Hubert's Memorandums

2020/04/15

PyGame 教學 (一)

基礎模版：


# -*- coding: utf-8 -*-
"""
Created on Sun Apr 12 15:16:50 2020

@author: Hubert
"""

import pygame
init = pygame.init()
screen = pygame.display.set_mode((400,300))
title = pygame.display.set_caption('PyGame Demo')
''' -----------------------------------------------------------------------'''
run = True
while run:

    for event in pygame.event.get():
        if event.type == pygame.QUIT:
            run = False
        print(event)
    '''--------------------------------------------------------------------'''
    update = pygame.display.update()
''' -----------------------------------------------------------------------'''   
close = pygame.quit()

2019/04/22

利用 Veyon + WinSCP 讓學生端電腦下載FTP server上的多個檔案

Teacher's PC

需事先安裝設定 Veyon with Master & FileZilla FTP Server

Students' PCs

安裝 Veyon without Master
安裝WinSCP，預設路徑 ( C:\Program Files (x86)\WinSCP\ )
建立 C:\bat 資料夾，並新增 scpget.bat & scpcmd.txt 二個檔案

[scpget.bat]

@"C:\Program Files (x86)\WinSCP\winscp.com" /ini=nul /script=c:\bat\scpcmd.txt

@exit

scpget.bat 是一個批次檔，簡單的一句話，執行 winscp.com 並讀取預先建好的文字檔scpcmd.txt 裡的內容。在批次檔的每一行前面加個小老鼠 @ ，在 dos 視窗就不會顯示所執行的指令，如果執行速度快，只會在畫面上看到 dos視窗閃一下。

----

[scpcmd.txt]

open ftp://user:passwd@192.168.1.1

lcd c:\temp

get *.*

exit

scpcmd.txt 裡是WinSCP專用的語法，每一行一個指令。這個檔案的意思是讓 winscp.com 去連上 192.168.1.1 這台ftp server，帳號 user、密碼 passwd，並將本地端的目錄設定為 c:\temp， get *.*就是把 ftp server上的檔案抓下來。然後 exit 結束 winscp.com 這支程式。一句話簡述，就是把ftp server 上的檔案下載到學生端電腦 c:\temp 裡，下載完後結束程式。

---------------------------------------------------------------

最後操作Teacher's PC 透過 Veyon讓Students' PCs 執行 C:\bat\scpget.bat 即可。

[延伸應用]

執行批次檔清空特定資料的檔案

執行批次檔安裝指定軟體或更新

[link]

https://veyon.io/

https://winscp.net/
https://filezilla-project.org/

2018/05/12

錯誤身教

火車上，人滿為患，旁邊座位的乘客到站下車，一嬤見狀，要幼孫來坐，幼孫不肯，並說：「無座票，不當坐。」
嬤回：「坐無妨，待人趕，再讓座。」
孫又答：「何必。」
嬤又回：「汝不坐，我坐。」
語畢，嬤強拉孫入座，孫哭鬧。
不久，該座的乘客走來，嬤先發制人：「
再一站就到了。
再一站就到了。
再一站就到了。」
對方原地苦笑 ......

#這阿嬤打從一開始就沒想讓位了啊

2018/04/13

AVSIM Online

It has a lot of FSX's resources here.

[link]
https://www.avsim.com/

2018/04/07

FreeMeshX 2.0

FreeMeshX is a global terrain mesh replacement for the stock terrain mesh in Microsoft Flight Simulator – It is available free to bring more topography fidelity to your simulation!

[link]
http://ninetwopro.com/freemeshx/

2018/03/28

How to Format a Mac drive on Windows 10

HFSExplorer is easy and convenient to use.

Must have a Java SE Runtime Environment (version 5.0 or greater) before running HFSexplorer.

[link]
http://www.catacombae.org/hfsexplorer/

2018/01/29

Mount disk(s) automatically on boot

The goal is to add another hard disk (sdb1) which assigned to partition /home automatically on boot.

[command]
vi /etc/fstab

[modify]
/dev/sdb1 /home ext4 defaults 1 0

Backup partitions

Here are several samples to backup partitions by tarball.

I wrote this notes when I tried to re-build my laboratory's mail server in 2010.

The following command is to backup the root / partition.

[command]
sudo tar -cvpzf ubuntuXYZ.tar.gz --exclude=/ubuntuXYZ.tar.gz --exclude=/proc --exclude=/lost+found --exclude=/mnt --exclude=/sys --exclude=/media --exclude=/dev /

The following command is to backup specific partition (e.g. /home and /etc).

[command]
sudo tar -cvpzf home0129.tar.gz --exclude=/home/home0129.tar.gz /home
sudo tar -cvpzf etc0129.tar.gz --exclude=/etc/etc0129.tar.gz /etc

---------------------------------------------------------------

Restore

The following command is to restore data from backup file.

[command]

sudo tar -xvpfz home0129.tar.gz -C /home

2017/12/14

Install OpenCV for Python

It's simple and convenient.

[command]
pip install opencv_python

2017/12/13

How to solve MSI GS60 2PE Ghost Pro Bluetooth issue [win10]

Don't use Windows 10 built-in driver!
For the reason that Bluetooth devices would be disconnected while Wi-Fi getting busy.
It's recommended to install Intel official drivers for "Intel® Dual Band Wireless-AC 7260".
Please install both of Wi-Fi and Bluetooth drivers.

[Link]
https://www.intel.com/content/www/us/en/support/articles/000005559/network-and-i-o/wireless-networking.html