研究实验室CERN; Meritus健康和阿尔伯特爱因斯坦医学院。

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Nov. 30, 2016

【分享】Linux常用命令

文章转自tshare365,作者wood-man
​#本文档仅罗列了一些常用命令及其使用频率较高的参数. #您对本文档的建议和意见,可加入“Linux运维技术交流 347163978”并“@木头人”,谢谢! #version 2.7  一、关于文件和目录的基本命令 #ls  -F  区分文件类型,通常目录加"/" 可执行加"*" -i  显示inode -l  长列表 -r  反序 -S  按大小排序 -X  按文件扩展名排序 -t  按修改时间排序 -lg 不显示UID -lG 不显示GID -lu 输出最后的访问时间 -lh 进率为1000,根据文件大小显示K、M、G  -ln 以数字替换UID和GID -d  显示目录即"." #stat 查看文件的所有信息(inode size 时间戳),但没有文件类型。 stat filename  #touch 改变文件的时间戳,但经常被用来创建空白文件 -c  什么也没有发生 -d  修改访问时间和修改时间,  格式 touch -d "yyyy-mm-dd hh:mm:ss"  filename -md  仅变更修改时间 -ad  仅变更访问时间  touch -t mdyHM filename 修改amc时间  touch -d "3 days ago" filename #支持昨天yesterday、tomorrow等  #file 查看文件类型,分成三类:文本、可执行、数据 file filename  #type 用于查看命令类型 type commond  #cat cat filename  查看文件内容 cat -n      每行加上序号,等效“nl filename” cat -s     连续多个空行压缩为一个空行 cat -T      用"^I"替换制表符 #nl  默认nl=“nl -b t” -b t 空行不计入行号 -n (ln,rn,rz)左对齐、右对齐、补零 -w  行号的位数 1

2

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Nov. 27, 2016

Ubuntu上通过openfire搭建XMPP服务器

因为打算写一篇ownCloud中xmpp聊天插件的教程,其中比较关键的一部分是搭建XMPP服务器。先提前从网上找了一个现成的教程,不过到时候我还是会亲自演示一遍的。

原教程比较老了,改了几个地方。

我已经按照如下教程顺利搭建成功。

1.首先登录到ubuntu server。在安装openfire 服务器之前,先确保你的系统已经更新到最新。然后输入下面的命令,一行一行执行,最后安装可用的更新

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