title: Does Xcode clear .app directory every time we run it?
body: <p>I create a property list file in Xcode project,and write something to it, such as name and password. I use this method</p>
  
  <pre><code>NSLog(@"%d",[_account writeToFile:path atomically:YES]);
  </code></pre>
  
  <p>and it does return 1</p>
  
  <pre><code>2014-09-03 11:16:53.576 14-09-02-LoginAndRegister[2049:60b] 1
  </code></pre>
  
  <p>but next time I run in Xcode, all the data is gone. Then I try in simulator, I exit the app, then launch it, the data is still there. So I guess that the Xcode will clear the .APP directory. So how can I store data.</p>
  
  <p>PS:I know how to use SQLite, but I want to use plist here</p>