Easy to master the strategy pattern of Python design patterns _python

Examples of this article for you to share the Python strategy model code for your reference, the specific contents are as follows

""
Policy Mode ""
Import Types

class Strategyexample:
 def __init__ (self, func=none):
  self.name = ' Policy example 0 '
  if Func is not None: ' ""
   for instance-bound methods, does not affect other instances "" "
   Self.execute = types. Methodtype (func, self)

 def execute (self):
  print (self.name)

def execute_replacement1 (self):
 Print (Self.name + ' from execution 1 ')


def Execute_replacement2 (self):
 print (Self.name + ' from Execution 2 ')


if __name__ = = ' __ Main__ ':
 strat0 = strategyexample ()

 strat1 = Strategyexample (execute_replacement1)
 strat1.name = ' Policy Example 1 '

 strat2 = strategyexample (execute_replacement2)
 strat2.name = ' Policy Example 2 '

 strat0.execute ()
 Strat1.execute ()
 Strat2.execute ()

Run the results as shown in figure:

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