<?xml version="1.0" encoding="utf-8" ?><rss version="2.0"><channel><title><![CDATA[chen_yi_ping的专栏]]></title><description><![CDATA[清空你的杯子，方能再行注满！]]></description><link>https://blog.youkuaiyun.com/chen_yi_ping</link><language>zh-cn</language><generator>https://blog.youkuaiyun.com/</generator><copyright><![CDATA[Copyright &copy; chen_yi_ping]]></copyright><item><title><![CDATA[执行 systemctl start firewalld 命令后出现Failed to start firewalld.service: Unit is masked]]></title><link>https://blog.youkuaiyun.com/chen_yi_ping/article/details/76690704</link><guid>https://blog.youkuaiyun.com/chen_yi_ping/article/details/76690704</guid><author>chen_yi_ping</author><pubDate>Fri, 04 Aug 2017 17:26:11 +0800</pubDate><description><![CDATA[firewalld服务被锁定，不能添加对应端口


执行命令，即可实现取消服务的锁定
# systemctl unmask firewalld
下次需要锁定该服务时执行
# systemctl mask firewalld]]></description><category></category></item><item><title><![CDATA[oracle内存查询]]></title><link>https://blog.youkuaiyun.com/chen_yi_ping/article/details/7577374</link><guid>https://blog.youkuaiyun.com/chen_yi_ping/article/details/7577374</guid><author>chen_yi_ping</author><pubDate>Thu, 17 May 2012 17:49:55 +0800</pubDate><description><![CDATA[select current_size from v$buffer_pool;
 
