<html xmlns="http://www.w3.org/1999/xhtml"><head></head><body><p><anchor-end xmlns="urn:x-suika-fam-cx:markup:suikawiki:0:9:" a0:anchor="1" xmlns:a0="urn:x-suika-fam-cx:markup:suikawiki:0:9:">[1]</anchor-end> <dfn><code class="charname" xml:lang="en"><anchor xmlns="urn:x-suika-fam-cx:markup:suikawiki:0:9:">PLUS SIGN</anchor></code></dfn> (<dfn><code class="char"><anchor xmlns="urn:x-suika-fam-cx:markup:suikawiki:0:9:">+</anchor></code></dfn>、
<dfn><code class="char"><anchor xmlns="urn:x-suika-fam-cx:markup:suikawiki:0:9:">U+002B</anchor></code></dfn>) は、<anchor xmlns="urn:x-suika-fam-cx:markup:suikawiki:0:9:">正符号</anchor>です。</p><section><h1>用法</h1><p><anchor-end xmlns="urn:x-suika-fam-cx:markup:suikawiki:0:9:" a0:anchor="5" xmlns:a0="urn:x-suika-fam-cx:markup:suikawiki:0:9:">[5]</anchor-end> <figure class="short list"><ul><li><anchor xmlns="urn:x-suika-fam-cx:markup:suikawiki:0:9:">正符号</anchor></li><li><anchor xmlns="urn:x-suika-fam-cx:markup:suikawiki:0:9:">加算記号</anchor><ul><li><code>+=</code></li></ul></li><li><anchor xmlns="urn:x-suika-fam-cx:markup:suikawiki:0:9:">隣接兄弟結合子</anchor> (<anchor xmlns="urn:x-suika-fam-cx:markup:suikawiki:0:9:">選択子</anchor>)</li><li><anchor xmlns="urn:x-suika-fam-cx:markup:suikawiki:0:9:">部分アドレス</anchor> (<anchor xmlns="urn:x-suika-fam-cx:markup:suikawiki:0:9:">電子メールアドレス</anchor>)</li><li><anchor xmlns="urn:x-suika-fam-cx:markup:suikawiki:0:9:">予約展開</anchor> (<anchor xmlns="urn:x-suika-fam-cx:markup:suikawiki:0:9:">URI雛形</anchor>)</li><li><n xmlns="urn:x-suika-fam-cx:markup:suikawiki:0:9:">0x20</n> (<code class="MIME" xml:lang="en">application/x-www-form-urlencoded</code>)</li><li><anchor xmlns="urn:x-suika-fam-cx:markup:suikawiki:0:9:">Base64</anchor> <anchor xmlns="urn:x-suika-fam-cx:markup:suikawiki:0:9:">字母</anchor>の1つ</li><li><anchor xmlns="urn:x-suika-fam-cx:markup:suikawiki:0:9:">UTF-7</anchor> モード切替</li><li><anchor xmlns="urn:x-suika-fam-cx:markup:suikawiki:0:9:">構造化構文接尾辞</anchor> (<anchor xmlns="urn:x-suika-fam-cx:markup:suikawiki:0:9:">MIME型</anchor>)</li><li><anchor xmlns="urn:x-suika-fam-cx:markup:suikawiki:0:9:">URL scheme</anchor> の<anchor xmlns="urn:x-suika-fam-cx:markup:suikawiki:0:9:">プロトコル</anchor>区切り</li><li><cite>MAPLUS+</cite> シリーズ<ul><li><cite>MAPLUS+プラス</cite></li></ul></li><li><anchor xmlns="urn:x-suika-fam-cx:markup:suikawiki:0:9:">プラスドライバー</anchor></li><li><anchor xmlns="urn:x-suika-fam-cx:markup:suikawiki:0:9:">HTML+</anchor></li><li><anchor xmlns="urn:x-suika-fam-cx:markup:suikawiki:0:9:">IRC+</anchor></li><li><anchor xmlns="urn:x-suika-fam-cx:markup:suikawiki:0:9:">JSON+C</anchor></li><li><code>U+</code></li><li><anchor xmlns="urn:x-suika-fam-cx:markup:suikawiki:0:9:">RH+</anchor></li><li><code>++</code> (<anchor