1.引入库需要用到3个类,ElementTree,Element以及建立子类的包装类SubElement from xml.etree.ElementTree import ElementTreefrom xml.etree.ElementTree import Elementfrom xml.etree.ElementTree import SubElement as SE 2.读入并解析tree = ElementTree(file=xmlfile)root = tree.getroot()读入后,tree是ElementTree的类型,获取xml根结点使用getroot()方法; XML