修改笔误

Author: caimaoy

第二章-构造器模式.md

@@ -360,7 +360,6 @@ class MargaritaBuilder:
         self.pizza = Pizza('margarita')
         self.progress = PizzaProgress.queued
         self.baking_time = 5      # in seconds for the sake of the
-        example
 
     def prepare_dough(self):
         self.progress = PizzaProgress.preparation
@@ -402,53 +401,53 @@ class CreamyBaconBuilder:
         self.pizza = Pizza('creamy bacon')
         self.progress = PizzaProgress.queued
         self.baking_time = 7      # in seconds for the sake of the
-        example
 
     def prepare_dough(self):
-           self.progress = PizzaProgress.preparation
-           self.pizza.prepare_dough(PizzaDough.thick)
+        self.progress = PizzaProgress.preparation
+        self.pizza.prepare_dough(PizzaDough.thick)
 
     def add_sauce(self):
-           print('adding the crème fraîche sauce to your creamy bacon')
-           self.pizza.sauce = PizzaSauce.creme_fraiche
-           time.sleep(STEP_DELAY)
-           print('done with the crème fraîche sauce')
+        print('adding the crème fraîche sauce to your creamy bacon')
+        self.pizza.sauce = PizzaSauce.creme_fraiche
+        time.sleep(STEP_DELAY)
+        print('done with the crème fraîche sauce')
 
     def add_topping(self):
-           print('adding the topping (mozzarella, bacon, ham, mushrooms, red onion, oregano) to your creamy bacon')
-           self.pizza.topping.append([t for t in
-           (PizzaTopping.mozzarella, PizzaTopping.bacon,
-           PizzaTopping.ham,PizzaTopping.mushrooms,
-           PizzaTopping.red_onion, PizzaTopping.oregano)])
-           time.sleep(STEP_DELAY)
-           print('done with the topping (mozzarella, bacon, ham, mushrooms, red onion, oregano)')
+        print('adding the topping (mozzarella, bacon, ham, mushrooms, red onion, oregano) to your creamy bacon')
+        self.pizza.topping.append([t for t in
+        (PizzaTopping.mozzarella, PizzaTopping.bacon,
+        PizzaTopping.ham,PizzaTopping.mushrooms,
+        PizzaTopping.red_onion, PizzaTopping.oregano)])
+        time.sleep(STEP_DELAY)
+        print('done with the topping (mozzarella, bacon, ham, mushrooms, red onion, oregano)')
 
     def bake(self):
-           self.progress = PizzaProgress.baking
-           print('baking your creamy bacon for {} seconds'.format(self.baking_time))
-           time.sleep(self.baking_time)
-           self.progress = PizzaProgress.ready
-           print('your creamy bacon is ready')
+        self.progress = PizzaProgress.baking
+        print('baking your creamy bacon for {} seconds'.format(self.baking_time))
+        time.sleep(self.baking_time)
+        self.progress = PizzaProgress.ready
+        print('your creamy bacon is ready')
 
 
-  class Waiter:
-       def __init__(self):
-           self.builder = None
-       def construct_pizza(self, builder):
-           self.builder = builder
-           [step() for step in (builder.prepare_dough,
-           builder.add_sauce, builder.add_topping, builder.bake)]
-       @property
-       def pizza(self):
-           return self.builder.pizza
-           
-        def validate_style(builders):
-    try:
-        pizza_style = input('What pizza would you like, [m]argarita or [c]reamy bacon? ')uilder = builders[pizza_style]() valid_input = True
-       except KeyError as err:
-           print('Sorry, only margarita (key m) and creamy bacon (key c) are available')
-           return (False, None)
-       return (True, builder)
+class Waiter:
+    def __init__(self):
+        self.builder = None
+    def construct_pizza(self, builder):
+        self.builder = builder
+        [step() for step in (builder.prepare_dough,
+        builder.add_sauce, builder.add_topping, builder.bake)]
+    @property
+    def pizza(self):
+        return self.builder.pizza
+    def validate_style(builders):
+        try:
+            pizza_style = input('What pizza would you like,[m]argarita or [c]reamy bacon? ')
+            builder = builders[pizza_style]()
+            valid_input = True
+        except KeyError as err:
+            print('Sorry, only margarita (key m) and creamy bacon (key c) are available')
+            return (False, None)
+        return (True, builder)
 
 
 def main():