Question

C#如何用正则表达式从一段字符串中取出时间

<td >
<span style="color:black"><span class="o displayNone">6</span><span class="o displayNone">6</span>11:05<span class="o displayNone">1</span><span class="o displayNone">1</span></span>
<span style="color:black"><span class="o displayNone">5</span><span class="o displayNone">4</span>15:10<span class="o displayNone">6</span><span class="o displayNone">3</span></span>
<a href="book_piao.php?id=49602920&data_source=1&film_index=28820110503151931" target="_blank"><span class="o displayNone">2</span><span class="o displayNone">3</span>17:35<span class="o displayNone">9</span><span class="o displayNone">:</span></a>
<a href="book_piao.php?id=49602921&data_source=1&film_index=28820110503151933" target="_blank"><span class="o displayNone">0</span>19:50<span class="o displayNone">1</span></a>
<a href="book_piao.php?id=49602922&data_source=1&film_index=28820110503151935" target="_blank"><span class="o displayNone">:</span><span class="o displayNone">1</span>22:05<span class="o displayNone">8</span><span class="o displayNone">3</span></a>
</td>

怎么能取出里边的所有时间

Answer 1

取出11：05这样的数据吗？正则：\d{1,2}:\d{1,2}
Regex reg = new Regex(@"\d{1,2}:\d{1,2}");
Match m = reg.Match(str);
while(m.Success){
Response.Write(m.Result("$0"));
m=m.NextMatch();
}

Answer 2

先找出每个时间 然后对他们进行替换 使用c#Regex的Replace,它可以使用自己的委托来规定替换的内容 在这其中写代码替换即可。 寻找你所说的字符串的正则表达式： [0-2][0-9]:[0-5][0-9]:[0-5][0-9]