保存一下干货

 

8月14日

新鲜出炉的干货大集锦,这次分享给大家的干货,都是根据这几天大家的反馈进行整理,希望可以为大家的技术提升带来一定的帮助~

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ROS入门教程(一):https://blog.youkuaiyun.com/q_z_r_s/article/details/83721261

ROS学习之路的整理:https://blog.youkuaiyun.com/zhanshen112/article/details/82792467

ROS源码分析:https://blog.youkuaiyun.com/sukha/article/details/52454735

阿里云RPA(机器人流程自动化)干货系列之七:编写第一个RPA应用(可视化模式):https://yq.aliyun.com/articles/696414

【RPA】机器人流程自动化(RPA)概念、原理与实践:https://blog.youkuaiyun.com/np4rHI455vg29y2/article/details/80035832

蓝牙通信,完整的通信流程!:https://blog.youkuaiyun.com/weixin_39079048/article/details/78923669

主流蓝牙芯片对比 Dialog- ST -TI - Nordic:https://blog.youkuaiyun.com/jiangchao3392/article/details/88692195

数据挖掘-实用案例分析 【张良均】:https://download.youkuaiyun.com/download/cultwent/10276826

数据挖掘应用20个案例分析:https://download.youkuaiyun.com/download/cultwent/10276811

移动端(三)—— rem适配和flex适配:https://blog.youkuaiyun.com/as1172010632/article/details/78762421

Spring面试题整理:https://blog.youkuaiyun.com/hrbeuwhw/article/details/79476988

对四旋翼飞行器的分析:https://blog.youkuaiyun.com/u013737849/article/details/79826305

四旋翼 设计及原理:https://blog.youkuaiyun.com/wawawudi/article/details/70170912

网络基础知识分享:https://edu.youkuaiyun.com/course/detail/10086

100 个网络基础知识普及(上):https://blog.youkuaiyun.com/click_idc/article/details/80415960

100 个网络基础知识普及(下):https://blog.youkuaiyun.com/click_idc/article/details/80416079

Oracle概念与基本常识:https://blog.youkuaiyun.com/qq_38986609/article/details/82501643

最全面详细讲解Oracle入门(新手必看):https://blog.youkuaiyun.com/qianfeng_php/article/details/78903702

Android Gradle 必备实用技巧:https://gitchat.youkuaiyun.com/activity/589fc870b38f84e02fa64883?utm_source=soAndroid

面试技术点:https://blog.youkuaiyun.com/duoduo_11011/article/details/81143325

 

 

8月8日

 

机器学习/数据处理领域结果的评估度量:https://blog.youkuaiyun.com/lyxleft/article/details/84579319

整理的最全 python常见面试题(基本必考):https://blog.youkuaiyun.com/t8116189520/article/details/80165589

Jumpserver入门介绍:https://blog.youkuaiyun.com/imtech/article/details/89332410

C++学习1:C++入门基础学习:https://blog.youkuaiyun.com/lin453701006/article/details/52948000

中间件学习——基础知识一步曲:https://blog.youkuaiyun.com/paullinjie/article/details/82496712

[嵌入式]嵌入式系统概述:https://blog.youkuaiyun.com/wzhCAlex/article/details/53697653

车载以太网权威指南:https://download.youkuaiyun.com/download/sun072723/10353634

互联网电商技术架构之一:https://blog.youkuaiyun.com/summer85/article/details/93192573

架构学习干货与方向标:https://download.youkuaiyun.com/download/qq_28305299/10769134

密码管理平台ratticdb的部署,在centos7上的部署:https://www.cnblogs.com/echo-valley/p/8126393.html

产品经理的高阶能力:https://blog.youkuaiyun.com/pmcaff2008/article/details/81091943

2B产品的关键点是如何进行流程创新:https://www.jianshu.com/p/c0a0383f3977

JAVA web框架开发通过第三方支付公司与银行对接:https://download.youkuaiyun.com/download/u010260104/5431715

java基础知识总结 超详细:https://blog.youkuaiyun.com/try_and_do/article/details/79784520

人工智能的全面科普:https://blog.youkuaiyun.com/wangyiyungw/article/details/80092102

Redis学习笔记之十:Redis用作消息队列:https://blog.youkuaiyun.com/qq_34212276/article/details/78455004

必须知道的十种基础算法:https://blog.youkuaiyun.com/dataiyangu/article/details/79774145

在Fluent中实现自动操作:https://blog.youkuaiyun.com/yangguangdblu/article/details/78753794

