<?xml version="1.0" encoding="utf-8" ?><rss version="2.0"><channel><title><![CDATA[jiangnankid的专栏]]></title><description><![CDATA[]]></description><link>https://blog.youkuaiyun.com/jiangnankid</link><language>zh-cn</language><generator>https://blog.youkuaiyun.com/</generator><copyright><![CDATA[Copyright &copy; jiangnankid]]></copyright><item><title><![CDATA[数位板和sai2安装使用]]></title><link>https://blog.youkuaiyun.com/jiangnankid/article/details/113730749</link><guid>https://blog.youkuaiyun.com/jiangnankid/article/details/113730749</guid><author>jiangnankid</author><pubDate>Sun, 07 Feb 2021 13:42:07 +0800</pubDate><description><![CDATA[数位板安装

数位板用的是电脑的绝对坐标

1，连接usb，下载官方驱动，重启。

2，这样就可以控制了。



sai2的安装

解压缩


]]></description><category></category></item><item><title><![CDATA[C++内存检查工具汇总]]></title><link>https://blog.youkuaiyun.com/jiangnankid/article/details/112740318</link><guid>https://blog.youkuaiyun.com/jiangnankid/article/details/112740318</guid><author>jiangnankid</author><pubDate>Sun, 17 Jan 2021 13:35:47 +0800</pubDate><description><![CDATA[目录

c++编译器安装

valgrind下载[2]

valgrind安装

valgrind使用

c++编译器安装

centos7下安装C/C++的编译器gcc和g++，运行了如下两条命令[1]：

　　1 yum install gcc

　　2 yum install gcc-c++ libstdc++-devel （正确）

     yum install g++但安装g++时提示： Cannot find a package matching g++



valgrind...]]></description><category></category></item><item><title><![CDATA[webrtc SendVideo过程]]></title><link>https://blog.youkuaiyun.com/jiangnankid/article/details/112105975</link><guid>https://blog.youkuaiyun.com/jiangnankid/article/details/112105975</guid><author>jiangnankid</author><pubDate>Sat, 02 Jan 2021 17:57:45 +0800</pubDate><description><![CDATA[0, 发包流程


bool RTPSenderVideo::SendEncodedImage(
    int payload_type,
    absl::optional&lt;VideoCodecType&gt; codec_type,
    uint32_t rtp_timestamp,
    const EncodedImage&amp; encoded_image,
    RTPVideoHeader video_header,
    absl::optional&lt;int64_]]></description><category></category></item><item><title><![CDATA[2020-12-14]]></title><link>https://blog.youkuaiyun.com/jiangnankid/article/details/111183044</link><guid>https://blog.youkuaiyun.com/jiangnankid/article/details/111183044</guid><author>jiangnankid</author><pubDate>Mon, 14 Dec 2020 19:12:52 +0800</pubDate><description><![CDATA[》这两天学习了下伽罗华运算，这个可以用在fec领域。
只是看懂了一点点
1，index和多项式之间的转化
2，乘法查表，加减法异或
3，查表性能开销应该不大。异或可以通过汇编优化。如果用了优化选项o3这些汇编带来的优化就很小了。
》学习了下用make和cmake对c++和asm汇编的混合编译。
1，make
通过makefile的方式编译。
编写makefile文件
然后输入make生成可执行文件。
makefile文件格式：
要生成的可执行文件名字（比如all）：前置条件（比如xxx.o yyy.o）
x]]></description><category></category></item><item><title><![CDATA[python 请求url-api总结[写爬虫基础]]]></title><link>https://blog.youkuaiyun.com/jiangnankid/article/details/107117609</link><guid>https://blog.youkuaiyun.com/jiangnankid/article/details/107117609</guid><author>jiangnankid</author><pubDate>Fri, 03 Jul 2020 23:42:12 +0800</pubDate><description><![CDATA[requests库：

get请求：


second_html = requests.get(sel_url, headers=headers)
Soup2 = BeautifulSoup(second_html.text,"html.parser")

post json请求：


res = requests.post(url,data=json.dumps(values),headers={'Content-Type':'application/json'})
print(res.json())

]]></description><category></category></item><item><title><![CDATA[在VirtualBox中安装CentOS 7及安装增强]]></title><link>https://blog.youkuaiyun.com/jiangnankid/article/details/77278851</link><guid>https://blog.youkuaiyun.com/jiangnankid/article/details/77278851</guid><author>jiangnankid</author><pubDate>Wed, 16 Aug 2017 22:02:57 +0800</pubDate><description><![CDATA[http://www.linuxidc.com/Linux/2016-09/135593.htm

