报错信息：

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$ git push -u origin main
fatal: unable to access 'https://github.com/username/repository-name/': Failed to connect to github.com port 443 after 21086 ms: Couldn't connect to server

无法连接到github.com端口443：无法连接到服务器。

出现的问题：无法将本地代码提交到 Github 仓库。

经过查找发现许多人在克隆时也会遇到这种情况。

原因可能为：网络连接问题或防火墙限制。

下面为解决方式：

有关绮良的同人作品画廊

properties文件

是java所支持的配置文件类型.
java中的properties文件是一种配置文件，
主要用于表达配置信息，
文件类型为*.properties，
格式为文本文件，
在properties文件中，可以用”#”来作注释.

前提介绍

知道下面这些的人可直接跳转到：《电脑本地安装：Node.js》或者《电脑本地安装：Hexo》观看。

Instructions

In this exercise you’ll be processing log-lines.

Each log line is a string formatted as follows: "[<LEVEL>]: <MESSAGE>".

https://exercism.org/tracks/java/exercises/lasagna

Instructions

In this exercise you’re going to write some code to help you cook a brilliant lasagna from your favorite cooking book.

You have four tasks, all related to the time spent cooking the lasagna.

https://exercism.org/tracks/java/exercises/annalyns-infiltration

Instructions

In this exercise, you’ll be implementing the quest logic for a new RPG game a friend is developing. The game’s main character is Annalyn, a brave girl with a fierce and loyal pet dog. Unfortunately, disaster strikes, as her best friend was kidnapped while searching for berries in the forest. Annalyn will try to find and free her best friend, optionally taking her dog with her on this quest.

After some time spent following her best friend’s trail, she finds the camp in which her best friend is imprisoned. It turns out there are two kidnappers: a mighty knight and a cunning archer.

Electron 简介

Electron（官网：https://www.electronjs.org/zh/）是由Github开发，用HTML，CSS和JavaScript来构建跨平台桌面应用程序的一个开源框架。

什么是 YAML？

yaml官网

YAML: YAML Ain’t Markup Language™
What It Is:
YAML is a human-friendly data serialization
language for all programming languages.
It uses Unicode printable characters, some of which provide structural information and the rest containing the data itself.
There are many kinds of data structures, but they can all be adequately represented with three basic primitives: mappings (hashes/dictionaries), sequences (arrays/lists) and scalars (strings/numbers).
YAML was specifically created to work well for common use cases such as: configuration files, log files, interprocess messaging, cross-language data sharing, object persistence and debugging of complex data structures.

1、安装服务器端

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sudo apt-get install mysql-server

2、安装客户端

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sudo apt-get install mysql-client

3、安装 mysql 相关库

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sudo apt-get install libmysqlclient-dev