零基础成为黑客:https://blog.youkuaiyun.com/sinat_34820292/article/details/98028768

3D打印初始课程(一):https://download.youkuaiyun.com/download/sinat_23187055/10799810

网络安全学习和CTF必不可少的一些网站:https://blog.youkuaiyun.com/ida0918/article/details/52730662

MQTT 简单介绍与实现:https://blog.youkuaiyun.com/u013151053/article/details/81366677

Java 最常见的 200+ 面试题:面试必备:https://blog.youkuaiyun.com/sufu1065/article/details/88051083

QT的基本知识:https://blog.youkuaiyun.com/zys15195875600/article/details/81749177

 

 

7月31日

 

Android使用JNI生成.so文件并调用:https://blog.youkuaiyun.com/dream_caoyun/article/details/79495103

利用百度AI开放平台进行本地图片通用文字识别:https://blog.youkuaiyun.com/qq_40197828/article/details/82812978

这可能是最简单易懂的机器学习入门(小白必读):https://blog.youkuaiyun.com/qq_28168421/article/details/81351321

【机器学习】多分类学习的拆分策略:https://blog.youkuaiyun.com/u012679707/article/details/80527994

机器学习概括:什么是机器学习,机器学习分类和基本用途:https://blog.youkuaiyun.com/u011626960/article/details/79349659

机器学习:3个知乎大神回答、5个新人常见问题和3个学习规划:https://blog.youkuaiyun.com/j2IaYU7Y/article/details/79825304

机器视觉专栏:https://blog.youkuaiyun.com/oHanTanYanYing/column/info/15631

机器视觉原理解析:https://blog.youkuaiyun.com/zc21463071/article/details/81231058

机器视觉基础知识汇总:https://blog.youkuaiyun.com/leoaran/article/details/80914270

那些精贵的「机器视觉」学习资料总结:https://blog.youkuaiyun.com/Yong_Qi2015/article/details/80154773

表情识别LDTP算法:https://blog.youkuaiyun.com/z349177893/article/details/86600254

机器学习之——简单表情识别:https://blog.youkuaiyun.com/yxdd1gbk/article/details/79788967

50个“杀手级”AI项目 !(附链接):https://blog.youkuaiyun.com/tmb8z9vdm66wh68vx1/article/details/79372988

一个完整机器学习项目流程总结:https://blog.youkuaiyun.com/huangfei711/article/details/79850989

Scratch编程入门教案:https://blog.youkuaiyun.com/weixin_40897235/article/details/89206058

基于SLAM的机器人的自主定位导航:https://blog.youkuaiyun.com/weixin_37251044/article/details/78515909

python之常用算法:https://blog.youkuaiyun.com/u012114090/article/details/81516189

open cv+C++错误及经验总结:https://blog.youkuaiyun.com/ningyaliuhebei/article/details/22385833

本地费控与远程费控:https://blog.youkuaiyun.com/wuhenyouyuyouyu/article/details/77979112

20个顶级大数据软件应用程序:https://blog.youkuaiyun.com/qq_16633405/article/details/79718325

软件应用资源:https://download.youkuaiyun.com/download/mini_hs/10444585

推荐给运维人员的10个开源漏洞检测工具!:https://blog.youkuaiyun.com/Z1XpIYDj9sn/article/details/88548637

无线网络渗透测试(一)基础知识:https://blog.youkuaiyun.com/windy_hui/article/details/83016100

网络渗透资料大全单——工具篇(上):https://blog.youkuaiyun.com/gardentop/article/details/80140117

Net基础全套视频教程:https://edu.youkuaiyun.com/course/detail/858

Duilib—基础框架:https://blog.youkuaiyun.com/linjingtu/article/details/89843183

网络安全(知识点总结分类):https://blog.youkuaiyun.com/shakeyin1998/article/details/85544620

网络安全学习指南:https://blog.youkuaiyun.com/qq_36402161/article/details/84035618

硬件电路设计入门奉献系列(一):https://blog.youkuaiyun.com/xiaohe511/article/details/59520514

蓝牙音频音质探讨:https://blog.youkuaiyun.com/dear5240/article/details/80889083

linux系统基本知识整理:https://blog.youkuaiyun.com/u011285477/article/details/90600501

python实现的NoSql数据库系列-高级数据库操作:https://blog.youkuaiyun.com/qq_25055269/article/details/82731053

最纯粹的直播技术实战01-FFmpeg的编译与运行:https://blog.youkuaiyun.com/u011485531/article/details/55804380

人脸识别的流程:https://blog.youkuaiyun.com/briant_ccj/article/details/86167261

可靠数据传输协议-Rdt协议:https://blog.youkuaiyun.com/hernofogot/article/details/88382944

99%的人都会忽略的Python易错点总结:https://blog.youkuaiyun.com/varyshare/article/details/90202321

