我是正则表达式的初学者,所以我遇到了麻烦。
给定下面的字符串,我如何编写一个只匹配“69144”的正则表达式?只要我可以缩小范围,一些周围的文字也可以。
Citations</a></td><td class="cit-borderleft cit-data">69144</td><td class="cit-borderleft
cit data">22047</td></tr><tr class="cit-borderbottom"><td class="cit-caption"><a href="#"
class="cit-dark-link" onclick="return citToggleIndexDef('h_index_definition')" title='
h-index is the largest number h such that h publications have at least h citations.
The second column has the "recent" version of this metric which is the largest
number h such that h publications have at least h new citations in the last 5 years.
'>h-index</a></td><td class="cit-borderleft cit-data">88</td>
对于字符串非常难以阅读,我深表歉意。