scrapy xpath 问题

yangjiaronga · 2017-02-06T16:03:58Z

Copper, Cu **response.xpath('/tr').extract() 只能获取到** Copper, Cu 消失不见，为什么呢？

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<tr>
<td style="vertical-align:top;">Copper, Cu </td>
<td class="dataCell" style="vertical-align:top;"><= 0.03 %</td>
<td class="dataCell" style="vertical-align:top;"><= 0.03 %</td>
<td class="dataComment" style="vertical-align:top;"></td>
</tr>

**response.xpath('/tr').extract()
只能获取到**

<tr>
<td style="vertical-align:top;">Copper, Cu </td>
<td class="dataCell" style="vertical-align:top;"></td>
<td class="dataCell" style="vertical-align:top;"></td>
<td class="dataComment" style="vertical-align:top;"></td>
</tr>

<= 0.03 % 和 消失不见，为什么呢？

1 replies

leavic

Feb 7, 2017 via iPhone

确定你看的网页源码是关闭了 javascript 状态下的