数据融合技术原理与方法:https://blog.youkuaiyun.com/dujiahei/article/details/86670644

平衡小车设计_1_系统组成:https://blog.youkuaiyun.com/floatinglong/article/details/92200665

avizo使用:https://blog.youkuaiyun.com/u012526003/article/details/78668196

三种二次开发的方式:https://blog.youkuaiyun.com/u013213317/article/details/80835028

机器学习实例:文本挖掘和情感分析的基础示例:http://www.atyun.com/26241.html

PowerBI最全可视化视图打包和DEMO汇总:https://blog.youkuaiyun.com/capsicum29/article/details/76427138

DIY自动分类“错题集”:一种基于视觉词汇的文本分类法:https://blog.youkuaiyun.com/weixin_33835690/article/details/90001431

Redis和消息队列使用实战:https://blog.youkuaiyun.com/uyninger/article/details/77489806

微信小程序开发者工具详解:https://blog.youkuaiyun.com/hani_wen/article/details/82733694

JASS速查手册:https://download.youkuaiyun.com/download/u010027950/10150150

jass api详解:https://download.youkuaiyun.com/download/guduhupo/3070241

Linux入门课程:https://edu.youkuaiyun.com/course/detail/5929

linux使用入门教程:https://blog.youkuaiyun.com/xiaomu_347/article/details/80627647

swing入门教程(一) swing简介:https://blog.youkuaiyun.com/alli0968/article/details/50637118

 

 

 

7月24日

 

【Java干货】

Spring底层源码分析:https://edu.youkuaiyun.com/course/detail/25076

Spring源码解析 - springMVC核心代码(一):https://blog.youkuaiyun.com/gududedabai/article/details/83352106

spring源码深度解析,高清版:https://download.youkuaiyun.com/download/u010426961/10174374

SpringCloud视频教程:https://edu.youkuaiyun.com/course/detail/7980

Spring Cloud 从入门到精通:https://blog.youkuaiyun.com/valada/article/details/80892573

史上最简单的 SpringCloud 教程:https://blog.youkuaiyun.com/forezp/article/details/81040925

微服务Springboot实战大揭秘:https://edu.youkuaiyun.com/course/detail/9590

spring boot 搭建web项目完整流程:https://blog.youkuaiyun.com/fyhailin/article/details/79413864

SpringBoot入门最详细教程:https://blog.youkuaiyun.com/liutong123987/article/details/79385513

Android Studio 开发详解:https://edu.youkuaiyun.com/course/detail/2996

老罗的Android之旅:https://blog.youkuaiyun.com/Luoshengyang/

datax oracle2oracle oracle导入oracle:https://blog.youkuaiyun.com/u014646662/article/details/82777966

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【综合干货】

python实现微信机器人:AI智能回复:https://blog.youkuaiyun.com/harleylau/article/details/80300274

人工神经网络(一)概述:https://blog.youkuaiyun.com/qq_24708791/article/details/78370881

人脸识别干货集锦:https://blog.youkuaiyun.com/u014568921/article/details/52816578

人脸识别--在线考试系统商业项目视频课程:https://edu.youkuaiyun.com/course/detail/10321

深度学习-玩转GPU:https://blog.youkuaiyun.com/gaoyanjie55/article/details/79731821

深度学习入门:https://download.youkuaiyun.com/download/wupitt/10812503

深度学习实例:https://download.youkuaiyun.com/download/qq_35858860/10775017

数据挖掘十大经典算法(包括各自优缺点 / 适用数据场景):https://blog.youkuaiyun.com/qq_36523839/article/details/82383597

数据挖掘:https://blog.youkuaiyun.com/QiwzDeBLOG/article/details/81591399

linux嵌入式开发+驱动开发视频精讲:https://edu.youkuaiyun.com/course/detail/2284

嵌入式开发实例:https://download.youkuaiyun.com/download/good_night_9527/10362315

介绍几款嵌入式开发工具,或许能用上!:https://blog.youkuaiyun.com/DP29syM41zyGndVF/article/details/79864645

实战数据平台:https://edu.youkuaiyun.com/course/detail/25431

从图像处理到语音识别,25款数据科学家必知的深度学习开放数据集:https://blog.youkuaiyun.com/haoji007/article/details/81020256

几个好用的CAD lisp:https://download.youkuaiyun.com/download/qq_27761207/8638993

VB.NET 教程_01_基础语法:https://blog.youkuaiyun.com/pre_eminent/article/details/81490985

2019Web前端从入门到精通(HTML+CSS全套):https://edu.youkuaiyun.com/course/detail/25167

三维重建代码合集.zip:https://download.youkuaiyun.com/download/qq_40520116/11214101

C++:https://download.youkuaiyun.com/download/weixin_38669628/10987513

C++习题汇总答案 答案:https://download.youkuaiyun.com/download/xiaogaigaigai/3346641?utm_source=bbsseo

