blocks|key|2134722|text|像这样的东西可能会起作用：|type|unstyled|depth|inlineStyleRanges|entityRanges|data|2134723|/\$(\d*\.?\d%2B?)/|code-block|syntax|javascript|2134724|entityMap^0|0|0^^$0|@$1|2|3|4|5|6|7|I|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|J|8|@]|9|@]|A|$E|F]]|$1|G|3|-4|5|6|7|K|8|@]|9|@]|A|$]]]|H|$]]

Something like this will probably work:

<pre><code>/\$(\d*\.?\d+?)/
</code></pre>

blocks|key|5139886|text|\$(\d*.?\d*)应该可以工作，虽然不是最优的，但可能有用。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|5139887|(重要:转义$和.，这是特殊字符)|5139888|entityMap^0|0|0^^$0|@$1|2|3|4|5|6|7|F|8|@]|9|@]|A|$]]|$1|B|3|C|5|6|7|G|8|@]|9|@]|A|$]]|$1|D|3|-4|5|6|7|H|8|@]|9|@]|A|$]]]|E|$]]

\$(\d*\.?\d*) should work, not optimal but probably useful.

(Important: escape $ and ., which are special characters)

blocks|key|5140074|text|[$]?[0-9]*(\.)?[0-9]?[0-9]?|type|unstyled|depth|inlineStyleRanges|offset|length|style|CODE|entityRanges|data|5140075|这应该匹配那些有$标志的和没有的。|5140076|entityMap^0|0|R|0|8|1|0^^$0|@$1|2|3|4|5|6|7|J|8|@$9|K|A|L|B|C]]|D|@]|E|$]]|$1|F|3|G|5|6|7|M|8|@$9|N|A|O|B|C]]|D|@]|E|$]]|$1|H|3|-4|5|6|7|P|8|@]|D|@]|E|$]]]|I|$]]

<code>[$]?[0-9]*(\.)?[0-9]?[0-9]?</code>

This should match those with a <code>$</code> sign and those without.

blocks|key|222963|text|此正则表达式将适用于多种货币：$£欧元|type|unstyled|depth|inlineStyleRanges|entityRanges|data|222964|[\$\£\€](\d%2B(?:\.\d{1,2})?)|code-block|syntax|javascript|222965|Example|offset|length|222966|entityMap|0|LINK|mutability|MUTABLE|url|https://xrg.es/#1cz94ew^0|0|0|0|7|0|0^^$0|@$1|2|3|4|5|6|7|S|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|T|8|@]|9|@]|A|$E|F]]|$1|G|3|H|5|6|7|U|8|@]|9|@$I|V|J|W|1|X]]|A|$]]|$1|K|3|-4|5|6|7|Y|8|@]|9|@]|A|$]]]|L|$M|$5|N|O|P|A|$Q|R]]]]

This regex will work with multiple currencies: $ £ €

<pre><code>[\$\£\€](\d+(?:\.\d{1,2})?)
</code></pre>

<a href="https://xrg.es/#1cz94ew" rel="noreferrer">Example</a>

blocks|key|221240|text|这个查找字符串中的第一个十进制数：|type|unstyled|depth|inlineStyleRanges|entityRanges|data|221241|%5E[%5E\d]*(\d%2B%7C\d%2B((,%7C\.)\d{1,2}))(\s%7C[a-zA-Z)]%7C€%7C$).*|code-block|syntax|javascript|221242|221243|仅查找具有0-2个小数点或逗号的数字允许|unordered-list-item|221244|在数字前后不需要空格|221245|数字不能以任何分隔符结尾(例如12.12。或者12个！is+not+returned)|221246|number+can+end+with+Euro+sign+Euro|221247|处理美国负数($1233.50)|221248|221249|entityMap^0|0|0|0|0|0|0|0|0|0^^$0|@$1|2|3|4|5|6|7|V|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|W|8|@]|9|@]|A|$E|F]]|$1|G|3|-4|5|6|7|X|8|@]|9|@]|A|$]]|$1|H|3|I|5|J|7|Y|8|@]|9|@]|A|$]]|$1|K|3|L|5|J|7|Z|8|@]|9|@]|A|$]]|$1|M|3|N|5|J|7|10|8|@]|9|@]|A|$]]|$1|O|3|P|5|J|7|11|8|@]|9|@]|A|$]]|$1|Q|3|R|5|J|7|12|8|@]|9|@]|A|$]]|$1|S|3|-4|5|6|7|13|8|@]|9|@]|A|$]]|$1|T|3|-4|5|6|7|14|8|@]|9|@]|A|$]]]|U|$]]

This one finds first decimal number in a string:

<pre><code>^[^\d]*(\d+|\d+((,|\.)\d{1,2}))(\s|[a-zA-Z)]|€|$).*
</code></pre>

<ul>
<li>looks only for numbers with 0-2 decimals decimal point or comma allowed</li>
<li>no need for spaces before or after the number</li>
<li>number must not end with any delimiter (eg. 12.12. or 12! is not returned)</li>
<li>number can end with Euro sign €</li>
<li>works on US negative numbers ($1233.50)</li>
</ul>

blocks|key|2134807|text|这里有一个替换和提取的方法|type|unstyled|depth|inlineStyleRanges|entityRanges|data|2134808|摘录：|offset|length|style|BOLD|2134809|preg_match('/\$([0-9]%2B[\.]*[0-9]*)/',$string,$matches);
foreach($matches+as+$match)+{
++echo+$match." ";
}
//echo+$matches[0];+for+just+the+first+match|code-block|syntax|javascript|2134810|Modify/Replace:|2134811|$string+=+preg_replace_callback('/\$([0-9]%2B[\.]*[0-9]*)/',+function+($matches)+{


