F# confusing output -

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I'm starting an F # I have gone this code: 

  let printMsg () = Msg msg = "Important" printfn "% s" msg msg innMsgChange () = msg msg = "very important" printfn "% s" msg printfn "% s" msginMsgChange () printfn "% s" msg print message ( )   
 I expected that the text sequence would be in this sequence:  
 
 important, very important, important, important    or  
 
 Important, very important, very important, important   
 but I found this  
 
 important, important, very important, important   
 It seems that this code of execution order Do not follow. Why is it, I'm missing something?   
 
 
 Firstly, tell  change internal messages  Promises: It creates a new variable called  msg  (which is completely unrelated to the external variable which is also called  msg  value) "very important "And then prints it, in short this string is printed" very important "and that's it.  
 In which order is the code executed?  
  •  This variable has been printed.  
  •    msg  
  •  variable  msg      < / Li>  
  •   is printed again  
  •  
      InMark's Change ()  to  
     said Goes 5.1. Inner Variable  msg  is set to "very important" Let's look at it to distract  innerMsg .  
     5.2.  innerMsg  has been printed.   
  •  
      msg  (which is still the "important" value because it is completely      

     




  
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