Question

如何在c#里通过正则表达式把网页内容提取出来？

比如http://stockdata.stock.hexun.com/2009_zxcwzb_002024.shtml这个网页，需要把其中的财务数据按季度提取出来，存入数据库中。急盼各位大神施以援手！
比如http://stockdata.stock.hexun.com/002024.shtml这个网页是这么采集的，能不能用类似方法采集，麻烦给出代码
Match ProfitEachMatch = Regex.Match(IntegratedStaticHtmlString, "每股收益\\(元\\)</td><td class='tb2_new'>(?<ProfitEach>[-]?\\d+\\W\\d+)</td>", RegexOptions.IgnoreCase);
Match IPOTimeMatch = Regex.Match(IntegratedStaticHtmlString, "上市时间</td><td class='tb2_new'>(?<IPOTime>\\d{4}-\\d{2}-\\d{2})</td>", RegexOptions.IgnoreCase);
Match NetWorthEachMatch = Regex.Match(IntegratedStaticHtmlString, "每股净资产\\(元\\)</td><td class='tb2_new'>(?<NetWorthEach>[-]?\\d+\\W\\d+)</td>", RegexOptions.IgnoreCase);

Answer 1

<div>最新财务指标</div>
<table width="100%" border="0" cellspacing="0" cellpadding="0" class="web2">
<span id="ControlEx1_lbl"><tr><td class='dotborder' width='35%'><div class='tishi'><strong>会计年度</strong></div></td><td class='dotborder'><div class='tishi'>2010-03-15</div></td><td class='dotborder'><div class='tishi'>2009-12-31</div></td><td><div class='tishi'>2009-09-30</div></td></tr><tr><td class='dotborder' width='35%'><div class='tishi'><strong>营业收入</strong></div></td><td class='dotborder'><div class='tishi'>16,711,983,000.00</div></td><td class='dotborder'><div class='tishi'>58,300,149,000.00</div></td><td><div class='tishi'>41,573,938,000.00</div></td></tr><tr><td class='dotborder' width='35%'><div class='tishi'><strong>净利润（元)</strong></div></td><td class='dotborder'><div class='tishi'>883,809,000.00</div></td><td class='dotborder'><div class='tishi'>2,889,956,000.00</div></td><td><div class='tishi'>1,969,508,000.00</div></td></tr><tr><td class='dotborder' width='35%'><div class='tishi'><strong>利润总额（元)</strong></div></td><td class='dotborder'><div class='tishi'>1,194,506,000.00</div></td><td class='dotborder'><div class='tishi'>3,926,367,000.00</div></td><td><div class='tishi'>2,666,614,000.00</div></td></tr><tr><td class='dotborder' width='35%'><div class='tishi'><strong>扣除非经常性损益后的净利润（元)</strong></div></td><td class='dotborder'><div class='tishi'>--</div></td><td class='dotborder'><div class='tishi'>2,852,724,000.00</div></td><td><div class='tishi'>--</div></td></tr><tr><td class='dotborder' width='35%'><div class='tishi'><strong>总资产（元)</strong></div></td><td class='dotborder'><div class='tishi'>36,803,812,000.00</div></td><td class='dotborder'><div class='tishi'>35,839,832,000.00</div></td><td><div class='tishi'>32,383,657,000.00</div></td></tr><tr><td class='dotborder' width='35%'><div class='tishi'><strong>股东权益（元)</strong></div></td><td class='dotborder'><div class='tishi'>15,420,979,000.00</div></td><td class='dotborder'><div class='tishi'>14,540,346,000.00</div></td><td><div class='tishi'>10,655,729,000.00</div></td></tr><tr><td class='dotborder' width='35%'><div class='tishi'><strong>经营活动产生的现金流量净额（元)</strong></div></td><td class='dotborder'><div class='tishi'>--</div></td><td class='dotborder'><div class='tishi'>--</div></td><td><div class='tishi'>4,625,304,000.00</div></td></tr><tr><td class='dotborder' width='35%'><div class='tishi'><strong>每股收益（摊薄)</strong></div></td><td class='dotborder'><div class='tishi'>0.13</div></td><td class='dotborder'><div class='tishi'>0.64</div></td><td><div class='tishi'>0.44</div></td></tr><tr><td class='dotborder' width='35%'><div class='tishi'><strong>净资产收益率（摊薄)(%)</strong></div></td><td class='dotborder'><div class='tishi'>5.73</div></td><td class='dotborder'><div class='tishi'>19.88</div></td><td><div class='tishi'>18.48</div></td></tr><tr><td class='dotborder' width='35%'><div class='tishi'><strong>每股经营活动产生的现金流量净额（元)</strong></div></td><td class='dotborder'><div class='tishi'>-0.12</div></td><td class='dotborder'><div class='tishi'>1.19</div></td><td><div class='tishi'>1.03</div></td></tr><tr><td class='dotborder' width='35%'><div class='tishi'><strong>每股净资产（元)</strong></div></td><td class='dotborder'><div class='tishi'>3.31</div></td><td class='dotborder'><div class='tishi'>3.12</div></td><td><div class='tishi'>2.38</div></td></tr><tr><td class='dotborder' width='35%'><div class='tishi'><strong>调整后每股净资产（元)</strong></div></td><td class='dotborder'><div class='tishi'>--</div></td><td class='dotborder'><div class='tishi'>--</div></td><td><div class='tishi'>--</div></td></tr><tr><td class='dotborder' width='35%'><div class='tishi'><strong>境外会计准则净利润（元)</strong></div></td><td class='dotborder'><div class='tishi'>--</div></td><td class='dotborder'><div class='tishi'>--</div></td><td><div class='tishi'>--</div></td></tr><tr><td class='dotborder' width='35%'><div class='tishi'><strong>扣除非经常性损益后的每股收益(元)</strong></div></td><td class='dotborder'><div class='tishi'>--</div></td><td class='dotborder'><div class='tishi'>0.64</div></td><td><div class='tishi'>--</div></td></tr><tr><td class='dotborder' width='35%'><div class='tishi'><strong>报告起始时间</strong></div></td><td class='dotborder'><div class='tishi'>2010-01-01</div></td><td class='dotborder'><div class='tishi'>2009-01-01</div></td><td><div class='tishi'>2009-01-01</div></td></tr><tr><td class='dotborder' width='35%'><div class='tishi'><strong>报告终止时间</strong></div></td><td class='dotborder'><div class='tishi'>2010-03-31</div></td><td class='dotborder'><div class='tishi'>2009-12-31</div></td><td><div class='tishi'>2009-09-30</div></td></tr></span>
</table>

你注意观察一下，以上这段是数据。
用正则表达式我感觉不是很好弄，但用程序应该能处理的差不多。。
1，得到这个页面的html
2，找到有用信息的开头“最新财务指标”
3，下面是一个table 取<table 作为药截取字符串的开头 </table>为末尾
4、如果仅为了显示信息，那么直接保存到数据库里就可以了
5，如果要把每条数据都拿出来，就稍微麻烦了，按照td tr 逐一截取字符串，然后用替换的方式删除html代码剩下的就是数据本身了

Answer 2

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