Forex Priority

Euro

Pound Sterling

Australian Dollar

New Zealand Dollar

Unit States Dollar

Candian Dollar

Swiss franc

Japanese yen

Apache or Nginx to serve Django applications?

 https://stackoverflow.com/questions/9161296/apache-or-nginx-to-serve-django-applications#comment11523498_9161546

SSH Key

 https://www.digitalocean.com/community/tutorials/how-to-configure-ssh-key-based-authentication-on-a-linux-server

Docker

 https://medium.com/@charlie.b.ohara/building-a-flask-rest-api-with-docker-94ca4219f460

Linux

 https://hungwei0331.pixnet.net/blog/post/351125458

Synology

 https://mariushosting.com/how-to-ssh-into-a-synology-nas/

https://techjogging.com/installing-and-using-pip-on-synology-dsm.html

https://community.synology.com/enu/forum/1/post/145224

https://kb.synology.com/zh-tw/DSM/help/DSM/AdminCenter/connection_ddns?version=7

http://timsherratt.org/digital-heritage-handbook/docs/python-pip-virtualenv/

https://kb.synology.com/en-me/DSM/tutorial/How_do_I_customize_the_alias_port_or_domain_for_specific_Synology_services

Telegram bot

 //Set Webhook

https://api.telegram.org/bot123456:ABCDEF-1234/setWebhook?url=https://你的DomainName/你的程式路徑

{

  "ok": true,

  "result": true,

  "description": "Webhook was set"

}

=================================================

//Delete(Remove) Webhook

https://api.telegram.org/bot123456:ABCDEF-1234/deleteWebhook

{

  "ok": true,

  "result": true,

  "description": "Webhook was deleted"

}

==================================================

//Get Webhook Information

https://api.telegram.org/bot123456:ABCDEF-1234/getWebhookInfo

{

  "ok": true,

  "result": {

    "url": "",

    "has_custom_certificate": false,

    "pending_update_count": 0

  }

}

Program to a Chip

 https://www.build-electronic-circuits.com/how-to-transfer-a-c-program-to-a-chip/

https://www.build-electronic-circuits.com/microcontroller-programming/

COVID Data

打針人數數據 by HK GOV

https://data.gov.hk/en-data/dataset/hk-fhb-fhbcovid19-vaccination-rates-over-time-by-age

檢測數字 by HK GOV

https://data.gov.hk/tc-data/dataset/hk-dh-chpsebcddr-novel-infectious-agent/resource/d9766bfb-ae78-4b52-a270-740c50978215

C++ for windows 10/11

1. Download msys64 from mingw-w64.org
2. install msys2 with installer(msys2-x86-xxxxx.exe)
3. open msys2, type  below and let all these install/update within the msys2 terminal
1. "pacman -Syu" 
2. "pacman -Su"
4. Open mingw64, type below and let all these install/update within the mingw64 terminal
1. "pacman -Ss gcc" for C compiler
2. "pacman -S mingw-w64-x86_64-gcc" for library update
3. check with "gcc --version" & "g++ --version" to check whether everything install well
4. "pacman -Ss gdb" for debugger
5. "pacmain -S mingw-w64-x86_64-gdb" for debugger library update
6. "gdb --version" to check everything install well 
5. Go system environment and set Drive:\msys64\mingw64\bin as Path

Reference

Common Math functions

https://en.cppreference.com/w/cpp/numeric/math

ASCII Table

https://www.asciitable.com/