Ruby下解决oci8安装错误的问题
Prepare
1. Download 'OCI 1.x.x.rb' (it's VERY important - execution MUST be *.rb)
2. Download 'oci8lib.so'
Install
1. Copy 'OCI8.rb' to .../ruby/lib/ruby/site_ruby/1.8/DBD/OCI8
2. Copy 'oci8.rb' to .../ruby/lib/ruby/site_ruby/1.8
3. Copy 'oci8lib.so' to .../ruby/lib/ruby/site_ruby/1.8/i386-msvcrt
相关文档:
正常情况下,ruby如果发现文件夹中有system,readonly,hide类型的文件,则是不能直接删除
他们的。如何解决呢?
以其人之道还治其人之身!
def dryf(fpath) #destroy file
x = Iconv.iconv('utf-8','gbk',fpath).to_s
%x{attrib -R -S -H \"#{Iconv.iconv('gbk','utf-8',x).to_s}\"}
f = File.new(f ......
开发环境:
OS:Windows XP
Ruby:Ruby1.9.1
Rails:Rails2.3.5
will_paginate:will_paginate2.3.11
(在命令行中运行 gem install mislav-will_paginate --source http://gems.github.com )
IDE:Rubymine2.0.1
DB:mysql5.0.9
本例在上一个例子(Ruby实践—简单数据库操作)的基础上实现分页,利用的是will_p ......
使用 will_paginate 进行分页和简单查询
在命令行下使用 gem install will_paginate 命令,出现下面结果安装成功
打开 books_controller.rb (你自己的控制器)
注释掉查找全部的方法,使用下面的方法,已经集成根据title进行查询
Ruby代码
#@books = Book.all
@books = Book.pagina ......
require 'curses'
module Curses
def self.program
main_scr=init_screen
noecho
cbreak
curs_set(0)
main_scr.keypad=true
yield main_scr
end
end
Curses.program do |scr|
max_x=scr.maxx
max_y=scr.maxy
100.times do
scr.setpos(rand(max_y),rand(max_x))
......
先放上一个实例的bat文件,要求管理员特权运行:
@echo off
::CMD里显示彩色文字
chcp 437>nul&&graftabl 936>nul
if not exist CONFIG.NT copy %WinDir%\System32\CONFIG.NT CONFIG.NT
@cls
echo DEVICE=%WinDir%\System32\ANSI.SYS /x >%WinDir%\System32\CONFIG.NT
@echo.
command /cecho
com ......