title: Why Label Outlets cannot be connected to UITableViewCell Class
body: <p>I create a table view cell subclass and set it as the class of the prototype.I want to add the outlets to that class and connect them.</p>
  
  <p>But xcode do not respond.</p>
  
  <p>And i try to add the outlets of button in the next time,it works.</p>
  
  <p>I want to display a picture,it is pity that i don't have enough reputations.</p>
  
  <p>I don't understand why this happen.Can somebody help me,Plesae!!</p>