你提供的 HTML 中，XPath 表达式：
```xpath
br[@class="BR"]/following::text()
```
表示：
> **选择所有 `class="BR"` 的 `<br>` 标签之后的文本节点（按文档顺序）**。
---
## ✅ **HTML 内容回顾**
```html
<div>
<br class="BR" style="">
Technical Specifications Belongs To Product FX5-8EYT-ES Display Details NA
Input Voltage Range 24 V DC Mounting Support DIN Rail Number of
Inputs & Outputs
Inputs 8 & Output Operating Temperature 0 °C To +55 °C Model FX5-8EYT-ES Output Relay, Transistor DIMENSION Depth 83mm Weight Width 90 mm
<p dir="ltr" class="xpath-helper-highlight" style="outline: red solid 2px;">
We have a large number of Refurbished Allen Bradley SERVO motor.I hope you need this too.
</p>
<p dir="ltr">MPL-B330P-SJ72AA<br>
MPL-B430P-SJ72AA<br>
MPL-B520K-SK74AA<br>
MPL-B540K-SJ72AA<br>
MPL-B540K-SK72AA<br>
MPL-B540K-SK74AA<br>
MPL-B640F-SJ72AA<br>
MPL-B680H-SJ72AA<br>
MPL-B860D-MJ72AA<br>
MPM-B1651F-MJ72AA<br>
MPL- A220T-HJ72AA<br>
VPL- B0633M-PK14AA
</p>
</div>
<div class="pll">
<br>
<p class="c26 b"><br>Additional
Information:</p>
<ul>
<li><b>Port of Dispatch: </b>Pondicherry</li>
</ul>
</div>
```
---
## ✅ **XPath 表达式解析**
### 1. `br[@class="BR"]`
- 只匹配第一个 `<br class="BR">`。
### 2. `/following::text()`
- 选取该节点之后的所有文本节点（在文档顺序中）。
- 包括：
- `<br class="BR">` 后面的纯文本（技术参数部分）
- `<p>` 标签内的文本
- 后续 `<div class="pll">` 中的所有文本节点（包括“Additional
Information:”、“Port of Dispatch: Pondicherry”）
---
## ✅ **匹配结果详解**
XPath 表达式会匹配以下文本节点（按顺序）：
1. `
Technical Specifications Belongs To Product FX5-8EYT-ES Display Details NA
Input Voltage Range 24 V DC Mounting Support DIN Rail Number of
Inputs & Outputs
Inputs 8 & Output Operating Temperature 0 °C To +55 °C Model FX5-8EYT-ES Output Relay, Transistor DIMENSION Depth 83mm Weight Width 90 mm`
2. `We have a large number of Refurbished Allen Bradley SERVO motor.I hope you need this too.`
3. `MPL-B330P-SJ72AA`
4. `MPL-B430P-SJ72AA`
5. `MPL-B520K-SK74AA`
6. `MPL-B540K-SJ72AA`
7. `MPL-B540K-SK72AA`
8. `MPL-B540K-SK74AA`
9. `MPL-B640F-SJ72AA`
10. `MPL-B680H-SJ72AA`
11. `MPL-B860D-MJ72AA`
12. `MPM-B1651F-MJ72AA`
13. `MPL- A220T-HJ72AA`
14. `VPL- B0633M-PK14AA`
15. `Additional
Information:`
16. `Port of Dispatch: `
17. `Pondicherry`
---
## ✅ **Python 示例代码（验证结果）**
```python
from lxml import html
html_content = '''
<div>
<br class="BR" style="">
Technical Specifications Belongs To Product FX5-8EYT-ES Display Details NA
Input Voltage Range 24 V DC Mounting Support DIN Rail Number of
Inputs & Outputs
Inputs 8 & Output Operating Temperature 0 °C To +55 °C Model FX5-8EYT-ES Output Relay, Transistor DIMENSION Depth 83mm Weight Width 90 mm
<p dir="ltr" class="xpath-helper-highlight" style="outline: red solid 2px;">
We have a large number of Refurbished Allen Bradley SERVO motor.I hope you need this too.
</p>
<p dir="ltr">MPL-B330P-SJ72AA<br>
MPL-B430P-SJ72AA<br>
MPL-B520K-SK74AA<br>
MPL-B540K-SJ72AA<br>
MPL-B540K-SK72AA<br>
MPL-B540K-SK74AA<br>
MPL-B640F-SJ72AA<br>
MPL-B680H-SJ72AA<br>
MPL-B860D-MJ72AA<br>
MPM-B1651F-MJ72AA<br>
MPL- A220T-HJ72AA<br>
VPL- B0633M-PK14AA
</p>
</div>
<div class="pll">
<br>
<p class="c26 b"><br>Additional
Information:</p>
<ul>
<li><b>Port of Dispatch: </b>Pondicherry</li>
</ul>
</div>
'''
tree = html.fromstring(html_content)
# 执行 XPath 表达式
results = tree.xpath("br[@class='BR']/following::text()")
# 清理并打印结果
for text in results:
print(repr(text.strip()))
```
---
## ✅ **输出结果（简化）**
```
'
Technical Specifications Belongs To Product FX5-8EYT-ES Display Details NA
Input Voltage Range 24 V DC Mounting Support DIN Rail Number of
Inputs & Outputs
Inputs 8 & Output Operating Temperature 0 °C To +55 °C Model FX5-8EYT-ES Output Relay, Transistor DIMENSION Depth 83mm Weight Width 90 mm'
'We have a large number of Refurbished Allen Bradley SERVO motor.I hope you need this too.'
'MPL-B330P-SJ72AA'
'MPL-B430P-SJ72AA'
'MPL-B520K-SK74AA'
'MPL-B540K-SJ72AA'
'MPL-B540K-SK72AA'
'MPL-B540K-SK74AA'
'MPL-B640F-SJ72AA'
'MPL-B680H-SJ72AA'
'MPL-B860D-MJ72AA'
'MPM-B1651F-MJ72AA'
'MPL- A220T-HJ72AA'
'VPL- B0633M-PK14AA'
'Additional
Information:'
'Port of Dispatch:'
'Pondicherry'
```
---
## ✅ **总结**
XPath 表达式 `br[@class="BR"]/following::text()` 会匹配：
- `<br class="BR">` 之后的所有文本节点（包括跨层级、跨标签）
- 不管这些文本节点属于哪个父节点，只要在文档顺序中位于该 `<br>` 之后，都会被匹配
---
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