C++编程视频教程:https://edu.youkuaiyun.com/course/detail/6200

C++入门经典.:https://download.youkuaiyun.com/download/zjianli1234/10013484

C++入门教程完整版:https://download.youkuaiyun.com/download/qq_24648413/10215817

某集团公司局域网安全规划:https://download.youkuaiyun.com/download/lf16886/3562577

FPGA简介:https://download.youkuaiyun.com/download/Augusdi/1867329

深入浅出FPGA-4:https://download.youkuaiyun.com/download/qq_43677400/10780387

自动化运维:https://download.youkuaiyun.com/download/weixin_42456452/10478030

OpenCV:https://download.youkuaiyun.com/download/wanghangwanghang/10130295

知识图谱关键技术与应用案例:https://edu.youkuaiyun.com/course/detail/9108

50张技术知识图谱更新版:https://download.youkuaiyun.com/download/baiyuzhong2012/9672316

一些在线编程练习或调试网站:https://blog.youkuaiyun.com/JIEJINQUANIL/article/details/52281048

前后端数据交互方法和原理:https://blog.youkuaiyun.com/gefangen/article/details/83472898

### PostgreSQL 面试常见问题及答案 #### 1. 如何在PostgreSQL中使用PostGIS扩展来管理地理空间数据? 利用PostGIS扩展可以在PostgreSQL中有效地管理和操作地理空间数据。这涉及创建带有几何字段的表格,向这些字段插入坐标数据,并执行基于位置的空间查询[^1]。 ```sql -- 安装 PostGIS 扩展 CREATE EXTENSION postgis; -- 创建带地理空间列的表 CREATE TABLE locations ( id SERIAL PRIMARY KEY, name VARCHAR(255), geom GEOMETRY(Point, 4326) ); -- 插入地理位置记录 INSERT INTO locations (name, geom) VALUES ('Point A', ST_SetSRID(ST_MakePoint(-71.060316, 48.432044), 4326)); -- 进行距离查询 SELECT * FROM locations WHERE ST_DWithin(geom::geography, 'SRID=4326;POINT(-71.060316 48.432044)'::geometry::geography, 100); ``` #### 2. 解释PostgreSQL中的全文搜索支持以及`tsvector`和`tsquery`的作用 PostgreSQL提供了强大的内置全文搜索引擎。为了实现高效的文本检索,可以将文档转换成`tsvector`格式存储,而搜索条件则表示为`tsquery`对象。两者之间的匹配运算符(`@@`)用于判断是否存在满足条件的内容。 ```sql -- 将字符串解析为 tsvector 和 tsquery 类型 SELECT to_tsvector('english', 'The quick brown fox jumps over the lazy dog'), plainto_tsquery('english', 'quick & fox'); -- 对文章内容建立 GIN 索引来提高查找效率 CREATE INDEX idx_fts ON articles USING gin(to_tsvector('english', content)); ``` #### 3. 提升PostgreSQL查询性能的关键措施有哪些? 提升PostgreSQL查询速度可以从多个方面入手: - 构建合理的索引结构,特别是针对频繁访问的数据列; - 使用`EXPLAIN ANALYZE`命令分析SQL语句的实际运行情况并据此调整优化方案; - 控制返回的结果数量,避免不必要的资源消耗; - 当涉及到多张表关联时需谨慎设计逻辑关系,防止因不当嵌套造成额外负担[^3]。 #### 4. PostgreSQL具备哪些类型的灾难恢复机制? 对于确保系统的高可用性和数据安全性而言,PostgreSQL支持如下几种主要的灾备手段: - **备份与还原**:借助于官方提供的工具如`pg_dump`或`pg_basebackup`定期保存整个实例的状态副本;一旦出现问题即可迅速回滚至最近一次完整的状态。 - **WAL日志存档**:开启此特性后每次事务提交都会同步写入预写式日志文件(WAL),即使遇到意外中断也能依据这些增量更新重新构建最新版本的信息库。 - **流复制/热备部署**:设置一对或多对主从节点间实时同步变更事件,在线程发生故障转移期间无缝接管对外服务请求[^4]。 #### 5. 数据库性能瓶颈可能出现在什么地方?怎样才能做到快速迁移大量数据而不影响现有业务流程? 常见的性能障碍往往集中在磁盘I/O读取延迟过高、内存不足导致缓存命中率下降等方面。至于大规模数据搬迁工作,则建议采用批量加载方式分批次导入目标端,同时保持源站正常运作直至全部完成迁移任务后再做最终切换安排。
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