与我的迷你游戏有关的另一个问题。我在之前的问题上得到了很多帮助，我希望我不要浪费你的时间在这样一个很可能是愚蠢的问题上。 这是代码：
import time
import random
inventory = []
miningskill = 1
fishingskill = 1
gold = 0
rawfish = ["Mackarel", "Cod", "Salmon", "Herring", "Tuna"]
cookedfish = ["Cooked Mackarel", "Cooked Cod", "Cooked Salmon", "Cooked Herring", "Cooked Tuna"]
trash = ["Old Shoe", "Thin Bone", "Rusted Empty Box", "Plank Fragment"]
special = ["Copper Ring"]
mackarel_range = range(1,3)
cod_range = range(3,5)
salmon_range = range(5,7)
herring_range = range(7,9)
tuna_range = range(9,11)
oldshoe_range = range(11,16)
plasticbag_range = range(16,21)
rustedemptybox_range = range(21,26)
plankfragment_range = range(26,31)
copperring_range = range(31,32)
print" _ _ _ _ ______ _ _ _ "
print" | | | | (_) ( ) | ____(_) | | (_)"
print" | | ___ | |_ __ _ _ __ |/ ___ | |__ _ ___| |__ _ _ __ __ _ "
print" | | / _ \| | '_ \| | '_ \ / __| | __| | / __| '_ \| | '_ \ / _` |"
print" | |___| (_) | | |_) | | | | | \__ \ | | | \__ \ | | | | | | | (_| |"
print" |______\___/|_| .__/|_|_| |_| |___/ |_| |_|___/_| |_|_|_| |_|\__, |"
print" | | __/ |"
print" |_| |___/ "
time.sleep(2)
print". . . .--."
print" \ / o .'| )"
print" \ / .-. .--..--. . .-. .--. o | --:"
print" \ / (.-' | `--. | ( )| | | )"
print" ' `--'' `--'-' `- `-' ' `- o '---'o`--'"
time.sleep(2)
print "In this current version the first item in your inventory is sold."
def sell_function():
if inventory[0] in rawfish:
sold = inventory.pop(0)
global gold
gold = gold+5
print "You have sold a", sold, "for 5 gold coins!"
elif inventory[0] in trash:
sold = inventory.pop(0)
global gold
gold = gold+1
print "You have recycled a", sold, "for 1 gold coins!"
elif inventory[0] in special:
sold = inventory.pop(0)
global gold
gold = gold+10
print "You have sold a", sold, "for 10 gold coins!"
elif inventory[0] in cookedfish:
sold = inventory.pop(0)
global gold
gold = gold+8
print "You have sold a", sold, "for 8 gold goins!"
else:
print "Shopkeeper:'You can't sell that.'"
def fish_function_beginner():
random_fishingchance = random.randrange(1,32)
if 1 <= random_fishingchance < 3:
inventory.append("Mackarel")
print "You have reeled in a Mackarel!"
time.sleep(0.5)
print "You place it into your inventory"
global fishingskill
fishingskill = fishingskill + 1
fishingskill_new = fishingskill
print "Your fishing skill is now",fishingskill_new,"It has increased by 1"
elif 3 <= random_fishingchance < 5:
inventory.append("Cod")
print "You have reeled in a Cod!"
time.sleep(0.5)
print "You place it into your inventory"
global fishingskill
fishingskill = fishingskill + 1
fishingskill_new = fishingskill
print "Your fishing skill is now",fishingskill_new,"It has increased by 1"
elif 5 <= random_fishingchance < 7:
inventory.append("Salmon")
print "You have reeled in a Salmon!"
time.sleep(0.5)
print "You place it into your inventory"
global fishingskill
fishingskill = fishingskill + 1
fishingskill_new = fishingskill
print "Your fishing skill is now",fishingskill_new,"It has increased by 1"
elif 7 <= random_fishingchance < 9:
inventory.append("Herring")
print "You have reeled in a Herring!"
time.sleep(0.5)
print "You place it into your inventory"
global fishingskill
fishingskill = fishingskill + 1
fishingskill_new = fishingskill
print "Your fishing skill is now",fishingskill_new,"It has increased by 1"
elif 9 <= random_fishingchance < 11:
inventory.append("Tuna")
print "You have reeled in a Tuna!"
time.sleep(0.5)
print "You place it into your inventory"
global fishingskill
fishingskill = fishingskill + 1
fishingskill_new = fishingskill
print "Your fishing skill is now",fishingskill_new,"It has increased by 1"
elif 11 <= random_fishingchance < 16:
inventory.append("Old Shoe")
print "You have reeled in an Old Shoe..."
