[英]Why does my code give this error?
我是一名剛開始的Python程序員,剛剛完成了我的第一個程序Battle。 但是我有一個問題。 據我所知,所有代碼都可以正常工作,除了末尾的一部分,我得到了UnboundLocalError
,看看:
Traceback (most recent call last):
File "[Dir]\Programs\Battle.py", line 210, in <module>
callUserCombat()
File "[Dir]\Programs\Battle.py", line 26, in callUserCombat
playerLeft = str(playerLeft)
UnboundLocalError: local variable 'playerLeft' referenced before assignment
這就是它的意思(不小的金額,對不起):
#Define callUserCombat().
def callUserCombat():
print('Your turn.')
time.sleep(2)
print()
print('Choose a move:')
print('Attack 1 [2 - 3 Damage] (1)')
print('Attack 2 [0 - 5 Damage] (2)')
print('Heal [Heals 0 - 6] (3)')
playerLeft = str(playerLeft)
enemyLeft = str(enemyLeft)
print('Your HP: ' + playerLeft)
print('Enemy HP: ' + enemyLeft)
chosenAttack = input()
while chosenAttack != '0':
if chosenAttack == '1':
chosenAttackPower = random.randint(2,3)
enemyLeft = - chosenAttackPower
chosenAttackPower = str(chosenAttackPower)
print('You attacked!')
print('Enemy lost ' + chosenAttackPower + 'HP. ')
break
if chosenAttack == '2':
chosenAttackPower = random.randint(0,5)
enemyLeft = - chosenAttackPower
chosenAttackPower = str(ChosenAttackPower)
print('You attacked!')
print("Enemy lost " + chosenAttackPower + 'HP. ')
break
if chosenAttack == '3':
chosenAttackPower = random.randint(1,5)
playerLeft = + chosenAttackPower
chosenAttackPower = str(ChosenAttackPower)
print('You healed!')
print('Healed ' + chosenAttackPower + 'HP.')
break
else:
chosenAttack = '0'
print('Please enter a valid move code.')
print("Attack 1 (1)")
print("Attack 2 (2)")
print("Heal (3)")
print()
chosenAttack = input()
limitHealth()
#Define callEnemyCombat().
def callEnemyCombat():
print('Enemy\'s turn.')
time.sleep(2)
print()
enemyAttack = random.randint(1,6)
if enemyAttack == '1':
enemyAttackPower = random.randint(2,3)
playerLeft = - enemyAttackPower
enemyAttackPower = str(enemyAttackPower)
print('Don\'t bother taunting me, you\'ll die trying. And it\'s mean.')
print('Enemy attacked!')
print('You lost ' + enemyAttackPower + 'HP. ')
if enemyAttack == '2':
enemyAttackPower = random.randint(2,3)
playerLeft = - enemyAttackPower
enemyAttackPower = str(enemyAttackPower)
print('Where do you live? I only want to know so I can kill')
print('your family once I\'m finished with you.')
print('Enemy attacked!')
print('You lost ' + enemyAttackPower + 'HP. ')
if enemyAttack == '3':
enemyAttackPower = random.randint(2,3)
playerLeft = - enemyAttackPower
enemyAttackPower = str(enemyAttackPower)
print('I can take anything you can throw at me. Except Chocolate.')
print('I\'m allergic to Chocolate.')
print('Enemy attacked!')
print('You lost ' + enemyAttackPower + 'HP. ')
if enemyAttack == '4':
enemyAttackPower = random.randint(0,5)
playerLeft = - enemyAttackPower
enemyAttackPower = str(enemyAttackPower)
print('I WILL kill you, even if I have to hire the Men in Black to do it.')
print('Enemy attacked!')
print('You lost ' + enemyAttackPower + 'HP. ')
if enemyAttack == '5':
enemyAttackPower = random.randint(0,5)
playerLeft = - enemyAttackPower
enemyAttackPower = str(enemyAttackPower)
print('Have you heard of pong? We could play pong after I kill you,')
print('if you like.')
print('Enemy attacked!')
print('You lost ' + enemyAttackPower + 'HP. ')
if enemyAttack == '6':
enemyAttackPower = random.randint(1,5)
enemyLeft = + enemyAttackPower
enemyAttackPower = str(ChosenAttackPower)
print('Charging up with a cold glass of water, and a side of you.')
print('Enemy healed!')
print('Healed ' + chosenAttackPower + 'HP.')
limitHealth()
#Define limitHealth().
def limitHealth():
if playerLeft > playerHealth:
playerLeft = playerHealth
if enemyLeft > enemyHealth:
enemyLeft = enemyHealth
這是代碼,所有這些都有意義:( https://www.dropbox.com/s/9l4ifgmk5sx1pg1/Battle.py )。
編輯:很抱歉,這篇文章寫得很糟糕,所以我修復了。
這是一個范圍變量問題。 您需要這樣輸入您的globals變量:
enemyHealth = 1
playerLeft = 2
enemyLeft = 2
...
#Define callUserCombat().
def callUserCombat():
global enemyHealth
global playerLeft
global enemyLeft
etc.
絕對是范圍問題,更具體地說,是python在嘗試為其分配名稱時(即,當您嘗試分配變量playerLeft
)解析名稱的方式。 您可以在這里查看: http : //eli.thegreenplace.net/2011/05/15/understanding-unboundlocalerror-in-python/了解完整說明。
由於您似乎只是在嘗試打印全局變量playerLeft
的值。 只需執行以下操作即可:
playerLeft = 2
enemyLeft = 2
...
#Define callUserCombat().
def callUserCombat():
...
print('Your HP: ', playerLeft)
print('Enemy HP: ', enemyLeft)
...
應該避免問題
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