用xml.dom.minidom读取处理xml标签文件

from xml.dom.minidom import parse
import os 

文件路径

xmlname=r"201603120058450610-8587440075781728764-2.xml"
xmlname=r"201704051510530998-8587102386237784086-6.xml"
filepath=r"C:\Users\bxzyz\Desktop\doc\ocr\data\OCR-caiji"
xmlname=os.path.join(filepath,xmlname)
dom=parse(xmlname)
print(dom.toxml())

xml文件输出如下

<?xml version="1.0" ?><annotation>
    <folder>OCV - 3</folder>
    <filename>201704051510530998-8587102386237784086-6.bmp</filename>
    <path>D:\ocv收集\OCV - 3\201704051510530998-8587102386237784086-6.bmp</path>
    <source>
        <database>Unknown</database>
    </source>
    <size>
        <width>0</width>
        <height>0</height>
        <depth>3</depth>
    </size>
    <segmented>0</segmented>
    <object>
        <name>R68</name>
        <pose>Unspecified</pose>
        <truncated>0</truncated>
        <difficult>0</difficult>
        <bndbox>
            <xmin>95</xmin>
            <ymin>50</ymin>
            <xmax>239</xmax>
            <ymax>133</ymax>
        </bndbox>
    </object>
    <object>
        <name>704</name>
        <pose>Unspecified</pose>
        <truncated>0</truncated>
        <difficult>0</difficult>
        <bndbox>
            <xmin>95</xmin>
            <ymin>133</ymin>
            <xmax>235</xmax>
            <ymax>225</ymax>
        </bndbox>
    </object>
    <object>
        <name>003</name>
        <pose>Unspecified</pose>
        <truncated>0</truncated>
        <difficult>0</difficult>
        <bndbox>
            <xmin>101</xmin>
            <ymin>228</ymin>
            <xmax>250</xmax>
            <ymax>333</ymax>
        </bndbox>
    </object>
</annotation>

读取xml中所有object节点

objs=dom.getElementsByTagName("object")
print(len(objs))

3

# objs = eldoc.getElementsByTagName( "object" ) 
for obj in objs:
    name=obj.getElementsByTagName("name")[0]
    print(name.nodeName+":"+name.childNodes[0].nodeValue)
    
    xmin=obj.getElementsByTagName("xmin")[0]
    print(xmin.nodeName+":"+xmin.childNodes[0].nodeValue)
    
    xmax=obj.getElementsByTagName("xmax")[0]
    print(xmax.nodeName+":"+xmax.childNodes[0].nodeValue)
    
    ymin=obj.getElementsByTagName("ymin")[0]
    print(ymin.nodeName+":"+ymin.childNodes[0].nodeValue)
    
    ymax=obj.getElementsByTagName("ymax")[0]
    print(ymax.nodeName+":"+ymax.childNodes[0].nodeValue)
    
    print()
    

name:R68
xmin:95
xmax:239
ymin:50
ymax:133

name:704
xmin:95
xmax:235
ymin:133
ymax:225

name:003
xmin:101
xmax:250
ymin:228
ymax:333