time.sleep(0.5)
print "You place it into your inventory"
elif 16 <= random_fishingchance < 21:
inventory.append("Thin Bone")
print "You have reeled in a Thin Bone..."
time.sleep(0.5)
print "You place it into your inventory"
elif 21 <= random_fishingchance < 26:
inventory.append("Rusted Empty Box")
print "You have reeled in a Rusted Empty Box..."
time.sleep(0.5)
print "You place it into your inventory"
elif 26 <= random_fishingchance < 31:
inventory.append("Plank Fragment")
print "You have reeled in a Plank Fragment..."
time.sleep(0.5)
print "You place it into your inventory"
elif 31 <= random_fishingchance < 32:
inventory.append("Copper Ring")
print "You have reeled in a ring shaped object covered in mud."
print "After cleaning it you notice it is a Copper Ring!"
time.sleep(0.5)
print "You place it into your inventory"
global fishingskill
fishingskill = fishingskill + 2
fishingskill_new = fishingskill
print "Your fishing skill is now",fishingskill_new,"It has increased by 2"
else:
print "It seems your fishing line has snapped!"
def fish_function_amateur():
random_fishingchance = random.randrange(1,29)
if 1 <= random_fishingchance < 3:
inventory.append("Mackarel")
print "You have reeled in a Mackarel!"
time.sleep(0.5)
print "You place it into your inventory"
global fishingskill
fishingskill = fishingskill + 1
fishingskill_new = fishingskill
print "Your fishing skill is now",fishingskill_new,"It has increased by 1"
elif 3 <= random_fishingchance < 5:
inventory.append("Cod")
print "You have reeled in a Cod!"
time.sleep(0.5)
print "You place it into your inventory"
global fishingskill
fishingskill = fishingskill + 1
fishingskill_new = fishingskill
print "Your fishing skill is now",fishingskill_new,"It has increased by 1"
elif 5 <= random_fishingchance < 7:
inventory.append("Salmon")
print "You have reeled in a Salmon!"
time.sleep(0.5)
print "You place it into your inventory"
global fishingskill
fishingskill = fishingskill + 1
fishingskill_new = fishingskill
print "Your fishing skill is now",fishingskill_new,"It has increased by 1"
elif 7 <= random_fishingchance < 9:
inventory.append("Herring")
print "You have reeled in a Herring!"
time.sleep(0.5)
print "You place it into your inventory"
global fishingskill
fishingskill = fishingskill + 1
fishingskill_new = fishingskill
print "Your fishing skill is now",fishingskill_new,"It has increased by 1"
elif 9 <= random_fishingchance < 11:
inventory.append("Tuna")
print "You have reeled in a Tuna!"
time.sleep(0.5)
print "You place it into your inventory"
global fishingskill
fishingskill = fishingskill + 1
fishingskill_new = fishingskill
print "Your fishing skill is now",fishingskill_new,"It has increased by 1"
elif 11 <= random_fishingchance < 15:
inventory.append("Old Shoe")
print "You have reeled in an Old Shoe..."
time.sleep(0.5)
print "You place it into your inventory"
elif 15 <= random_fishingchance < 19:
inventory.append("Thin Bone")
print "You have reeled in a Thin Bone..."
time.sleep(0.5)
print "You place it into your inventory"
elif 19 <= random_fishingchance < 24:
inventory.append("Rusted Empty Box")
print "You have reeled in a Rusted Empty Box..."
time.sleep(0.5)
print "You place it into your inventory"
elif 24 <= random_fishingchance < 29:
inventory.append("Plank Fragment")
print "You have reeled in a Plank Fragment..."
time.sleep(0.5)
print "You place it into your inventory"
elif 29 <= random_fishingchance < 30:
inventory.append("Copper Ring")
print "You have reeled in a ring shaped object covered in mud."
print "After cleaning it you notice it is a Copper Ring!"
time.sleep(0.5)
print "You place it into your inventory"
global fishingskill
fishingskill = fishingskill + 2
fishingskill_new = fishingskill
print "Your fishing skill is now",fishingskill_new,"It has increased by 2"
else:
print "It seems your fishing line has snapped!"
def action_function():
while True:
print "For a list of commands type 'help'"
action = raw_input("What do you want to do? >")
if action == "quit":
break
end
if action == "sell":
sell_function()
if action == "fish":
print "You throw your reel..."
