title: How to get a bit value of byte
body: <p>When I tried to convert byte to bits using <code>var bits = Convert.ToString(tmp, 2);</code>
  <code>tmp</code> is a byte values 33 for example. Now the <code>bits</code> is string '100001', how should I get every single bit value of <code>bits</code>? For example <code>if(bits[0] == 1) ...do something</code></p>