<?xml version="1.0" encoding="utf-8" ?><rss version="2.0"><channel><title><![CDATA[知其可为而不为]]></title><description><![CDATA[]]></description><link>https://blog.youkuaiyun.com/saga1979</link><language>zh-cn</language><generator>https://blog.youkuaiyun.com/</generator><copyright><![CDATA[Copyright &copy; saga1979]]></copyright><item><title><![CDATA[archlinux内核编译]]></title><link>https://blog.youkuaiyun.com/saga1979/article/details/119911794</link><guid>https://blog.youkuaiyun.com/saga1979/article/details/119911794</guid><author>saga1979</author><pubDate>Fri, 27 Aug 2021 17:28:36 +0800</pubDate><description><![CDATA[Initramfs unpacking failed: invalid magic at start of compressed archive
Kernel panic - not syncing: VFS: Unable to mount root fs on unknown-block(0,0)]]></description><category></category></item><item><title><![CDATA[微信小程序云开发实战：网上商城（五）]]></title><link>https://blog.youkuaiyun.com/saga1979/article/details/119207099</link><guid>https://blog.youkuaiyun.com/saga1979/article/details/119207099</guid><author>saga1979</author><pubDate>Tue, 03 Aug 2021 16:30:39 +0800</pubDate><description><![CDATA[购物车以及商品活动管理]]></description><category></category></item><item><title><![CDATA[微信小程序云开发实战：网上商城（四）]]></title><link>https://blog.youkuaiyun.com/saga1979/article/details/119040026</link><guid>https://blog.youkuaiyun.com/saga1979/article/details/119040026</guid><author>saga1979</author><pubDate>Mon, 26 Jul 2021 11:02:15 +0800</pubDate><description><![CDATA[本节实现客户端商品展示]]></description><category></category></item><item><title><![CDATA[微信小程序云开发实战：网上商城（三）]]></title><link>https://blog.youkuaiyun.com/saga1979/article/details/113173581</link><guid>https://blog.youkuaiyun.com/saga1979/article/details/113173581</guid><author>saga1979</author><pubDate>Wed, 24 Feb 2021 22:50:43 +0800</pubDate><description><![CDATA[实现商品信息的录入与获取。涉及云函数、云数据库、云存储、页面数据交换、浮动组件、运行中组件大小位置控制等知识。]]></description><category></category></item><item><title><![CDATA[微信小程序云开发实战：网上商城（二）]]></title><link>https://blog.youkuaiyun.com/saga1979/article/details/113031214</link><guid>https://blog.youkuaiyun.com/saga1979/article/details/113031214</guid><author>saga1979</author><pubDate>Mon, 25 Jan 2021 18:17:04 +0800</pubDate><description><![CDATA[1. 实现第一个小程序页面
2. 了解云开发的基础知识：云函数、云数据库
3. 引入第三方UI组件库：wei-ui、vant]]></description><category></category></item><item><title><![CDATA[微信小程序云开发实战：网上商城（一）]]></title><link>https://blog.youkuaiyun.com/saga1979/article/details/112994799</link><guid>https://blog.youkuaiyun.com/saga1979/article/details/112994799</guid><author>saga1979</author><pubDate>Sat, 23 Jan 2021 10:01:43 +0800</pubDate><description><![CDATA[微信小程序云开发实战：网上商城（一）关于本系列开发工具与环境
关于本系列
