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Template:Str len/doc - 版本历史
2026-07-09T09:02:37Z
在这个wiki上该页的修订历史
MediaWiki 1.43.8
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imported>A2093064-bot：機器人35：更新模板使用量為34559
2021-03-07T21:08:49Z
<p><a href="/index.php?title=User:A2093064-bot/task/35&action=edit&redlink=1" class="new" title="User:A2093064-bot/task/35（页面不存在）">機器人35</a>：更新模板使用量為34559</p>
<p><b>新页面</b></p><div>{{documentation subpage}}<br />
{{high-use|34559}}<br />
{{translating|[[:en:Template:Str len/doc]]|time=2012-03-09}}<br />
這是{{tl|str len}}巨型模板。<br />
<br />
它取一字符串作為參數，並傳回它的長度（不包括開端及末端的空白字符）。它能數算到最多500，若字符串長過500則傳回500。<br />
<br />
'''注意'''：大多數情況下，使用{{tl|str ≥ len}}或其姊妹模板會更容易和佔用更少伺服器資源。請參閱以下的[[#參見|參見]]章節。<br />
<br />
=== 例子 ===<br />
<br />
假如參數是空白或未定義，它會視它的長度為0：<br />
<br />
:<code><nowiki>{{str len}}</nowiki></code> 傳回 {{str len}}<br />
:<code><nowiki>{{str len|}}</nowiki></code> 傳回 {{str len|}}<br />
:<code><nowiki>{{str len| }}</nowiki></code> 傳回 {{str len| }}<br />
<br />
即使字串包含空白字符、像一個數字或包含特別字符，它都能正確地數算長度：<br />
<br />
:<code><nowiki>{{str len| ab cde }}</nowiki></code> 傳回 {{str len| ab cde }}<br />
:<code><nowiki>{{str len| 1234567 }}</nowiki></code> 傳回 {{str len| 1234567 }}<br />
:<code><nowiki>{{str len| café åäö }}</nowiki></code> 傳回 {{str len| café åäö }}<br />
:<code><nowiki>{{str len| 字串包含空白字符、像一個數字或包含特別字符 }}</nowiki></code> 傳回 {{str len| 字串包含空白字符、像一個數字或包含特別字符 }}<br />
:<code><nowiki>{{str len| 499個字符... }}</nowiki></code> 傳回 {{str len| abcdefghi abcdefghi abcdefghi abcdefghi abcdefghi abcdefghi abcdefghi abcdefghi abcdefghi abcdefghi abcdefghi abcdefghi abcdefghi abcdefghi abcdefghi abcdefghi abcdefghi abcdefghi abcdefghi abcdefghi abcdefghi abcdefghi abcdefghi abcdefghi abcdefghi abcdefghi abcdefghi abcdefghi abcdefghi abcdefghi abcdefghi abcdefghi abcdefghi abcdefghi abcdefghi abcdefghi abcdefghi abcdefghi abcdefghi abcdefghi abcdefghi abcdefghi abcdefghi abcdefghi abcdefghi abcdefghi abcdefghi abcdefghi abcdefghi abcdefghi }}<br />
:<code><nowiki>{{str len| 1000個字符... }}</nowiki></code> 傳回 {{str len| abcdefghi abcdefghi abcdefghi abcdefghi abcdefghi abcdefghi abcdefghi abcdefghi abcdefghi abcdefghi abcdefghi abcdefghi abcdefghi abcdefghi abcdefghi abcdefghi abcdefghi abcdefghi abcdefghi abcdefghi abcdefghi abcdefghi abcdefghi abcdefghi abcdefghi abcdefghi abcdefghi abcdefghi abcdefghi abcdefghi abcdefghi abcdefghi abcdefghi abcdefghi abcdefghi abcdefghi abcdefghi abcdefghi abcdefghi abcdefghi abcdefghi abcdefghi abcdefghi abcdefghi abcdefghi abcdefghi abcdefghi abcdefghi abcdefghi abcdefghi abcdefghi abcdefghi abcdefghi abcdefghi abcdefghi abcdefghi abcdefghi abcdefghi abcdefghi abcdefghi abcdefghi abcdefghi abcdefghi abcdefghi abcdefghi abcdefghi abcdefghi abcdefghi abcdefghi abcdefghi abcdefghi abcdefghi abcdefghi abcdefghi abcdefghi abcdefghi abcdefghi abcdefghi abcdefghi abcdefghi abcdefghi abcdefghi abcdefghi abcdefghi abcdefghi abcdefghi abcdefghi abcdefghi abcdefghi abcdefghi abcdefghi abcdefghi abcdefghi abcdefghi abcdefghi abcdefghi abcdefghi abcdefghi abcdefghi abcdefghij }}<br />
<br />
=== 技術細節 ===<br />
<br />
MediaWiki沒有[[Help:解析器函數|解析器函數]]或[[Help:魔術字|魔術字]]來量度字串的長度。而使用模板來量度對伺服器來說是非常吃力的，因此這模板已經盡量優化。但是你應該考慮使用{{tl|str ≥ len}}，因在大多數情況下，使用該模板會更容易和佔用更少伺服器資源。<br />
<br />
這模板呼叫{{tl|str len/core}}來完成絕大部分工作。如要了解內部原理請參考/core。<br />
<br />
=== 參見 ===<br />
<br />
{{字串模板一覽|IRL}}<br />
<br />
<includeonly><br />
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[[Category:字符串处理模板|{{PAGENAME}}]]<br />
<br />
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[[uz:Andoza:Str len]]<br />
</includeonly></div>
imported>A2093064-bot