++++++++++++foreach+($matches+as+$match)+{
++++++++++++++++//+only+if+value+is+!empty+and+higher+than+0
++++++++++++++++$tmp+=+str_replace("$",+"",+$match);
++++++++++++++++if+($tmp+>+0+&&+$tmp+!=+"")+{
++++++++++++++++++++//do+something+to+$tmp+in+this+case+round+to+two+decimal+places
++++++++++++++++++++return+"$"+.+round($tmp,2);

++++++++++++++++}

++++++++++++}

++++++++},+$string);|2134812|在我的替换示例中，可能有一种更好的方法来处理符号。|2134813|entityMap^0|0|0|3|0|0|0|F|0|0|0^^$0|@$1|2|3|4|5|6|7|U|8|@]|9|@]|A|$]]|$1|B|3|C|5|6|7|V|8|@$D|W|E|X|F|G]]|9|@]|A|$]]|$1|H|3|I|5|J|7|Y|8|@]|9|@]|A|$K|L]]|$1|M|3|N|5|6|7|Z|8|@$D|10|E|11|F|G]]|9|@]|A|$]]|$1|O|3|P|5|J|7|12|8|@]|9|@]|A|$K|L]]|$1|Q|3|R|5|6|7|13|8|@]|9|@]|A|$]]|$1|S|3|-4|5|6|7|14|8|@]|9|@]|A|$]]]|T|$]]

Here's a way to replace and extract

Extract:

<pre><code>preg_match('/\$([0-9]+[\.]*[0-9]*)/',$string,$matches);
foreach($matches as $match) {
 echo $match."&lt;br&gt;";
}
//echo $matches[0]; for just the first match
</code></pre>

Modify/Replace:

<pre><code>$string = preg_replace_callback('/\$([0-9]+[\.]*[0-9]*)/', function ($matches) {


 foreach ($matches as $match) {
 // only if value is !empty and higher than 0
 $tmp = str_replace("$", "", $match);
 if ($tmp &gt; 0 &amp;&amp; $tmp != "") {
 //do something to $tmp in this case round to two decimal places
 return "$" . round($tmp,2);

 }

 }

 }, $string);
</code></pre>

There's probably a better way to handle the symbol on my replacement example.

blocks|key|3025372|text|正则表达式过滤出数字:字符串Regex+=+(0-9%2B，.?)%2B你可以这样使用它：|type|unstyled|depth|inlineStyleRanges|entityRanges|data|3025373|CurrencySymbol+%2B正则表达式regex+%2B+CurrencySymbol|3025374|entityMap^0|0|0^^$0|@$1|2|3|4|5|6|7|F|8|@]|9|@]|A|$]]|$1|B|3|C|5|6|7|G|8|@]|9|@]|A|$]]|$1|D|3|-4|5|6|7|H|8|@]|9|@]|A|$]]]|E|$]]

Regex to filter out number:
String regex = ([0-9]+[, .]?)+
You can use it like this:

CurrencySymbol + regex
regex + CurrencySymbol

I have a string, where price value($544.50) can be anywhere in the string.
eg: HP G60-630US Notebook: Laptops | RadioShack.com --> $259.97 (radioshack.com)

I need to get the value: 259.97 out of the string

For this i tried using some random regex's.
But no luck!

Can someone help me, giving a proper regex string for retrieving this price value from a string.

Thanks in advance.

Get price value from a string

翻译质量差，导致语言生硬或混乱。

没有提供实际的解决方法或示例。

解答不清晰，无法理解或解决问题。

页面排版不美观，阅读体验差。

文章

问答

视频

学习中心

腾讯云实验室

直播

竞赛

腾讯云代码分析专区

腾讯iOA零信任安全管理系统专区

腾讯云架构师技术同盟交流圈

腾讯云数据库专区

腾讯云顾问专区

腾讯云原生专区

腾讯混元专区

腾讯云TCE专区

腾讯云Lighthouse专区

腾讯云HAI专区

腾讯云Edgeone专区

腾讯云存储专区

腾讯云智能专区

腾讯轻联专区 

腾讯云开发专区

TAPD专区

腾讯轻量云游戏服专区

腾讯云最具价值专家

腾讯云架构师技术同盟

腾讯云创作之星

腾讯云开发者先锋

腾讯云代码助手

云原生构建

TAPD 敏捷项目管理

Cloud Studio

SDK中心

API中心

命令行工具

涵盖代码开发、场景应用、自动测试全流程，助你从零构建专属AI助手

一站式MCP教程库，解锁AI应用新玩法

我有一个字符串，其中价格值($544.50)可以是字符串中的任何位置。例如:惠普G60-630US笔记本电脑:笔记本电脑| RadioShack.com --> 259.97美元(radioshack.com)我需要从字符串中获取值: 259.97为此，我尝试使用一些随机的正则表达式，但是没有成功！谁能帮助我，给出一个...

问从字符串中获取价格值
EN

Stack Overflow用户

社区

活动

圈层

关于

腾讯云开发者

热门产品

热门推荐

更多推荐

问从字符串中获取价格值EN