我正在尝试为LPTHW做额外的信用分配，我想我可能正在尝试一些我不知道该功能的真正目的的东西。我试图测试购买东西，特别是在我的代码中，如果用户购买了一个项目，它会从当前项目列表中弹出该项目，并将其替换为新项目。当我测试购买功能时，我得到了一个索引错误。关于如何使这项工作正确的任何想法？
def buy_weapon(weapons):
"""big bit of code that allows you to buy a weapons from a weapon list.
The function acts a little differently after level zero weapons"""
global current_weapon
if weapons == level_zero_weapons:
sword_price = level_zero_price()
blunt_price = level_zero_price()
agile_price = level_zero_price()
print t.bright_yellow_on_magenta + """
Please type in the weapon you want to buy.
%s, price: %d gold pieces
%s, price: %d gold pieces
%s, price: %d gold pieces.
""" % (weapons[0], sword_price, weapons[1], blunt_price,weapons[2],
agile_price)
weapon_choice = raw_input(":> ")
if "sword" in weapon_choice:
current_weapon = weapons[0]
inventory(weapons[0])
character_sheet.append(current_weapon)
elif weapons[1] in weapon_choice:
current_weapon = weapons[1]
inventory(weapons[1])
character_sheet.append(current_weapon)
elif weapons[2] in weapon_choice:
current_weapon = weapons[2]
inventory(weapons[2])
character_sheet.append(current_weapon)
else:
print "I dont know what %s means" % weapon_choice
buy_weapon(level_zero_weapons)
elif weapons == level_one_weapons:
sword_price = level_one_price()
blunt_price = level_one_price()
agile_price = level_one_price()
print"""
Type in the weapon you want to buy, type quit to return to the barracks.
%s, price: %d gold pieces
%s, price: %d gold pieces
%s, price: %d gold pieces.
""" % (weapons[0], sword_price, weapons[1], blunt_price, weapons[2],
agile_price)
weapon_choice = raw_input(":> ")
if weapons[0] in weapon_choice:
character_sheet.pop(current_weapon)
current_weapon = weapons[0]
inventory(weapons[0])
character_sheet.append(current_weapon)
elif weapons[1] in weapon_choice:
character_sheet.pop(current_weapon)
current_weapon = weapons[1]
inventory(weapons[1])
character_sheet.append(current_weapon)
elif weapons[2] in weapon_choice:
character_sheet.pop(current_weapon)
current_weapon = weapons[2]
inventory(weapons[2])
character_sheet.append(current_weapon)
else:
print "I dont know what %s means" % weapon_choice
buy_weapon(level_one_weapons)
elif weapons == level_two_weapons:
sword_price = level_two_price()
blunt_price = level_two_price()
agile_price = level_two_price()
print"""
Type in the weapon you want to buy, type quit to return to the barracks.
%s, price: %d gold pieces
%s, price: %d gold pieces
%s, price: %d gold pieces.
""" % (weapons[0], sword_price, weapons[1], blunt_price,weapons[2],
agile_price)
weapon_choice = raw_input(":> ")
if weapons[0] in weapon_choice:
character_sheet.pop(current_weapon)
current_weapon = weapons[0]
inventory(weapons[0])
character_sheet.append(current_weapon)
elif weapons[1] in weapon_choice:
character_sheet.pop(current_weapon)
current_weapon = weapons[1]
inventory(weapons[1])
character_sheet.append(current_weapon)
elif weapons[2] in weapon_choice:
character_sheet.pop(current_weapon)
current_weapon = weapons[2]
inventory(weapons[2])
character_sheet.append(current_weapon)
else:
print "I dont know what %s means" % weapon_choice
buy_weapon(level_two_weapons)
elif weapons == level_three_weapons:
sword_price = level_three_price()
blunt_price = level_three_price()
agile_price = level_three_price()
print"""
Type in the weapon you want to buy, type quit to return to the barracks.
%s, price: %d gold pieces
%s, price: %d gold pieces
%s, price: %d gold pieces.