当初接触Linux的时候，因为条件限制，只能在VirtualBox虚拟机中安装Linux系统使用，由于是小白，爬了好多坑。于是决定写一篇关于在虚拟机中安装linux系统的文章。一是为了巩固自己的知识，二是希望能够对新手朋友提供一些帮助。我使用的是VirtualBox虚拟机，安装CentOS-7操]]></description><category></category></item><item><title><![CDATA[【hadoop集群搭建和代码调试】总结17/2/18]]></title><link>https://blog.youkuaiyun.com/jiangnankid/article/details/55667582</link><guid>https://blog.youkuaiyun.com/jiangnankid/article/details/55667582</guid><author>jiangnankid</author><pubDate>Sat, 18 Feb 2017 15:29:25 +0800</pubDate><description><![CDATA[按照配置、执行流程
~~~~~~~~~~~~~~~~~~~~~~~~步骤1，在hadoop集群设定监听端口

【调试】监听hadoop集群9999端口，在eclipse中远程调试java代码
【具体做法】

export YARN_NODEMANAGER_OPTS="-Xdebug -Xrunjdwp:transport=dt_socket,address=8788,server=y,]]></description><category></category></item><item><title><![CDATA[hadoop2.7.3编译和安装]]></title><link>https://blog.youkuaiyun.com/jiangnankid/article/details/54233079</link><guid>https://blog.youkuaiyun.com/jiangnankid/article/details/54233079</guid><author>jiangnankid</author><pubDate>Sun, 08 Jan 2017 12:16:20 +0800</pubDate><description><![CDATA[环境：Ubuntu14.4
jdk1.8
maven3.3.9
Hadoop2.7.3
protocbuf 2.5.0




--------hadoop编译------


1、安装jdk 配置环境变量


1.1 解压文件，修改文件名



$ sudo mkdir /usr/lib/jvm
$ sudo tar zxvf /home/linlin/so]]></description><category></category></item><item><title><![CDATA[hadoop2.6.1源码编译]]></title><link>https://blog.youkuaiyun.com/jiangnankid/article/details/53932113</link><guid>https://blog.youkuaiyun.com/jiangnankid/article/details/53932113</guid><author>jiangnankid</author><pubDate>Thu, 29 Dec 2016 21:21:41 +0800</pubDate><description><![CDATA[http://blog.youkuaiyun.com/linlinv3/article/details/49358217


编译步骤：





首先需要在虚拟机进行下面软件的安装



1、安装jdk 配置环境变量



安装过程如下： http://blog.youkuaiyun.com/linlinv3/article/details/45060705 
  



]]></description><category></category></item><item><title><![CDATA[在virtualbox中装好Ubuntu后，发现硬盘空间太小，怎样才能增加硬盘容量？那就是再建一个硬盘]]></title><link>https://blog.youkuaiyun.com/jiangnankid/article/details/53932005</link><guid>https://blog.youkuaiyun.com/jiangnankid/article/details/53932005</guid><author>jiangnankid</author><pubDate>Thu, 29 Dec 2016 20:35:57 +0800</pubDate><description><![CDATA[http://www.aiuxian.com/article/p-3277673.html


在virtualbox中装好Ubuntu后，发现硬盘空间太小，怎样才能增加硬盘容量？那就是再建一个硬盘： 

1. 添加新硬盘

     设置 -> Storage -> SATA控制器->右击，选择&ldquo;添加虚拟硬盘&rdquo;

     然后，根据需求创建合适的硬盘]]></description><category></category></item><item><title><![CDATA[【转】MySQL每晚定时弹出一个taskeng.exe]]></title><link>https://blog.youkuaiyun.com/jiangnankid/article/details/51392438</link><guid>https://blog.youkuaiyun.com/jiangnankid/article/details/51392438</guid><author>jiangnankid</author><pubDate>Fri, 13 May 2016 09:15:55 +0800</pubDate><description><![CDATA[http://bbs.youkuaiyun.com/topics/390983296


程序运行时，MySQL弹出一个taskeng.exe. 内容如下:
=====================Start Initialization====================
MySQL Installer is running in Community mode.

Initializin]]></description><category></category></item><item><title><![CDATA[读取蚂蜂窝某分类下问答浏览数]]></title><link>https://blog.youkuaiyun.com/jiangnankid/article/details/51113947</link><guid>https://blog.youkuaiyun.com/jiangnankid/article/details/51113947</guid><author>jiangnankid</author><pubDate>Sun, 10 Apr 2016 17:34:04 +0800</pubDate><description><![CDATA[http://www.upqq.net/java/189.html


1，向String surl = "http://www.mafengwo.cn/qa/ajax_pager.php?type=0&mddid=10184&tids=0&action=question_index&start="+start;发送连接请求。

2，获取到的输出流（如下，里面中文机标点符号之类会用/u表]]></description><category></category></item><item><title><![CDATA[Unable to load configuration. - bean - jar:file:/E:/tomcat/lib/struts...]]></title><link>https://blog.youkuaiyun.com/jiangnankid/article/details/46594931</link><guid>https://blog.youkuaiyun.com/jiangnankid/article/details/46594931</guid><author>jiangnankid</author><pubDate>Mon, 22 Jun 2015 18:44:09 +0800</pubDate><description><![CDATA[配置struts2环境，导入书上写的7个包后，出现上面的问题。后面查资料有说要添10个jar包，有说手动添的-->发现没有关系