xmlns="urn:x-suika-fam-cx:markup:suikawiki:0:9:">演算子</anchor>)<ul><li><anchor xmlns="urn:x-suika-fam-cx:markup:suikawiki:0:9:">C++</anchor></li><li><anchor xmlns="urn:x-suika-fam-cx:markup:suikawiki:0:9:">Visual J++</anchor></li></ul></li><li><anchor xmlns="urn:x-suika-fam-cx:markup:suikawiki:0:9:">T+</anchor></li><li><anchor xmlns="urn:x-suika-fam-cx:markup:suikawiki:0:9:">震度</anchor>の「強」</li><li><anchor xmlns="urn:x-suika-fam-cx:markup:suikawiki:0:9:">正</anchor>の<anchor xmlns="urn:x-suika-fam-cx:markup:suikawiki:0:9:">電荷</anchor></li><li><anchor xmlns="urn:x-suika-fam-cx:markup:suikawiki:0:9:">陽イオン</anchor></li><li><anchor xmlns="urn:x-suika-fam-cx:markup:suikawiki:0:9:">MJ+</anchor></li><li><cite><anchor xmlns="urn:x-suika-fam-cx:markup:suikawiki:0:9:">Google+</anchor></cite></li><li><anchor xmlns="urn:x-suika-fam-cx:markup:suikawiki:0:9:">+1</anchor></li><li><cite><anchor xmlns="urn:x-suika-fam-cx:markup:suikawiki:0:9:">少年ジャンプ+</anchor></cite></li></ul></figure></p></section><section><h1>関連</h1><p><sw-see xmlns="urn:x-suika-fam-cx:markup:suikawiki:0:9:"> <anchor>±</anchor> </sw-see></p></section><section><h1>メモ</h1><p><anchor-end xmlns="urn:x-suika-fam-cx:markup:suikawiki:0:9:" a0:anchor="2" xmlns:a0="urn:x-suika-fam-cx:markup:suikawiki:0:9:">[2]</anchor-end> <cite>NOTE-css-potential-19970819</cite>
( (<time>2000-03-13 23:37:56 +09:00</time> 版))
<anchor-external xmlns="urn:x-suika-fam-cx:markup:suikawiki:0:9:" a0:resScheme="URI" xmlns:a0="urn:x-suika-fam-cx:markup:suikawiki:0:9:" a0:resParameter="http://www.w3.org/TR/NOTE-css-potential-19970819#elementId=1029001">http://www.w3.org/TR/NOTE-css-potential-19970819#elementId=1029001</anchor-external></p><p><anchor-end xmlns="urn:x-suika-fam-cx:markup:suikawiki:0:9:" a0:anchor="3" xmlns:a0="urn:x-suika-fam-cx:markup:suikawiki:0:9:">[3]</anchor-end> <cite xml:lang="en">Charinfo — &quot;+&quot;</cite>
( (<time>2013-03-16 13:51:56 +09:00</time> 版))
<anchor-external xmlns="urn:x-suika-fam-cx:markup:suikawiki:0:9:" a0:resScheme="URI" xmlns:a0="urn:x-suika-fam-cx:markup:suikawiki:0:9:" a0:resParameter="http://chars.suikawiki.org/char/002B">http://chars.suikawiki.org/char/002B</anchor-external></p><p><anchor-end xmlns="urn:x-suika-fam-cx:markup:suikawiki:0:9:" a0:anchor="4" xmlns:a0="urn:x-suika-fam-cx:markup:suikawiki:0:9:">[4]</anchor-end> <cite xml:lang="en">Email Addressing FAQ (How to use user+box@host addresses)</cite>
( (<time>2014-07-16 06:39:15 +09:00</time> 版))
<anchor-external xmlns="urn:x-suika-fam-cx:markup:suikawiki:0:9:" a0:resScheme="URI" xmlns:a0="urn:x-suika-fam-cx:markup:suikawiki:0:9:" a0:resParameter="http://www.faqs.org/faqs/mail/addressing/">http://www.faqs.org/faqs/mail/addressing/</anchor-external></p><p><anchor-end xmlns="urn:x-suika-fam-cx:markup:suikawiki:0:9:" a0:anchor="6" xmlns:a0="urn:x-suika-fam-cx:markup:suikawiki:0:9:">[6]</anchor-end> <cite xml:lang="ja">芸名に句読点が含まれる芸能人の一覧 - Wikipedia</cite>
