Dr. Lai, Zhihua | ZLai

Life / Blog

1 - New Blog using Wordpress - 2011-07-03_17.29PM.html


服务器提供商免费提供了一个50MB的安全FTP (https), 考虑到不能浪费了， 先就装了一个免费的博客 WordPress。

本来fasthosts 的 package 也有三种不同等级的博客供使用，但是都是要钱的，每个月几磅钱， 不划算，还是自己DIY。

blog.zhihua-lai.com 是在网站上的， 以前用PHP写的， 自己做的就是难看， 自已越看越不满意， 也没有时间去重写；暂时就放那里。以后主要写英文的。

中文的游记什么的。就考虑到放在这个WORDPRESS里。看得比较舒服。

这个地址比较长： https://secure14.prositehosting.co.uk/drlai/blog/
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2 - Two Tricks of Delphi - tricks.txt

Two tricks of making integer computation faster in Delphi.

1. Two integers a and b, to compute a mod b, where b is power of two (two, four, eight ... etc)...

in delphi, you write
result := a mod b;
in this case, to make it faster,
you can write
result := a and (b - 1); // b >= 2, and power of 2.

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3 - Random thoughts - 2010-10-20_19:43PM.html

已经很久没有体会到天天忙禄后坐下来把饭给热了，，泡个茶，听音乐， 放松休息。

这样的日子很充实，有目标， 有动力。 经常对自己说，再给我两三年， 我一定稳定下来， 到时候最大的理想便是把家人接到英国， 风风光光的玩一段时间。

也许忙禄不会让自己去遗憾。已经有一阵时日了。已经大悟。不好的还好过去了。只是恨自己为什么不明白的早一些。张老师说我不成熟，找女朋友找这么快。 其实也无所谓，他的看法不重要， 重要的是我好， 我想明白。我没有解释，因为我觉得没有必要。

淡定， 是我现在需要的。

学生问我，你多少岁了， 如此年轻。我笑笑，岁月已经让我苍老了许多，外表和内心。

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4 - My Facebook Interview Saga - 2010-04-03_19.26PM.html

My Facebook Interview Saga

The following is a retelling of the interview process I underwent with Facebook at 1/April/2010 for a Software Engineer position. I didn't get the job. It was my first interview process I have ever gone through and, despite reading all the other interview recaps others have written about companies like Amazon, Microsoft, or Google, I wasn't quite prepared. In any case, I hope the following is useful to others who may be preparing for the whole job game. Note: I've been careful to leave anything sensitive out of this entry for NDA purposes.


2010-March-23: Derek (Technical Sourcer at Facebook) contacted me by email:




Then i replied:




Then we added each other at google talk and here was the chat:




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5 - 1499 - 1499.txt

1.韩国学者认为：孙悟空其实是韩国神仙，因为他用的是棒子！

2. 再一次祝福那些借网络发泄的朋友们：握紧手中的中华铅笔，一往情深注视笔杆上的字：2B！
3. 把寂寞刻在酒瓶子上，喝进膀胱里，尿出来，让寂寞洒满一地！
4. 用7%耕地养活占世界22%人口根本不算什么成就。看看日本，用世界1.5%的人口产出了世界90%的毛片才叫牛B。
5. 我凝视你地眼睛 发现了深黑色的寂寞,你说那是因为夜太短.你凝视我的眼睛, 发现了火红的刺么忽,我说那是因为睡电褥子睡地——上火....
6. 生活中，每个人都是演员，而装B的人只是其中的佼佼者
8. 我喜欢闷骚女人。在别人面前闷。在我面前骚。
9. 我学会了喝酒，是想把寂寞和悲伤给淹没，没想到，他们他妈学会了游泳....
10. 古人说，一寸长一寸强，一寸小一寸巧——我有时候强，有时候巧。
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6 - Windows Scripting - 2008-12-19_02.11AM.html

Power of windows command shell

I managed to use just pure windows command shell scripting to process around 500M text data ....
pure means not external exe/com files needed,,, just windows built-in commands (e.g. for, call, if ... )
amazing,,, windows scripting (*.bat, *.cmd) can just do almost anything... it is as powerful as linux shell script...

ok ,, here is the task....
there is a csv file,, let's say A.csv, which contains something like this...
1 5 2 18 0 24 18 0 54
2 5 3 18 1 14 18 1 44
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7 - YES!! - 2008-12-10_19.20PM.html

    %yes

    y

    y

    y

    y (Ctrl+C)

    %

yes .... now i will talk about something about "yes" utility...
in linux,, usually located at /usr/bin/, there is a file called "yes"
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8 - Spectrum Master - 2008-12-10_13.59PM.html

Spectrum Master
I got to play around with this machine these days... Spectrum Master MS2721B, MS2723B, MS2724B....



When I finished the measurements,,, i had to copy around 100M data from the SM to USB stick.
anyway, it took longer than i expect (maybe it does not support USB2.0 transfer)...

Why not use FTP??? I tried,,, and i couldn't login... i couldn't find access details on the manual or internet ..
What the hell is the account name and password to login to vxWorkds 5 ftp?
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