marshluca

# Reincarnation for classes

class Class
  def reincarnate
    buried = Object.__send__(:remove_const, self.name)
    Object.const_set(self.name, Class.new(buried))
  end
end

class Abc

marshluca

require 'rubygems' 
require 'active_record'

ActiveRecord::Base.establish_connection(
  :adapter => "mysql",
  :host => "localhost",
  :database => "myapp",
  :username => "root",
  :password => "root",
  :encoding => "utf8")

marshluca

- (void)viewDidLoad {
        [super viewDidLoad];
	
	UIImageView* campFireView = [[UIImageView alloc] initWithFrame:self.view.frame];
	campFireView.animationImages = [NSArray arrayWithObjects:	
									[UIImage imageNamed:@"campFire01.gif"],
									[UIImage imageNamed:@"campFire02.gif"],
									[UIImage imageNamed:@"campFire03.gif"],
									[UIImage imageNamed:@"campFire04.gif"],
									[UIImage imageNamed:@"campFire05.gif"],

marshluca

require "net/http"
require "json"

USER = 'marshluca@163.com'
PASS = '123456'
API_URL = "http://api.renren.com/restserver.do"

def base_params
  {
    "api_key" => "f2570a570d56439784bfb69dbda699d1", 

marshluca

#import "PostViewController.h"
#import "WoyiAppDelegate.h"
#import "ImagePickerController.h"


@implementation PostViewController


#pragma mark -
#pragma mark Initialization

marshluca

# ruby

def compute(current,remain)
  result = 0
  if remain == 0
    result = current == 'a' ? 1 : 0
  else
    for n in ['a','b','c','d']      
      result += compute(n,remain-1) if n != current
    end

marshluca

Loading development environment (Rails 2.3.8)
>> Rails.env
=> "development"

>> RAILS_ENV
=> "development"

>> RUBY_VERSION
=> "1.8.7"

marshluca

# ruby developer packages
sudo apt-get install ruby1.8 ri1.8 rdoc1.8 irb1.8
sudo apt-get install libreadline-ruby1.8 libruby1.8 libopenssl-ruby

# hpricot requirements
sudo apt-get install ruby1.8-dev
sudo gem install hpricot


# nokogiri requirements

marshluca

MySQL Log 的配置

MySQL内置4种Log：
Error Log, General Query Log, Binary Log, Slow Query Log

1. Error Log
错误日志， 记录MySQL启动、运行、停止过程中出现的错误信息

2. General Query Log
记录MySQL客户端连接、查询的细节， 调试的时候很有用， 正式运行的时候最好关闭否则会带来大量磁盘IO

marshluca

更换mysql的数据库目录，需要将原来的db数据copy到目标目录，然后做如下更改：

/etc/mysql/my.cnf

# * Basic Settings
#

#
# * IMPORTANT
#   If you make changes to these settings and your system uses apparmor, you may