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股票的基本概念

总结一下股票相关名词以及作用, 包含中英文两种解释, 以便更清晰的掌握基础知识。

市盈率

股票的市盈率（Price-to-Earning Ratio，P/E或PER），指每股市价除以每股盈利（Earnings Per Share，EPS），通常作为股票是便宜或昂贵的指标。市盈率把企业的股价与其制造财富的能力联系起来。

市盈增长率 (PEG: Price/Earnings To Growth ratio)

市盈增長率(PEG)＝市盈率(P/E)÷年度每股盈利增長率(Annual EPS Growth Rate)

市净率（英语：Price-to-Book Ratio, P/B或PBR，股价净值比）

股票的市净率＝每股市价／每股净资产, 通常作为股票孰贱孰贵的指标之一。

换手率(Turnover Rate)

周转率(换手率)＝(某一段时期内的成交量)/(发行总股数)x100%

量比

量比是衡量相对成交量的指标。它是开市后每分钟的平均成交量与过去5个交易日每分钟平均成交量之比。

  1. 若是突然出现放量，量比指标图会有一个向上突破，越陡说明放量越大（刚开市时可忽略不计）。 若出现缩量，量比指标会向下走。
  2. 当量比大于1时,说明当日每分钟的平均成交量大于过去5日的平均值, 成交放大；交易比过去5日火爆；
  3. 当量比小于1时,说明当日成交量小于过去5日的平均水平。成交萎缩。

委比

委比=(委买手数-委卖手数)/(委买手数+委卖手数)×100%

  1. 委比值的变化范围为-100%到+100%,
  2. 当委比值为—100%时,它表示只有卖盘而没有买盘,说明市场的抛盘非常大;
  3. 当委比值为+100%时,它表示只有买盘而没有卖盘,说明市场的买盘非常有力。
  4. 当委比值为负时,卖盘比买盘大;
  5. 而委比值为正时,说明买盘比卖盘大。
  6. 委比值从—100%到+100%的变化是卖盘逐渐减弱、买盘逐渐强劲的一个过程。

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最近开始研究股票，感觉像是发现了新大陆, 新的概念和知识让我对这片领域异常憧憬。
人类活动或多或少的被经济或者说金钱影响，这些活动在时间纬度上相互交织，构成了
这个复杂而迷人的世界。

know the world better. 这是我一直以来的座右铭。在这句话的指引下，我坚持学习英语，
读各个领域的书，了解世界不同国家和地区的文化。而经济作为这个世界运转的基础，却
被我大意的错过了。在粗略的看了几本书之后，我对这片领域深深的吸引了。这片领域的
知识量相当大，有着多学科的为背景，汇集了世界上最聪明的人。

毫无疑问，这将成为今年的主要工作。第一个小目标是了解领域内所有知识。

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Just for fun

nobody can predict future, not even linus.

  1. Number One is: “Do unto others as you would want them to do unto you.” If you follow that rule, you’ll always know how to behave in any situation. Number Two is: “Be proud of what you do.” Number Three: “And have fun doing it.

  2. what I find to be unacceptable is when people, either leaders or followers, then try to impose their own world views on others.

  3. I’m a big believer in individual choice, which means that I think I should make my own decisions when it comes to moral issues.

  4. “Ain’t no time to hate.”

  5. What really sells, of course, is perception, not reality. Cruise liners sell the perception of freedom, of the salty seas, of good food and romance of Love Boat proportions.

  6. In fact, nobody even wants a computer. What everybody wants is this magical toy that can be used to browse the Web, write term papers, play games, balance the checkbook, and so on.

  7. And I, as a technologist, know that technology drives nothing. It is society that changes technology, not the other way around. Technology just sets the boundaries for what we can do, and how cheaply we can do it.

  8. my argument went, in order to understand the evolution of society, you have to understand what really motivates people. Is it money? Is it success? Is it sex? What fundamentally makes people do what they do?

  9. “that’s it: Survival. Your place in the social order. And entertainment.”

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Mac相关

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# mac启动ftp服务器
sudo -s launchctl load -w /System/Library/LaunchDaemons/ftp.plist
# mac检查占用80端口的进程
sudo lsof -n -i:80 | grep LISTEN

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最近找工作和一些其他事，总结出：

  1. 工作重点在后端, 在后端精通后，在考虑学习前端。
  2. 今年要在后端有所进展，包括网络／数据库／多线程／代码规范。
  3. 小公司大多不靠谱，领导层容易有偏见，工作辛苦而且
    技术得不到积累。 下一份工作一定要慎重。
  4. 保持对工作机会的敏感度。
  5. 对一些基础知识，要有自己的理解和总结。

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session 管理

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1. 新建session 
tmux new -s session_name  
2. 进入session  
tmux attach -t session_name  
3. 切换session
tmux switch -t session_name
4. 列出所有session  
tmux list-sessions  
5. 离开session
tmux detach (prefix + d)
6. 关闭session
tmux kill-session -t session_name

window管理

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1. 新建window  
tmux new-window (prefix + c)
2. 切换window
tmux select-window -t :0-9 (prefix + 0-9)
3. 重命名window
tmux rename-window (prefix + ,)

pane 管理

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1. 垂直拆分
tmux split-window (prefix + ")
2. 水平拆分
tmux split-window -h (prefix + %)
3. 交换
tmux swap-pane -[UDLR] (prefix + { or })
4. 选择
tmux select-pane -[UDLR]（prefix + [arrow]）
5. 最大化当前窗口/还原
tmux resize-pane (prefix + z)
6. 关闭最大窗口
tmux close-pane (prefix + x)

