原来的方式是从根节点，一般是html开始逐一向下进行元素定位，这种方式唯一缺点在于整个xpath语句会很长，比如： /html/body ...
Will Kenton is an expert on the economy and investing laws and regulations. He previously held senior editorial roles at Investopedia and Kapitall Wire and holds a MA in Economics from The New School ...
Investopedia contributors come from a range of backgrounds, and over 25 years there have been thousands of expert writers and editors who have contributed. Eric's career includes extensive work in ...
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