selenium 进阶1： CSS SELECTOR
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selenium 不如JQUERY对CSS支持的那么好一直是我心中的痛。
比如：找到页面中，找到一组 <a>, 然后再找到[2].parent()这个dom, jQuery得心应手，selenium 之前则只能借助于晦涩难懂的 xpath. >_<
而 selenium 大牛们都是推荐 CSS selector的。所以。。。我找了一下解决方案，发现selenium 虽然使用了sizzle (https://github.com/jquery/sizzle/wiki/Sizzle-Home) ，但是对某些selector还是不支持的，下面就是“不支持”的列表：
根据这个文章，
http://marakana.com/bookshelf/selenium_tutorial/locators.html
6.7. CSS
The CSS locator strategy uses CSS selectors to find the elements in the page. Selenium supports CSS 1 through 3 selectors syntax excepted CSS3 namespaces and the following:
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css=div[id="pancakes"] > button[value="Blueberry"]selects the button with its value property set at Blueberry if children of the pancakes div
PROS :
- Much faster than XPath
- Widely used
- Provides a good balance between structure and attributes
- Allows for selection of elements by their surrounding context
CONS :
- They tend to be more complex and require a steeper learning curve