title: What is the meaning of the #define in the objective C?
body: <p>I want to ask a question about the objective-C or may be the <strong>C</strong> language. I want to ask what is the meaning of the following code of <code>#define</code>? Is it like to declare a variable? </p>
  
  <pre><code>#define kMountainNameString         @"name"
  #define kMountainHeightString           @"height"
  #define kMountainClimbedDateString      @"climbedDate"
  </code></pre>