问个关于 xpath 的问题 - V2EX
stupidcat

问个关于 xpath 的问题

  •  
  •   stupidcat Jan 15, 2015 2885 views
    This topic created in 4151 days ago, the information mentioned may be changed or developed.

    现有一段xml:

    <span> <a class="copy">复制</a> <a class="download 100" href="www.xxxxx.com/xxxxx">下载</a> <a ....>XXX</a> <a ....>YYY</a> </span> 

    我想从中取出“下载”的那个<a>元素。

    通过使用contains函数,下面的这个xpath是奏效的:
    //span/a[contains(@class, "dowload")]

    但是我现在想通过匹配那两个汉字“下载”来取出那个<a>,应该怎么写xpath?
    下面这个xpath取出的是<span>,但我想取出那个<a>啊……
    //span[contains(a, "下载")]

    6 replies    2015-01-15 16:10:08 +08:00
    hcymk2
        1
    hcymk2  
       Jan 15, 2015   1
    //span[a=下载']/a
    hcymk2
        2
    hcymk2  
       Jan 15, 2015   1
    ...
    少了个引号
    //span[a='下载']/a
    imn1
        3
    imn1  
       Jan 15, 2015   2
    //a[text()='下载']
    //a[contains(text(), "下载")]

    建议你 google 搜索 'xpath css cheatsheet',会找到两份 pdf,自己留下,很有用的
    信得过(不是说我,是这个链接)的就点 http://bit.ly/gTd5oc ,就是这两份
    stupidcat
        4
    stupidcat  
    OP
       Jan 15, 2015   1
    @hcymk2 我测试了一下,这样返回的是所有的<a>啊……
    你看,首先找到子元素有“包含了‘下载’的a”的span,然后找到这个span的a,那么不就返回这个span下面所有的a了。。。?
    stupidcat
        5
    stupidcat  
    OP
       Jan 15, 2015   1
    @imn1 很有用,已经下载了,谢谢~~
    hcymk2
        6
    hcymk2  
       Jan 15, 2015   1
    @stupidcat
    我弄错了。。 应该用//span/a[text()='下载']
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