Python一次循环访问两个元素 [英] Python for loop access two elements at a time
问题描述
value + 我在字典的值部分添加了一个名称和一个项目的属性值: = child.get('name')+'\ t'+ child.text +'\ t'
每个文本都由一个制表符分隔。所以,当我稍后处理这个值的字符串,我分裂在选项卡上,并有一个for循环遍历列表。
如何访问名称和值在for循环中。至于每个属性,我想一次性获取名称和值,并将其写入文件。目前这个列表看起来像:
[a,b,a,b,a,b,a,b]
'<'tag name = a'>'b'<'/ tag'>'
您可以遍历步长为2的列表,并获取每个迭代的名称和标记...
对于范围(0,len(list1),2):
name = list1 [i]
tag = list1 [i + 1]
print'< tag name =%s>%s< / tag>'%(name,tag)
I'm adding into the value section of a dictionary a name and the value of properties of an item:
value+=child.get('name') + '\t' + child.text + '\t'
Each piece of text is separated by a tab. So then when I process this value string later, I split on the tabs and have a for loop to iterate over the list.
How can I access both the name and value in the for loop. As for each property I want to get the name and value in one go and write it to a file. Currently the list looks like:
[a,b,a,b,a,b,a,b]
and for each a,b I want to write:
'<' tag name=a '>' b '<' /tag '>'
You can iterate over the list with step size 2, and get the name and tag each over each iteration...
for i in range(0,len(list1),2):
name = list1[i]
tag = list1[i+1]
print '<tag name="%s">%s</tag>' % (name, tag)
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