(<time>2016-12-31 17:32:04 +09:00</time>)
<anchor-external xmlns="urn:x-suika-fam-cx:markup:suikawiki:0:9:" a0:resScheme="URI" xmlns:a0="urn:x-suika-fam-cx:markup:suikawiki:0:9:" a0:resParameter="https://ja.wikipedia.org/wiki/%E8%8A%B8%E5%90%8D%E3%81%AB%E5%8F%A5%E8%AA%AD%E7%82%B9%E3%81%8C%E5%90%AB%E3%81%BE%E3%82%8C%E3%82%8B%E8%8A%B8%E8%83%BD%E4%BA%BA%E3%81%AE%E4%B8%80%E8%A6%A7">https://ja.wikipedia.org/wiki/%E8%8A%B8%E5%90%8D%E3%81%AB%E5%8F%A5%E8%AA%AD%E7%82%B9%E3%81%8C%E5%90%AB%E3%81%BE%E3%82%8C%E3%82%8B%E8%8A%B8%E8%83%BD%E4%BA%BA%E3%81%AE%E4%B8%80%E8%A6%A7</anchor-external></p><p><anchor-end xmlns="urn:x-suika-fam-cx:markup:suikawiki:0:9:" a0:anchor="7" xmlns:a0="urn:x-suika-fam-cx:markup:suikawiki:0:9:">[7]</anchor-end> <cite xml:lang="ja">学名 - Wikipedia</cite>
(<time>2018-01-09 15:06:54 +09:00</time>)
<anchor-external xmlns="urn:x-suika-fam-cx:markup:suikawiki:0:9:" a0:resScheme="URI" xmlns:a0="urn:x-suika-fam-cx:markup:suikawiki:0:9:" a0:resParameter="https://ja.wikipedia.org/wiki/%E5%AD%A6%E5%90%8D">https://ja.wikipedia.org/wiki/%E5%AD%A6%E5%90%8D</anchor-external></p><figure class="quote"><figcaption><anchor-end xmlns="urn:x-suika-fam-cx:markup:suikawiki:0:9:" a0:anchor="8" xmlns:a0="urn:x-suika-fam-cx:markup:suikawiki:0:9:">[8]</anchor-end> <cite xml:lang="ja">ランディス・ギア - Wikipedia</cite>
(<time>2018-02-21 06:11:44 +09:00</time>)
<anchor-external xmlns="urn:x-suika-fam-cx:markup:suikawiki:0:9:" a0:resScheme="URI" xmlns:a0="urn:x-suika-fam-cx:markup:suikawiki:0:9:" a0:resParameter="https://ja.wikipedia.org/wiki/%E3%83%A9%E3%83%B3%E3%83%87%E3%82%A3%E3%82%B9%E3%83%BB%E3%82%AE%E3%82%A2">https://ja.wikipedia.org/wiki/%E3%83%A9%E3%83%B3%E3%83%87%E3%82%A3%E3%82%B9%E3%83%BB%E3%82%AE%E3%82%A2</anchor-external></figcaption><blockquote><p>ランディス+ギア(Landis+Gyr)はメーターなどのエネルギー管理装置技術を扱う企業。スイスのツークの本社を置き、30カ国以上に45の傘下企業を保有している多国籍企業。</p></blockquote></figure><p><anchor-end xmlns="urn:x-suika-fam-cx:markup:suikawiki:0:9:" a0:anchor="9" xmlns:a0="urn:x-suika-fam-cx:markup:suikawiki:0:9:">[9]</anchor-end> <cite xml:lang="ja">KOH+ - Wikipedia</cite>
(<time>2018-02-23 19:13:08 +09:00</time>)
<anchor-external xmlns="urn:x-suika-fam-cx:markup:suikawiki:0:9:" a0:resScheme="URI" xmlns:a0="urn:x-suika-fam-cx:markup:suikawiki:0:9:" a0:resParameter="https://ja.wikipedia.org/wiki/KOH%2B">https://ja.wikipedia.org/wiki/KOH%2B</anchor-external></p><figure class="short list data"><figcaption><anchor-end xmlns="urn:x-suika-fam-cx:markup:suikawiki:0:9:" a0:anchor="10" xmlns:a0="urn:x-suika-fam-cx:markup:suikawiki:0:9:">[10]</anchor-end> <anchor