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我需要将用逗号分隔的元素存储在 xml 标签中

例如，这些 x 和 y 坐标：

<points>
    <point>558.000000,790.000000</point>
    <point>530.000000,829.000000</point>
    <point>567.000000,855.000000</point>
    <point>595.000000,815.000000</point>
    <point>558.000000,790.000000</point>
</points>

我尝试过这样的事情

x1, y1 = ((item.getElementsByTagName('points')[0]).getElementsByTagName('point')[0]).firstChild.data

但是出现以下错误

ValueError: too many values to unpack (expected 2)

对此的任何帮助将不胜感激。

4

2 回答 2

0

你可以使用

import xml.etree.ElementTree as ET

data = """
<points>
    <point>558.000000,790.000000</point>
    <point>530.000000,829.000000</point>
    <point>567.000000,855.000000</point>
    <point>595.000000,815.000000</point>
    <point>558.000000,790.000000</point>
</points>
"""

tree = ET.fromstring(data)
for element in tree:
    x,y = element.text.split(",")
    print(x, y)
于 2020-07-14T09:17:49.233 回答
0

我最近致力于访问 XML 标记，我更喜欢xml.dom.minidompython 库用于此用途。

问题中上述 XML 标记的代码是：

import xml.dom.minidom as minidom

name = "<points><point>558.000000,790.000000</point><point>530.000000,829.000000</point><point>567.000000," \
       "855.000000</point><point>595.000000,815.000000</point><point>558.000000,790.000000</point></points> "
point = []
xml_loaded = minidom.parseString(name)
Points_Node = xml_loaded.getElementsByTagName("points")
for Main_Node in range(len(Points_Node)):
    Point_Child = Points_Node[Main_Node].getElementsByTagName("point")

for Child_Node in range(len(Point_Child)):
    point.append((Point_Child[Child_Node].firstChild.nodeValue).split(","))

print(point)

上述代码的输出用 x 和 y 坐标拆分，并按照您在问题中的要求存储在一个数组中。输出如下所示：

[['558.000000', '790.000000'], ['530.000000', '829.000000'], ['567.000000', '855.000000'], ['595.000000', '815.000000'], ['558.000000', '790.000000']]

希望对您有所帮助，如果这是您想要的，请告诉我。

于 2020-07-14T09:25:06.733 回答