title: How to select/read/copy values after specific character in a string
body: <p>I'm a beginner in this area, so I hope I could get some workaround to this</p>
  
  <p>How can I read or copy or select the values of number after specific character in a string?</p>
  
  <p>Let say I have a string:</p>
  
  <blockquote>
    <p>"ans=(any number submitted)"</p>
  </blockquote>
  
  <p>how can I select the (any number submitted) part only?</p>
  
  <p>Lets say the value submitted is 999.. thus the string would be "ans=999" .. how can I copy 999 in this case? I wanted to use the value later for atoi()</p>
  
  <p>thank you in advance. really appreciate some help here</p>