title: find and replace special characters powershell
body: <p>I have a method that has an if statement that catches if it finds a special character. What I want to do now if find the position of the special characters and replace it with _A</p>
  
  <p>Some Examples</p>
  
  <ul>
  <li><p>test# <strong>becomes</strong> test_A</p></li>
  <li><p>I#hope#someone#knows#the#answer# <strong>becomes</strong> I_Ahope_Asomeone_Aknows_Athe_Aanswer_A</p></li>
  </ul>
  
  <p>or if it has more than one special character</p>
  
  <ul>
  <li>You?didnt#understand{my?Question# <strong>becomes</strong> You_Adidnt_Aunderstand_Amy_AQuestion_A </li>
  </ul>
  
  <p>Would I have to loop through the whole string and when I reach that character change it to _A or is there a quicker way of doing this?</p>