几个官网

菜鸟教程 - 学的不仅是技术，更是梦想！  https://www.runoob.com/

NetBeans 7.0正式版于2011-4-20日发布。NetBeans 7.0带来了众多改进，如增加或改进了JDK7的支持、GlassFish3.1的支持、Maven3的支持等。

目前最新版的NetBeans为Netbeans 8.2

Eclipse Downloads | The Eclipse Foundation  https://www.eclipse.org/downloads/

Layui - 经典开源模块化前端 UI 组件库  https://layui.gitee.io/v2/

Index of /dist/tomcat  http://archive.apache.org/dist/tomcat/

Java 软件 | Oracle 中国  https://www.oracle.com/cn/java/

Welcome to Python.org  https://www.python.org/

MySQL　　https://www.mysql.com/downloads/

Document Search  https://datatracker.ietf.org/doc/search/?name=2616&sort=&rfcs=on&activedrafts=on

jQuery  https://jquery.com/

jQuery API 中文文档 | jQuery 中文网  https://www.jquery123.com/

jQuery API 中文文档 | jQuery API 中文在线手册 | jquery api 下载 | jquery api chm  https://jquery.cuishifeng.cn/

Download jQuery EasyUI 1.3.5 - jQuery EasyUI  http://www.jeasyui.com/download/v135.php

World Wide Web Consortium (W3C)  https://www.w3.org/

PHP: Downloads  https://www.php.net/downloads.php

PHP: exec - Manual  https://www.php.net/manual/zh/function.exec.php

RPM Search  http://rpm.pbone.net/index.php3?stat=26&dist=79&size=8575544&name=gcc-4.4.7-11.el6.i686.rpm

RPM resource gcc  http://www.rpmfind.net/linux/rpm2html/search.php?query=gcc&submit=Search+...&system=&arch=

CentOS Repositories - pkgs.org  https://centos.pkgs.org/

LNMP一键安装包 - CentOS/RadHat/Debian/Ubuntu下自动编译安装Nginx,PHP,MySQL,PHPMyAdmin  https://lnmp.org/

Index of /6.5/isos/x86_64  https://vault.centos.org/6.5/isos/x86_64/

FFmpeg  http://ffmpeg.org/

FFmpeg-php  http://ffmpeg-php.sourceforge.net/index.php