re = /该网站共有\s*<b[^>]*>([^<]*)<\/b>/
str = '该网站共有 <b style="color:#333">1,647</b></b>
个网页被百度收录 </span>
<a class="c-gap-left" href="http://www.baidu.com/link?url=VJVYQ4ICi27sRCzv-qcP6aqwAFaTejX2cxgqpybZ5hSywsOxqZlnjP29Y930JNV8EHBPc4O7XPBnOOsZTAJRCK" target="_blank">到站长平台分析收录量>></a>
</p>'
# Print the match result
str.scan(re) do |match|
puts match.to_s
end
Please keep in mind that these code samples are automatically generated and are not guaranteed to work. If you find any syntax errors, feel free to submit a bug report. For a full regex reference for Ruby, please visit: http://ruby-doc.org/core-2.2.0/Regexp.html