lanrion

mysql>use mysql
mysql>update user set password=password("new_pass") where user="root";
mysql>flush privileges;

lanrion

1，下载 http://www.oracle.com/technetwork/java/javase/downloads/jdk7-downloads-1880260.html

2.下载好以后解压，并移动文件的位置

sudo tarzxvf ./jdk-7-linux-i586.tar.gz -C /usr/lib/jvm
cd/usr/lib/jvm

将jvm 下的文件夹名称改为 java-7-sun

lanrion

基于 IBus 框架

 1、安裝IBus框架：

  在终端中输入：

         sudo apt-get install ibus ibus-clutter ibus-gtk ibus-gtk3 ibus-qt4

  有些版本自带了此输入法框架，则不需要安装。

lanrion

Alt+F2 : 快速打开搜索栏。

Alt+Tab : 不同应用之间的切换，选中某一个，再Alt+~ 即可放大当前栏目。

下载了Sublime Text 之后，我们需要建立一个快捷命令

sudo mv Sublime\ Text\ 2 /opt/
sudo ln -s /opt/Sublime\ Text\ 2/sublime_text /usr/bin/sublime

参考 http://my.oschina.net/yexingkong/blog/140726

lanrion

微信的信息接收与回复，两者是独立的。

信息接收

共同点在于：都有 ToUserName，FromUserName，CreateTime，MsgType， 这四个字段。

在信息接收方面，分为“普通消息”、“事件推送”，“语音识别结果(微信用户发送语音，微信服务器翻译成文本，只不过比语音消息多一个识别结果字段：Recognition)”。

“普通消息”：http://mp.weixin.qq.com/wiki/index.php?title=接收普通消息

• 文本消息(通过“Content”关键字来获取文本内容，这点比较重要，也是使用比较多的场合)
• 图片消息

lanrion

class ApplicationController < ActionController::Base

  ...
  #Problem:
  #In rails 3.0.1+ it is no longer possible to do this anymore;
  #  rescue_from ActionController::RoutingError, :with => :render_not_found
  #
  #The ActionController::RoutingError thrown is not caught by rescue_from.
  #The alternative is to to set a catch-all route to catch all unmatched routes and send them to a method which renders an error
  #As in http://techoctave.com/c7/posts/36-rails-3-0-rescue-from-routing-error-solution

lanrion

fork 了某个开源项目，发了PR后，需要更新master的代码的做法：

git remote add --track master upstream git://github.com/upstreamname/projectname.git
 
git fetch upstream
 
git merge upstream/master

注意：upstream 是定义名称。

lanrion

In August 2007 a hacker found a way to expose the PHP source code on facebook.com. He retrieved two files and then emailed them to me, and I wrote about the issue:

http://techcrunch.com/2007/08/11/facebook-source-code-leaked/

It became a big deal:

http://www.techmeme.com/070812/p1#a070812p1

The two files are index.php (the homepage) and search.php (the search page)

lanrion

class Dragon; end

# 使用 def 定義 class method
Dragon.instance_eval do
  def foo
    puts "bar"
  end
end
Dragon.foo # bar

lanrion

; Comments start with semicolons.

; Clojure is written in "forms", which are just
; lists of things inside parentheses, separated by whitespace.
;
; The clojure reader  assumes that the first thing is a
; function or macro to call, and the rest are arguments.
;
; Here's a function that sets the current namespace:
(ns test)