我有以下字符串：
"<a href=\"/formentries/formfile/13978\" target=\"_blank\">dog-00.jpg|image/jpeg</a> <a href='/FormEntries/Delete' class='btnDeleteAttachment' data-form-entry-id='366793' data-attachment-id='13978'> [remove]</a><br /><a href=\"/formentries/formfile/13979\" target=\"_blank\">dog-01.docx|application/vnd.openxmlformats-officedocument.wordprocessingml.document</a> <a href='/FormEntries/Delete' class='btnDeleteAttachment' data-form-entry-id='366793' data-attachment-id='13979'> [remove]</a><br /><a href=\"/formentries/formfile/13980\" target=\"_blank\">dog-02.png|image/png</a> <a href='/FormEntries/Delete' class='btnDeleteAttachment' data-form-entry-id='366793' data-attachment-id='13980'> [remove]</a>"
如果你要很好地格式化，你会看到这样的东西：
<a href=\"/formentries/formfile/13978\" target=\"_blank\">dog-00.jpg|image/jpeg</a>
<a href='/FormEntries/Delete' class='btnDeleteAttachment' data-form-entry-id='366793' data-attachment-id='13978'> [remove]</a>
<br />
<a href=\"/formentries/formfile/13979\" target=\"_blank\">dog-01.docx|application/vnd.openxmlformats-officedocument.wordprocessingml.document</a>
<a href='/FormEntries/Delete' class='btnDeleteAttachment' data-form-entry-id='366793' data-attachment-id='13979'> [remove]</a>
<br />
<a href=\"/formentries/formfile/13980\" target=\"_blank\">dog-02.png|image/png</a>
<a href='/FormEntries/Delete' class='btnDeleteAttachment' data-form-entry-id='366793' data-attachment-id='13980'> [remove]</a>
所以我有一堆锚标签，它们之间有断点。在每个锚的文本中，我想删除管道字符和文件类型：
狗00.jpg |图像/ JPEG
变
狗00.jpg
正则表达式也适用于所有未来的文件类型，例如：
狗01.docx |应用程序/ vnd.openxmlformats-officedocument.wordprocessingml.document
变
狗01.docx
我仍然需要完整的锚点，因此在删除文件类型后，文本变为：
<a href=\"/formentries/formfile/13978\" target=\"_blank\">dog-00.jpg</a>
<a href='/FormEntries/Delete' class='btnDeleteAttachment' data-form-entry-id='366793' data-attachment-id='13978'> [remove]</a>
<br />
<a href=\"/formentries/formfile/13979\" target=\"_blank\">dog-01.docx</a>
<a href='/FormEntries/Delete' class='btnDeleteAttachment' data-form-entry-id='366793' data-attachment-id='13979'> [remove]</a>
<br />
我不是很擅长正则表达，但我尝试了各种组合都无法匹配