其他

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1. 加载配置文件
tmux source-file .tmux.conf
2. 复制 .tmux.conf
bind [ copy-mode
bind-key -t vi-copy 'v' begin-selection # Begin selection in copy mode.
bind-key -t vi-copy 'V' rectangle-toggle # Begin selection in copy mode.
bind-key -t vi-copy 'y' copy-selection # Yank selection in copy mode.
bind ] paste-buffer

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不打印日志

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scp file eli@192.168.0.xx > /dev/null 2>&1
# 2>&1 出错日志和输出日志

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the start-up of you

随着社会变化的加快，工作变为短期合同，为了适应变化，
书中推荐普通人也要像企业家一样来对待自己的职业生涯。
对我以后的职业有指导意义。

  1. Make a list of your key uncertainties, doubts, and questions you have about your career at the present moment. Make a list of the hypotheses you’re develop. Write out your current Plan A and Plan Z, and jot some notes about what possible Plan B moves might be in your current situation.

  2. Make a plan to develop more transferable skills, those skills and experiences that are broadly useful to potential other jobs. Writing skills, general management experience, technical and computer skills, people smarts, and international experience or language skills are examples of skills with high option value—that is, they are transferable to a wide range of possible Plan B’s.

  3. Begin on an experimental side project that you work on during some nights and weekends. Orient it around a skill or experience that is different but related—something that either enhances what you do now or can serve as a possible Plan B if your Plan A doesn’t work out. Ideally, collaborate on this project with someone else in your network.

  4. Establish an identity independent of your employer, city, industry. Reserve a personal domain name (yourname.com). Print up a second set of business cards with just your name on it and a personal email address.

  5. Reach out to five people who work in adjacent niches and ask them to coffee. Compare your plans with theirs. Keep up these relationships over time so you can access diverse information and so you’re in a better position to potentially pivot to those niches when necessary.

  6. World-class professionals build networks to help them navigate the world. No matter how brilliant your mind or strategy, if you’re playing a solo game, you’ll always lose out to a team.

  7. In alliances, resources and assistance flow both ways.

  8. The fastest way to change yourself is to hang out with people who are already the way you want to be.

  9. While most people have a small circle of close friends, they maintain a large circle of these valued acquaintances and colleagues. Relationship builders prioritize high-quality relationships over a large number of connections.

  10. The first is professional allies. Who would be in your corner in a conflict or when you come under stress? Whom do you invite to dinner to brainstorm career options? Whom do you trust and proactively try to work with if you can? From whom do you solicit feedback on key projects? Whom do you review life goals and plans with? These are your allies. Many people can maintain at most eight to ten strong professional alliances at any given point in time.

  11. The Strength of Weak Ties: The friends you don’t know very well are the ones who refer winning jobs. Weak ties can uniquely serve as bridges to other worlds and thus can pass on information or opportunities you have not heard about.

  12. Here we want to explore how opportunities flow through congregations of these people. Those with good ideas and information tend to hang out with one another. You will get ahead if you can tap the circles that dish the best opportunities. It’s how people have gotten ahead for centuries.

  13. 1)Overall, it’s probably not as risky as you think.

    2)Is the worst-case scenario tolerable or intolerable?

    3)Can you change or reverse the decision midway through? Is Plan B doable?

  14. Remember: If you don’t find risk, risk will find you.

  15. Who You Know Is What You Know.

  16. Remember Iwe: an individual’s power is raised exponentially with the help of a network.

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细雪

有助于了解抗战时期，日本上层社会的状态。 类似红楼梦，有助于了解日本文化。
在家族、阶级观念、文化修养等方面与中国文化神似，但在接受西方外来事物上，
日本文化保持着迥然不同的开放态度。

  1. 我一见那花，就像被它吸了进去似的。
  2. 丹生夫人平常和幸子总说大阪话，今天也许是为了做陪客吧，竟然满口东京话，仿佛变成了另外一个人，简直无法说一句知心话了。
  3. 遗产
  4. 可是鹤子由于很早就主持家务，根本没有空闲时间去旅行。再说她觉得哪里都比不上大阪，看戏可以看雁治郎，上馆子可以去播半或鹤屋，对她来说，这就心满意足了，不愿意去陌生的地方。
  5. 大家一致同意。吃完晚饭，贞之助、幸子、悦子和妙子都聚集在供着赏月果品的那间日本式屋子的廊檐下，让阿春磨墨，摊开卷纸，贞之助写了一首和歌，幸子和悦子每人写一首俳句，妙子在这方面不擅长，她就画了一幅松林悬月的水墨写生画。
  6. 尽管有一个时期他不愿意让雪子回来，但现在反倒有点内疚了。因此他无微不至地吩咐女佣准备好洗澡水，让雪子一到家就能入浴；又说晚饭一定在火车上吃过了，不过临睡前还得吃点东西，叫人取出两三瓶雪子喜欢的白葡萄酒，亲手抹去瓶子上的尘埃，查看出厂的年代。
  7. 和呆在大阪的时候不一样了，无论做什么，没有人批评指摘，她爱怎样就怎样，轻松愉快得很。再说东京这个地方尊重女子的个性，不受社会风气的拘束，比如穿衣服吧，可以挑自己合适的穿，这些都比大阪好。
  8. 现在想起来，一个月以前这个妹妹打扮出这样一副意态可嘉的模样而且拍了这样的照片，似乎并非偶然，几乎带点不祥的兆头。

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  1. 2017-03-15 细雪
  2. 2017-04-06 the start-up of you
  3. 2017-06-25 Just for Fun : The Story of an Accidental Revolutionary