xmlns="urn:x-suika-fam-cx:markup:suikawiki:0:9:">文字</anchor></figcaption><dl><dt><f xmlns="urn:x-suika-fam-cx:markup:suikawiki:0:9:">文字</f></dt><dd><code>+</code></dd><dt><f xmlns="urn:x-suika-fam-cx:markup:suikawiki:0:9:">字形類似</f></dt><dd><code>十</code></dd><dt><f xmlns="urn:x-suika-fam-cx:markup:suikawiki:0:9:">字形類似</f></dt><dd><code>†</code></dd><dt><f xmlns="urn:x-suika-fam-cx:markup:suikawiki:0:9:">回転類似</f></dt><dd><code>×</code></dd><dt><f xmlns="urn:x-suika-fam-cx:markup:suikawiki:0:9:">字形類似</f></dt><dd><sw-ch xmlns="urn:x-suika-fam-cx:markup:suikawiki:0:9:">➕</sw-ch></dd></dl></figure><ul><li><anchor-end xmlns="urn:x-suika-fam-cx:markup:suikawiki:0:9:" a0:anchor="12" xmlns:a0="urn:x-suika-fam-cx:markup:suikawiki:0:9:">[12]</anchor-end> 
<cite xml:lang="ja">Xユーザーの마이너스의 손さん: 「이스라엘에서는 &quot;+&quot; 기호를 쓰지 않는다...jpg https://t.co/d25qyfxYfU 파도파도 괴담.. https://t.co/FJFB8oLde6」 / X</cite>, <time>午後2:22 · 2026年4月26日<attrvalue xmlns="urn:x-suika-fam-cx:markup:suikawiki:0:10:">2026-04-26T05:22:44.000Z</attrvalue></time>, <time>2026-04-26T11:09:21.000Z</time> <anchor-external xmlns="urn:x-suika-fam-cx:markup:suikawiki:0:9:" a0:resScheme="URI" xmlns:a0="urn:x-suika-fam-cx:markup:suikawiki:0:9:" a0:resParameter="https://x.com/Dangerplanet/status/2048271539154669703">https://x.com/Dangerplanet/status/2048271539154669703</anchor-external></li><li><anchor-end xmlns="urn:x-suika-fam-cx:markup:suikawiki:0:9:" a0:anchor="11" xmlns:a0="urn:x-suika-fam-cx:markup:suikawiki:0:9:">[11]</anchor-end> <cite xml:lang="ja">Xユーザーの車魄さん: 「청나라의 수학자 이선란도 서양의 수학책을 번역할 때 +를 丄 형태로 썼던데, 이스라엘과 유사하지만 이쪽은 열 십(十)과 구별하고자 한 것으로 추정 - 기호는 한 일(一)과 구별하기 위해 丅이다 https://t.co/ihyFyen2Tf」 / X</cite>, <time>午後6:17 · 2026年4月26日<attrvalue xmlns="urn:x-suika-fam-cx:markup:suikawiki:0:10:">2026-04-26T09:17:04.000Z</attrvalue></time>, <time>2026-04-26T11:09:21.000Z</time> <anchor-external xmlns="urn:x-suika-fam-cx:markup:suikawiki:0:9:" a0:resScheme="URI" xmlns:a0="urn:x-suika-fam-cx:markup:suikawiki:0:9:" a0:resParameter="https://x.com/chabek6/status/2048330510750138798/photo/1">https://x.com/chabek6/status/2048330510750138798/photo/1</anchor-external></li></ul><p><anchor-end xmlns="urn:x-suika-fam-cx:markup:suikawiki:0:9:" a0:anchor="13" xmlns:a0="urn:x-suika-fam-cx:markup:suikawiki:0:9:">[13]</anchor-end> <cite xml:lang="ja">『りすLOG 火曜日 篠原侑のちゃちゃっとだいありー』#319 - ニコニコ動画</cite>
(<time>2026-05-13 20:24:17 +09:00</time>)
<anchor-external xmlns="urn:x-suika-fam-cx:markup:suikawiki:0:9:" a0:resScheme="URI" xmlns:a0="urn:x-suika-fam-cx:markup:suikawiki:0:9:" a0:resParameter="https://www.nicovideo.jp/watch/so46297153">https://www.nicovideo.jp/watch/so46297153</anchor-external></p></section></body></html>