偶然的机会需要给人做一个团购类的微信小程序。我是一名老程序员，但对web类开发从不感兴趣，也从未涉足。从开始的不知如何下手到入门后的想当然，闹了不少笑话，吃了不少苦头，当然，也有不少乐趣。在开发过程中，我就在想，如何与打算或者刚上手微信小程序开发的朋友实时分享心得与经验。这就是我写这个系列的初衷。但本系列不打算成为相关语言、平台、工具的基础性教程，而是着眼于如何利用新平台实现功能。因此，读者至少熟悉一种编程语言以及有过实际开发经历读起]]></description><category></category></item><item><title><![CDATA[树莓派：DIY电视盒子]]></title><link>https://blog.youkuaiyun.com/saga1979/article/details/109570366</link><guid>https://blog.youkuaiyun.com/saga1979/article/details/109570366</guid><author>saga1979</author><pubDate>Mon, 09 Nov 2020 15:17:19 +0800</pubDate><description><![CDATA[利用树莓派和libreelec 制作电视盒子]]></description><category></category></item><item><title><![CDATA[构建Linux系统（一）：构建基本可运行的系统]]></title><link>https://blog.youkuaiyun.com/saga1979/article/details/109350887</link><guid>https://blog.youkuaiyun.com/saga1979/article/details/109350887</guid><author>saga1979</author><pubDate>Tue, 03 Nov 2020 22:39:57 +0800</pubDate><description><![CDATA[相比LFS，借助Buildroot可实现“半自动化”构建Linux系统，减少重复繁琐的搬砖运动。对于没特定需求的嵌入式系统，可实现“傻瓜式”构建。]]></description><category></category></item><item><title><![CDATA[Visual Studio Code ： C/C++开发者实用指南]]></title><link>https://blog.youkuaiyun.com/saga1979/article/details/87938161</link><guid>https://blog.youkuaiyun.com/saga1979/article/details/87938161</guid><author>saga1979</author><pubDate>Fri, 15 Mar 2019 10:55:17 +0800</pubDate><description><![CDATA[如果要使用visual studio code 在windows下面体验mingw、WSL中的gcc，上手并不简单，这款工具如此简约导致了不“简单”]]></description><category></category></item><item><title><![CDATA[Linux系统中的文件监控]]></title><link>https://blog.youkuaiyun.com/saga1979/article/details/88023558</link><guid>https://blog.youkuaiyun.com/saga1979/article/details/88023558</guid><author>saga1979</author><pubDate>Thu, 28 Feb 2019 13:36:02 +0800</pubDate><description><![CDATA[特定文件正在被那些进程操作 
特定进程正在操作那些文件 
实时监控特定文件一段时间
特定进程在执行过程中会操作哪些文件]]></description><category></category></item><item><title><![CDATA[sudo的安全策略：阻止/允许用户执行特定命令]]></title><link>https://blog.youkuaiyun.com/saga1979/article/details/87929605</link><guid>https://blog.youkuaiyun.com/saga1979/article/details/87929605</guid><author>saga1979</author><pubDate>Tue, 26 Feb 2019 10:03:29 +0800</pubDate><description><![CDATA[sudo用户组的用户可以使用sudo以root权限运行命令。某些应用场景可能要求对用户的sudo执行权限细分，比如可以执行部分命令，或者不能执行部分命令。这时可以通过配置sudo的默认安全策略插件sudoers来达到目的。]]></description><category></category></item><item><title><![CDATA[Linux下多串口错乱的一般解决方案]]></title><link>https://blog.youkuaiyun.com/saga1979/article/details/87363003</link><guid>https://blog.youkuaiyun.com/saga1979/article/details/87363003</guid><author>saga1979</author><pubDate>Fri, 15 Feb 2019 15:39:53 +0800</pubDate><description><![CDATA[ 某些还在服役的有多个串口的老旧工控设备，在Linux系统下会出现串口错乱导致无法使用的情况。比较流行的一种解决方式就是给系统中的串口设备重命名。但不同的Linux发行版以及不同的串口扩展芯片，其错乱的情况是有差异的。这里就不再多说了。其实导致串口无法使用的软件方面的原因，是这些系统中的串口设备的地址和中断资源与硬件设备不匹配。可以通过两种方式来解决这个问题：

