title: iphone @selector has two argument
body: <p>I have a method like this:</p>
  
  <pre><code>-(void)A:(int)a B:(int)b{    
  }
  </code></pre>
  
  <p>and want to put the method into a new thread:</p>
  
  <pre><code>NSInvocationOperation *theOp = [[NSInvocationOperation alloc]initWithTarget:self selector:@selector(A:B:) object:nil];
  </code></pre>
  
  <p>but "EXC_BAD_ACCESS".</p>