""" % (weapons[0], sword_price, weapons[1], blunt_price,weapons[2],
agile_price)
weapon_choice = raw_input(":> ")
if weapons[0] in weapon_choice:
character_sheet.pop(current_weapon)
current_weapon = weapons[0]
inventory(weapons[0])
character_sheet.append(current_weapon)
elif weapons[1] in weapon_choice:
character_sheet.pop(current_weapon)
current_weapon = weapons[1]
inventory(weapons[1])
character_sheet.append(current_weapon)
elif weapons[2] in weapon_choice:
character_sheet.pop(current_weapon)
current_weapon = weapons[2]
inventory(weapons[2])
character_sheet.append(current_weapon)
else:
print "I dont know what %s means" % weapon_choice
buy_weapon(level_three_weapons)
elif weapons == level_four_weapons:
sword_price = level_four_price()
blunt_price = level_four_price()
agile_price = level_four_price()
print"""
Type in the weapon you want to buy, type quit to return to the barracks.
%s, price: %d gold pieces
%s, price: %d gold pieces
%s, price: %d gold pieces.
""" % (weapons[0], sword_price, weapons[1], blunt_price,weapons[2],
agile_price)
weapon_choice = raw_input(":> ")
if weapons[0] in weapon_choice:
character_sheet.pop(current_weapon)
current_weapon = weapons[0]
inventory(weapons[0])
character_sheet.append(current_weapon)
elif weapons[1] in weapon_choice:
character_sheet.pop(current_weapon)
current_weapon = weapons[1]
inventory(weapons[1])
character_sheet.append(current_weapon)
elif weapons[2] in weapon_choice:
character_sheet.pop(current_weapon)
current_weapon = weapons[2]
inventory(weapons[2])
character_sheet.append(current_weapon)
else:
print "I dont know what %s means" % weapon_choice
buy_weapon(level_four_weapons)
else:
print"~~~There is a bug somwhere, forgot to assign (weapons)\n\n\n"
raw_input(t.white_on_red("""
Your current weapon is now a %s. Press Enter To Continue
""" % current_weapon))
# Weapon lists
level_zero_weapons = ['short sword', 'club', 'dagger']
level_one_weapons = ['sword' 'mace', 'rapier']
level_two_weapons = ['long sword', 'morningstar', 'trident']
level_three_weapons = ['claymore', 'flail', 'sycthe']
level_four_weapons = ['bastard sword, dragon bone, crystal halbred']
这是我尝试运行该文件的地方。
pp.pprint(character_sheet)
raw_input(t.white_on_red("Please Press Enter To Buy A Weapon"))
buy_weapon(level_zero_weapons)
buy_weapon(level_one_weapons)
pp = pprint.PrettyPrinter(indent=30)
pp.pprint(character_sheet)
最后这是我的输出。
Your current weapon is now a dagger. Press Enter To Continue
Traceback (most recent call last):
File "lodarena.py", line 398, in <module>
character_gen()
File "lodarena.py", line 393, in character_gen
buy_weapon(level_one_weapons)
File "lodarena.py", line 139, in buy_weapon
""" % (weapons[0], sword_price, weapons[1], blunt_price, weapons[2], agile_price)
IndexError: list index out of range
Raymond-Weisss-MacBook-Pro:lodarena Raylug$
P.S。我使用的是python 2.7
答案 0 :(得分：1)
在buy_weapons功能中，将第一行设为“打印武器”，只是为了调试代码。 。 。你可能没有通过你认为传递的东西
当你正在学习python时，你在做第一次学习语言时我们大多数人做的事情都是一样的，你可能想要研究一些数据结构。我猜你还没有为对象做好准备，但是使用嵌套字典可能是值得的，例如：
weapons = {1 : {'sword': {'name':'name here',
'price': 123},
'blunt': {'name':'name here',
'price': 123},
'agile': {'name':'name here',
'price': 123},
},
2 : {'sword': {'name':'name here',
'price': 123},
'blunt': {'name':'name here',
'price': 123},
'agile': {'name':'name here',
'price': 123},
},
#add levels as you need
}
基本上，你正在创建一个花哨的查找类型的东西，跟踪，级别，然后武器类型，名称和价格，你可以访问它们，如：
level = 1
type = 'sword'
weaponname = weapons[level][type]['name']
weaponprice = weapons[level][type]['price']