修改BIOS中的串口设置来匹配系统...]]></description><category></category></item><item><title><![CDATA[小项目中通用的Makefile]]></title><link>https://blog.youkuaiyun.com/saga1979/article/details/87160722</link><guid>https://blog.youkuaiyun.com/saga1979/article/details/87160722</guid><author>saga1979</author><pubDate>Wed, 13 Feb 2019 11:46:20 +0800</pubDate><description><![CDATA[在从事Linux开发这10年间，我很少重头写Makefile，如果是复杂的项目，我会使用IDE，不用考虑Makefile的问题。简单的项目，就拿着刚开始学习Linux编程时的模板修修补补，这些年就过来了，Makefile的语法也忘得一干二净（话说Makefile的语法规则真是乱）

 

在实现Makefile之前，得考虑自己的需求，通常来说，最关键的一点就是：

自动查找工程目录下的相关源文件，...]]></description><category></category></item><item><title><![CDATA[ubuntu下Qt5无法启用摄像头的问题]]></title><link>https://blog.youkuaiyun.com/saga1979/article/details/81384225</link><guid>https://blog.youkuaiyun.com/saga1979/article/details/81384225</guid><author>saga1979</author><pubDate>Fri, 03 Aug 2018 11:33:44 +0800</pubDate><description><![CDATA[最近的项目需要使用设备的摄像头拍照，原来的方案是使用opencv，因为是使用Qt开发，就计划使用Multimedia模块简化项目的库依赖，参考官方示例：

https://doc.qt.io/qt-5/qtmultimedia-multimediawidgets-camera-example.html

开发环境是xubuntu 16.04.5，编译完运行示例程序输出：

defaultServi...]]></description><category></category></item><item><title><![CDATA[POSIX 线程编程指南（完）]]></title><link>https://blog.youkuaiyun.com/saga1979/article/details/53896128</link><guid>https://blog.youkuaiyun.com/saga1979/article/details/53896128</guid><author>saga1979</author><pubDate>Tue, 27 Dec 2016 17:00:57 +0800</pubDate><description><![CDATA[性能,调试,参考]]></description><category></category></item><item><title><![CDATA[POSIX 线程编程指南（四）]]></title><link>https://blog.youkuaiyun.com/saga1979/article/details/53816378</link><guid>https://blog.youkuaiyun.com/saga1979/article/details/53816378</guid><author>saga1979</author><pubDate>Thu, 22 Dec 2016 16:51:46 +0800</pubDate><description><![CDATA[线程同步]]></description><category></category></item><item><title><![CDATA[POSIX 线程编程指南（三）]]></title><link>https://blog.youkuaiyun.com/saga1979/article/details/53815571</link><guid>https://blog.youkuaiyun.com/saga1979/article/details/53815571</guid><author>saga1979</author><pubDate>Thu, 22 Dec 2016 16:04:29 +0800</pubDate><description><![CDATA[线程的分离、合并以及栈设置]]></description><category></category></item><item><title><![CDATA[POSIX 线程编程指南（二）]]></title><link>https://blog.youkuaiyun.com/saga1979/article/details/53813937</link><guid>https://blog.youkuaiyun.com/saga1979/article/details/53813937</guid><author>saga1979</author><pubDate>Thu, 22 Dec 2016 15:21:12 +0800</pubDate><description><![CDATA[线程创建和参数传递]]></description><category></category></item><item><title><![CDATA[POSIX 线程编程指南（一）]]></title><link>https://blog.youkuaiyun.com/saga1979/article/details/53500987</link><guid>https://blog.youkuaiyun.com/saga1979/article/details/53500987</guid><author>saga1979</author><pubDate>Wed, 07 Dec 2016 13:40:02 +0800</pubDate><description><![CDATA[Pthreads Thread 概述]]></description><category></category></item><item><title><![CDATA[VIM 应急10分钟指南]]></title><link>https://blog.youkuaiyun.com/saga1979/article/details/52296530</link><guid>https://blog.youkuaiyun.com/saga1979/article/details/52296530</guid><author>saga1979</author><pubDate>Wed, 24 Aug 2016 08:56:33 +0800</pubDate><description><![CDATA[本文不是VIM手册或者指南，只是试图在你得心应手的IDE不在身边时就如何使用Vim完成简单的编辑任务提供快速参考。]]></description><category></category></item></channel></rss>