对python修改xml文件的节点值方法详解-创新互联

这是我的xml文件结构

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<?xml version='1.0' encoding='utf-8'?>
<annotation>
 <folder>JPEGImages</folder>
 <filename>train_2018-05-08_1000.jpg</filename>
 <path>D:\all_data\2018-05-08\JPEGImages\train_2018-05-08_1000.jpg</path>
 <source>
 <database>Unknown</database>
 </source>
 <size>
 <width>4032</width>
 <height>3024</height>
 <depth>3</depth>
 </size>
 <segmented>0</segmented>
 <object>
 <name>yl-ylhzdhmbbz-gz-hm-280g</name>
 <pose>Unspecified</pose>
 <truncated>0</truncated>
 <difficult>0</difficult>
 <bndbox>
  <xmin>1863</xmin>
  <ymin>355</ymin>
  <xmax>2512</xmax>
  <ymax>902</ymax>
 </bndbox>
 </object>
 <object>
 <name>hy-hybfbgz-hz-xcw-200ml</name>
 <pose>Unspecified</pose>
 <truncated>0</truncated>
 <difficult>0</difficult>
 <bndbox>
  <xmin>1076</xmin>
  <ymin>1602</ymin>
  <xmax>1648</xmax>
  <ymax>2105</ymax>
 </bndbox>
 </object>
 <object>
 <name>ys-zzyspyz-gz-yw-245ml</name>
 <pose>Unspecified</pose>
 <truncated>1</truncated>
 <difficult>0</difficult>
 <bndbox>
  <xmin>2017</xmin>
  <ymin>2475</ymin>
  <xmax>2681</xmax>
  <ymax>3024</ymax>
 </bndbox>
 </object>
 <object>
 <name>mn-zgl-hz-cmw-250ml</name>
 <pose>Unspecified</pose>
 <truncated>0</truncated>
 <difficult>0</difficult>
 <bndbox>
  <xmin>1849</xmin>
  <ymin>1207</ymin>
  <xmax>2242</xmax>
  <ymax>2047</ymax>
 </bndbox>
 </object>
 <object>
 <name>qc-qckf-pz-shnt-268ml</name>
 <pose>Unspecified</pose>
 <truncated>0</truncated>
 <difficult>0</difficult>
 <bndbox>
  <xmin>480</xmin>
  <ymin>1213</ymin>
  <xmax>1308</xmax>
  <ymax>1544</ymax>
 </bndbox>
 </object>
 <object>
 <name>wt-wtcyl-gz-nm-310ml</name>
 <pose>Unspecified</pose>
 <truncated>0</truncated>
 <difficult>0</difficult>
 <bndbox>
  <xmin>867</xmin>
  <ymin>488</ymin>
  <xmax>1527</xmax>
  <ymax>938</ymax>
 </bndbox>
 </object>

</annotation>