后来觉得应该是因为，我之前在tomcat的lib文件夹中也加入了这些jar包，然后在部署应用的时候，又加了一遍，重了的原因？
重装了一遍tomcat问题就解决了。


这之间，在配置server时，未选择jre的安装位置，导致出现了些问题，解决如下：
http]]></description><category></category></item><item><title><![CDATA[notepad++自动补全括号]]></title><link>https://blog.youkuaiyun.com/jiangnankid/article/details/46475591</link><guid>https://blog.youkuaiyun.com/jiangnankid/article/details/46475591</guid><author>jiangnankid</author><pubDate>Fri, 12 Jun 2015 21:15:09 +0800</pubDate><description><![CDATA[如图，设置-首选项-自动完成-右下区域打勾]]></description><category></category></item><item><title><![CDATA[如何看tomcat控制台信息]]></title><link>https://blog.youkuaiyun.com/jiangnankid/article/details/46475551</link><guid>https://blog.youkuaiyun.com/jiangnankid/article/details/46475551</guid><author>jiangnankid</author><pubDate>Fri, 12 Jun 2015 21:07:45 +0800</pubDate><description><![CDATA[http://bbs.youkuaiyun.com/topics/270019362

因为没有用eclipse，而是直接通过启动startup.bat来启动部署在tomcat上的web应用，所以之前一直没搞懂，tomcat的控制台在哪。
还通过http://localhost:8080/manager/html进入到web应用管理页，也没找到可以看System.out输出信息的地方==然后发现应该是如]]></description><category></category></item><item><title><![CDATA[ant安装及配置编译；配置tomcat数据源和sql安装及配置]]></title><link>https://blog.youkuaiyun.com/jiangnankid/article/details/46432329</link><guid>https://blog.youkuaiyun.com/jiangnankid/article/details/46432329</guid><author>jiangnankid</author><pubDate>Tue, 09 Jun 2015 22:01:26 +0800</pubDate><description><![CDATA[http://blog.youkuaiyun.com/vebasan/article/details/7619911

http://jingyan.baidu.com/article/f3ad7d0ffc061a09c3345bf0.html

《轻量级javaEE...》
写一个简版的配置，方便看。
ant下载
安装：解压缩
环境变量配置：JAVA_HOME(tomcat已配）；ANT_H]]></description><category></category></item><item><title><![CDATA[【转】Android Framework Parser:failed to collect preference classes PermGen space]]></title><link>https://blog.youkuaiyun.com/jiangnankid/article/details/46418841</link><guid>https://blog.youkuaiyun.com/jiangnankid/article/details/46418841</guid><author>jiangnankid</author><pubDate>Mon, 08 Jun 2015 22:14:24 +0800</pubDate><description><![CDATA[http://bbs.youkuaiyun.com/topics/390756937?page=1


eclipse目录下面的eclipse.ini
最下面那几行

-vmargs
-Xms256m
-Xmx800m

把内存改大点儿]]></description><category></category></item><item><title><![CDATA[【转】R cannot be resolved to a variable 的解决办法]]></title><link>https://blog.youkuaiyun.com/jiangnankid/article/details/46418825</link><guid>https://blog.youkuaiyun.com/jiangnankid/article/details/46418825</guid><author>jiangnankid</author><pubDate>Mon, 08 Jun 2015 22:12:54 +0800</pubDate><description><![CDATA[在MyEclipse下新建项目test6，一步步按部就班创建完成，结果竟然是不能运行。



报了两个错误：

 一个在MainActivity.java中，R cannot be resolved to a variable另一个在AndroidManifest.xml中，The markup in the document following the root element mu]]></description><category></category></item><item><title><![CDATA[【转】如何登陆Tomcat的控制台（Web管理界面）]]></title><link>https://blog.youkuaiyun.com/jiangnankid/article/details/46418531</link><guid>https://blog.youkuaiyun.com/jiangnankid/article/details/46418531</guid><author>jiangnankid</author><pubDate>Mon, 08 Jun 2015 21:56:49 +0800</pubDate><description><![CDATA[http://blog.sina.com.cn/s/blog_61e4a9dd0101j3l9.html
当我们成功安装启动Tomcat服务后，在浏览器输入http://localhost:8080（8080是Tomcat的默认端口，可自行修改）回车，可看到如下界面


右上角可以看到三个控制台：Server Status、Manager App、Host Manager

Serve]]></description><category></category></item><item><title><![CDATA[MySQL执行外部sql脚本文件的命令]]></title><link>https://blog.youkuaiyun.com/jiangnankid/article/details/46418483</link><guid>https://blog.youkuaiyun.com/jiangnankid/article/details/46418483</guid><author>jiangnankid</author><pubDate>Mon, 08 Jun 2015 21:52:11 +0800</pubDate><description><![CDATA[http://blog.youkuaiyun.com/vebasan/article/details/7619911


sql脚本是包含一到多个sql命令的sql语句，我们可以将这些sql脚本放在一个文本文件中（我们称之为“sql脚本文件”），然后通过相关的命令执行这个sql脚本文件。基本步骤如下：
1、创建包含sql命令的sql脚本文件
文件中包含一些列的sql语句，每条语句最后以;结尾，文件内]]></description><category></category></item></channel></rss>