Grinding Dancing With A Belt

012) 's return statement

need to return back to caller with return values, as we look at the example returns a value:

 
  final   age  ()   :  
  et  =   input   ( how old are you?: )   
  return     et # et and then returns the value of your age 
 # ' 
  print   age   () # print    a video la funzione eta   
                     #se eta non ha valore stampa None   

Che succede?? print eta() stampa a video la funzione con la variabile di ritorno richiamata da return facciamo un altro esempio:

  
   def     eta    (    x    ,    y    )    :   
      risu     =     x    +    y   
      return     risu   
   print     eta    (    2    ,    4  )  

This example is better understood by changing the parameters of the print age (2.4) function is called and prints to video the value of the variable would return ECJ risu the result of an operation mathematics. the interesting thing is that we can assign to a variable in the entire opearzione a function like this:

 
  final   age   (    x, y    )  :  
  risu   =     x + y    
  return   risu  
  to   =   age   (2    ,     4)   # to become the return value  
  print   "  twice the function and operation '  "  to   +   to  

All this is possible thanks to the return value. In print "function and the dual operation, '" a + a print to video the first string and then the sum of the return value for himself.