===== メモ =====
いや、下記は自分用の備忘録ですのでお気になさらずに。

=== 日本語 ===
  * [[https://nihongo-base.com/grammarandvocab-grammardifference-1/|類似文法の違いが一瞬で分かる！[文脈制限]のヒント【Part1】]]

=== Google Nest ===
  * [[https://support.google.com/googlenest/answer/7364558?hl=en&ref_topic=7030084|Relax with your Google Nest or Home speaker or display]]

=== 文字列を逆順に ===
  * =CONCATENATE(ARRAYFORMULA(MID(C2,SEQUENCE(1,LEN(C2),LEN(C2),-1),1)))

=== DokuWiki ===
  * 必要なプラグイン
    * [[https://www.dokuwiki.org/plugin:upgrade|upgrade]] / [[https://www.dokuwiki.org/plugin:move|move]] / [[https://www.dokuwiki.org/plugin%3Acolor|color]]
  * 不要なプラグイン：Active Directory Auth, LDAP Auth, authpdo, Popularity Feedback
    * https://techwiki.u-ff.com/dokuwiki/extension

=== emacs ===
  * 文字コード明示：-*- coding:utf-8 -*- 

=== Python ===
  * [[https://towardsdatascience.com/how-to-easily-convert-a-python-script-to-an-executable-file-exe-4966e253c7e9|How to Easily Convert a Python Script to an Executable File (.exe)]]

=== 素材 ===
  * [[https://storyset.com/]] : 色を変えられる

=== 広告掲示 ===
  * [[https://skima.jp/item/search?s=1&cg=55]]：スキマ（校正・添削）
  * [[https://tsunagu.cloud/products/search?category_id=3&sort=&title=%E6%A0%A1%E6%AD%A3]]：つなぐ

=== 中国語 ===
  * [[https://ykt.eduyun.cn/ykt/sjykt/index.html|国家中小学网络云平台]]

=== Let's Encrypt / SSL ===
  * [[https://www.server-world.info/query?os=Ubuntu_20.04&p=httpd&f=3]]

=== How to download Excel file (.xlsx) by Python CGI ===
<code python>
import openpyxl
import sys
import os
import shutil
import tempfile

wb = openpyxl.Workbook()
ws = wb.active
c = ws.cell(row=5, column=5)
c.value = 3.14

with tempfile.NamedTemporaryFile() as tmp:
  wb.save(tmp.name)
  tmp.seek(0)
  stream = tmp.read()

print("Content-Type: application/octet-stream")
print('Content-Disposition: attachment; filename="results.xlsx"')
print("Content-Length: " + str(len(stream)))
print('Cache-Control: max-age=0')
print()

sys.stdout.flush()
sys.stdout.buffer.write(stream)
</code>