How to split a string and extract specific elements?
<p>I have a file, which consists of lines such as </p>

<pre><code>20 19:0.26 85:0.36 1064:0.236 # 750
</code></pre>

<p>I have been able to read it line by line and output it to the console. However, what I really need is to extract the elements like "19:0.26" "85:0.36" from each line, and perform certain operations on them. How to split the lines and get the elements that I want. </p>
