python编程快速上手之第5章实践项目参考答案

 1 #!/usr/bin/env python3.5
  2 # coding:utf-8
  3 # 5.6.1
  4 # 好玩游戏的物品清单
  5 # 给定一个字典，包含物品名称和数量，并打印出数量对应的物品
  6
  7 dict_stuff = {‘rope‘:1,‘torch‘:6,‘gold coin‘:42,‘dagger‘:1,‘arrow‘:12}
  8 print("5.6.1参考答案")
  9 print(‘=‘ * 80)
 10 print("给定字典：",dict_stuff)
 11 print("运行结果：")
 12 def displayInventory(inventory):
 13     print("Inventory:")
 14     item_total = 0
 15     for k,v in inventory.items():
 16         print(str(v) + ‘\t‘ + k)
 17         item_total += v
 18     print("Total number of items:" + str(item_total))
 19 displayInventory(dict_stuff)
 20 print(‘=‘ * 80)
 21 print()
 22 # 5.6.2
 23 dragonLoot = [‘gold coin‘,‘dagger‘,‘gold coin‘,‘gold coin‘,‘ruby‘]
 24 print("5.6.2参考答案")
 25 print(‘=‘ * 80)
 26 inv = {‘gold coin‘:42,‘rope‘:1}
 27 print("给定列表：",dragonLoot)
 28 print("给定字典：",inv)
 29 print("运行结果：")
 30 def addToInventory(inventory,addedItems):
 31     for item in dragonLoot:
 32         if item not in inventory.keys():
 33             inventory.setdefault(item,addedItems.count(item))
 34         else:
 35             inventory[item] += 1
 36     return inventory
 37 inv = addToInventory(inv,dragonLoot)
 38 print(inv)
 39 displayInventory(inv)
 40 print(‘=‘ * 80)