time.sleep(10)
fish_skillcheck_function()
if action == "inventory":
print "You begin to open your inventory"
time.sleep(0.5)
print inventory
if action == "money":
print "You have",gold,"gold"
if action == "gold":
print "You have",gold,"gold"
if action == "cook":
fish_cookcheck_function()
if action == "fishingskill":
if 1 <= fishingskill < 75:
print "Your fishing skill is",fishingskill
print "Fishing Rank: Beginner"
elif 75 <= fishingskill < 150:
print "Your fishing skill is",fishingskill
print "Fishing Rank: Amateur"
elif 150 <= fishingskill < 300:
print "Your fishing skill is",fishingskill
print "Fishing Rank: Regular"
elif 300 <= fishingskill < 500:
print "Your fishing skill is",fishingskill
print "Fishing Rank: Seasoned"
elif 500 <= fishingskill < 750:
print "Your fishing skill is",fishingskill
print "Fishing Rank : Professional"
elif 750 <= fishingskill < 1000:
print "Your fishing skill is",fishingskill
print "Fishing Rank : Expert"
elif 1000 <= fishingskill < 9001:
print "Your fishing skill is",fishingskill
print "Fishing Rank : Fishing Grandmaster"
else:
print "Your skill is not available."
if action == "help":
print "Commands are= 'help' 'quit' 'sell' 'fish' 'fishingskill' 'gold' 'money' 'cook' and 'inventory"
if action == "cook":
fish_cookcheck_function()
def fish_cookcheck_function():
if inventory[0] == "Mackarel":
cooked = inventory.pop(0)
inventory.append("Cooked Mackarel")
print "You have cooked a", cooked
elif inventory[0] == "Cod":
cooked = inventory.pop(0)
inventory.append("Cooked Cod")
print "You have cooked a", cooked
elif inventory[0] == "Salmon":
cooked = inventory.pop(0)
inventory.append("Cooked Salmon")
print "You have cooked a", cooked
elif inventory[0] == "Herring":
cooked = inventory.pop(0)
inventory.append("Cooked Herring")
print "You have cooked a", cooked
elif inventory[0] == "Tuna":
cooked = inventory.pop(0)
inventory.append("Cooked Tuna")
print "You have cooked a", cooked
else:
"You can't cook this."
action_function()
def fish_skillcheck_function():
if 1 <= fishingskill < 75:
fish_function_beginner()
elif 75 <= fishingskill < 150:
fish_function_amateur()
else:
print "My fishing level is too low"
action_function()
现在，根据我认为应该发生的事情，如果存在诸如库存中没有任何东西可以出售的问题那么它应该进入
的其他部分def sell_function():
if inventory[0] in rawfish:
sold = inventory.pop(0)
global gold
gold = gold+5
print "You have sold a", sold, "for 5 gold coins!"
elif inventory[0] in trash:
sold = inventory.pop(0)
global gold
gold = gold+1
print "You have recycled a", sold, "for 1 gold coins!"
elif inventory[0] in special:
sold = inventory.pop(0)
global gold
gold = gold+10
print "You have sold a", sold, "for 10 gold coins!"
elif inventory[0] in cookedfish:
sold = inventory.pop(0)
global gold
gold = gold+8
print "You have sold a", sold, "for 8 gold goins!"
else:
print "Shopkeeper:'You can't sell that.'"
然而，正如一些更高级的程序员可能已经注意到存在一些问题。 这是我尝试以空库存销售时收到的错误（类似于当我尝试使用空库存烹饪时发生的情况）：
Traceback (most recent call last):
File "C:\Users\Lolpin\Desktop\fishinglooptest.py", line 308, in <module>
action_function()
File "C:\Users\Lolpin\Desktop\fishinglooptest.py", line 231, in action_function
sell_function()
File "C:\Users\Lolpin\Desktop\fishinglooptest.py", line 40, in sell_function
if inventory[0] in rawfish:
IndexError: list index out of range
当我试图找到有关相同/类似错误的回答问题时，我无法将它们放入我的代码的上下文中。 ._。
答案 0 :(得分：3)
使用if inventory条件检查inventory是否为空：
def sell_function():
if inventory:
if inventory[0] in rawfish:
#other code
else:
print "Shopkeeper:'You can't sell that.'"
答案 1 :(得分：1)
问题是您的inventory列表为空（因此没有第0个元素）。您可以使用if声明来检查：
def sell_function():
if not inventory:
print "your inventory is empty! You cannot sell anything"
return
if inventory[0] in rawfish:
...
答案 2 :(得分：1)
此外，您可以使用try / except来捕捉您的广告资源是否包含项目
try:
if inventory[0] in rawfish:
#...all code
except IndexError:
print "your inventory is empty"