[英]How do I check whether comma separated elements of a string are in the list or not?
[英]How can I access the elements separated by comma in xml tags?
我需要將用逗號分隔的元素存儲在 xml 標簽中
例如,這些 x 和 y 坐標:
<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>
我嘗試過這樣的事情
x1, y1 = ((item.getElementsByTagName('points')[0]).getElementsByTagName('point')[0]).firstChild.data
但是出現以下錯誤
ValueError: too many values to unpack (expected 2)
對此的任何幫助將不勝感激。
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)
我最近致力於訪問 XML 標簽,我更喜歡xml.dom.minidom
的 xml.dom.minidom 庫用於此用途。
問題中上述 XML 標簽的代碼是:
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)
上述代碼的 output 用 x 和 y 坐標拆分,並按照您在問題中的要求存儲在一個數組中。 output 如下圖所示:
[['558.000000', '790.000000'], ['530.000000', '829.000000'], ['567.000000', '855.000000'], ['595.000000', '815.000000'], ['558.000000', '790.000000']]
希望對您有所幫助,如果這是您想要的,請告訴我。
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