select * from v$sga;
select df.tablespace_name "表空间名",totalspace "总空间M",freespace "剩余空间M",
round((1-freespace/totalspace)*100,2) "使用率%" 
from 
(select t]]></description><category></category></item><item><title><![CDATA[日期格式化]]></title><link>https://blog.youkuaiyun.com/chen_yi_ping/article/details/7049932</link><guid>https://blog.youkuaiyun.com/chen_yi_ping/article/details/7049932</guid><author>chen_yi_ping</author><pubDate>Wed, 07 Dec 2011 15:03:58 +0800</pubDate><description><![CDATA[抽象类DateFormat以及它的子类实体类SimpleDateFormat。这两个类都位于java.text包中，是专门用于日期格式化和解析的类。而这两项工作的核心就是我们为此设定的Pattern，我们可以称之为“日期格式表达式”。
    理论上讲日期格式表达式包含全部26个英文字母的大小写，不过它们中的一些字母只是被预留了，并没有确切的含义。目前有效的字母及它们所代表的含义如下：]]></description><category></category></item><item><title><![CDATA[Oracle基本操作]]></title><link>https://blog.youkuaiyun.com/chen_yi_ping/article/details/7049880</link><guid>https://blog.youkuaiyun.com/chen_yi_ping/article/details/7049880</guid><author>chen_yi_ping</author><pubDate>Wed, 07 Dec 2011 14:54:33 +0800</pubDate><description><![CDATA[--创建表空间
CREATE TABLESPACE CSS 
DATAFILE 'F:\oracle\product\10.2.0\oradata\orcl\cssdata.dbf' SIZE 500M 
UNIFORM SIZE 128k; 
--创建用户
create user cssadmin
identified by "css.2010"
default tablespac]]></description><category></category></item><item><title><![CDATA[Win7 安装oracle10g 无法初始化]]></title><link>https://blog.youkuaiyun.com/chen_yi_ping/article/details/7049783</link><guid>https://blog.youkuaiyun.com/chen_yi_ping/article/details/7049783</guid><author>chen_yi_ping</author><pubDate>Wed, 07 Dec 2011 14:34:48 +0800</pubDate><description><![CDATA[右键Net Configuration Assistant属性，勾选以管理员的身份运行；]]></description><category></category></item><item><title><![CDATA[客服代码生成]]></title><link>https://blog.youkuaiyun.com/chen_yi_ping/article/details/7016098</link><guid>https://blog.youkuaiyun.com/chen_yi_ping/article/details/7016098</guid><author>chen_yi_ping</author><pubDate>Sun, 27 Nov 2011 09:37:40 +0800</pubDate><description><![CDATA[QQ在线代码生成：http://is.qq.com/webpresence/code.shtml
阿里旺旺在线代码生成：http://www.taobao.com/help/wangwang/wangwang_0628_12.php
MSN在线代码生成:http://settings.messenger.live.com/applications/WebSettings.aspx
Skype]]></description><category></category></item><item><title><![CDATA[Jquery取值]]></title><link>https://blog.youkuaiyun.com/chen_yi_ping/article/details/7013897</link><guid>https://blog.youkuaiyun.com/chen_yi_ping/article/details/7013897</guid><author>chen_yi_ping</author><pubDate>Sat, 26 Nov 2011 08:45:45 +0800</pubDate><description><![CDATA[获取一组radio被选中项的值 
var item = $('input[@name=items][@checked]').val(); 
1.3后的为: var item = $("input[name='items']:checked").val(); 
获取select被选中项的文本 
var item = $("select[@name=items] option[@selecte]]></description><category></category></item><item><title><![CDATA[Oracle关键表创建]]></title><link>https://blog.youkuaiyun.com/chen_yi_ping/article/details/7009900</link><guid>https://blog.youkuaiyun.com/chen_yi_ping/article/details/7009900</guid><author>chen_yi_ping</author><pubDate>Thu, 24 Nov 2011 21:55:16 +0800</pubDate><description><![CDATA[--"一对一"关系表的创建
--主表
create table tab_student
(
id number,
name varchar2(32),
address varchar2(32),
primary key(id)
);
--从表
create table tab_IdCard
(
sid number primary key,
num number uniq]]></description><category></category></item><item><title><![CDATA[网页词汇]]></title><link>https://blog.youkuaiyun.com/chen_yi_ping/article/details/7009887</link><guid>https://blog.youkuaiyun.com/chen_yi_ping/article/details/7009887</guid><author>chen_yi_ping</author><pubDate>Thu, 24 Nov 2011 21:53:00 +0800</pubDate><description><![CDATA[网页编程
第一章：
Internet 因特网   Web page 网页  Website 网站
WWW(World Wide Web) 万维网 
HTTP(Hypertext Transfer Protocol) 超文本输协议 URL(Uniform Resource Locator)统一资源定位符 HTML(Hypertext Markup Language) 超文本标记语言 Uplo]]></description><category></category></item><item><title><![CDATA[html常用标签]]></title><link>https://blog.youkuaiyun.com/chen_yi_ping/article/details/7009875</link><guid>https://blog.youkuaiyun.com/chen_yi_ping/article/details/7009875</guid><author>chen_yi_ping</author><pubDate>Thu, 24 Nov 2011 21:50:49 +0800</pubDate><description><![CDATA[图片：
alt:如果图片没有下载，则表示在图片上的文字，如果图片下载完则表示在图片旁边的文字。
字体：
换行：
段落：文字  
空段：
无序列表:
disc 默认值，表示实心圆点,circle 空心圆环,square空心正方形

 每一项
 .......

有序列表：
（1,a,A,i,I  序列类型取5个值）

 每一项
 .......

超连接到新的网页]]></description><category></category></item><item><title><![CDATA[jquery.cookie.js操作cookie实现“记住密码”]]></title><link>https://blog.youkuaiyun.com/chen_yi_ping/article/details/6987471</link><guid>https://blog.youkuaiyun.com/chen_yi_ping/article/details/6987471</guid><author>chen_yi_ping</author><pubDate>Fri, 18 Nov 2011 10:40:07 +0800</pubDate><description><![CDATA[String path = request.getContextPath();
%>
JS
/script/jquery/lib/jquery.cookie.js">


//初始化页面时验证是否记住了密码 
$(document).ready(function() { 
 if ($.cookie("isMemPwd") == "true") { 
  $("#isMemPwd]]></description><category></category></item></channel></rss>