我正在制作 Hangman 游戏。这个函数应该检查单词中是否有猜测的字母,打印到目前为止的猜测进度,并更新包含猜测的数组。 “guess”是一组下划线,随着游戏的进行,每个下划线都会被正确的字母替换:
def check_guess(word, guess, letter):
for i in range(len(word)):
if word[i] == letter:
guess[i] = letter
print(guess[i], end=' ')
else:
print('_', end=' ')
print ('\n')
return guess
假设单词是“eaten”,猜测是五个下划线组成的数组,字母是'e'。如果我输入:
guess = check_guess(word, guess, 'e')
它会正确打印,但不会将猜测更新为
['e', '_', '_', 'e', '_']
它仍然是五个下划线的数组。
事实上,如果我这样编码,它只会更新数组:
def check_guess(word, guess, letter):
for i in range(len(word)):
if word[i] == letter:
guess[i] = letter
print(guess[i], end=' ')
print ('\n')
return guess
我完全不明白为什么较长的版本不更新数组,而较短的版本却更新数组。我都在做 guess[i] = letter。
感谢您帮助解决这个问题。我喜欢在事情发生时理解为什么事情会发生!
请您参考如下方法:
嗯。要事第一。
您的代码不适用于语法问题。显然你正试图在打印命令中设置一个变量,但不确定为什么。
def check_guess(word, guess, letter):
for i in range(len(word)):
if word[i] == letter:
guess[i] = letter
print(guess[i], end=' ')
else:
print('_', end=' ')
print ('\n')
return guess
结果:
File "<ipython-input-1-14d09305bfe6>", line 5
print(guess[i], end=' ')
^
SyntaxError: invalid syntax
所以让我们暂时不考虑“结束”,看看你的函数到底在做什么:
它要求三个参数;单词,猜测,字母。
它以一种非常规的方式遍历单词中的每个字母(而不是获取位置并引用它们,你可以直接得到字母)
它检查给定的字母是否==单词
中的字母 如果是这样,它将与猜测的字母相关联
并打印字母
否则打印下划线
它返回更新后的猜测
好的。所以显然猜测可以(应该)是一个全局变量,以及“单词”。 也许只将字母作为函数参数传递会更清晰/更明智。
遍历单词中的每个字母而不是位置索引器也会更清晰,但同时我们可以枚举它,以便我们知道如何引用猜测变量。
此外,除了一次打印一个字母外,我们还可以在函数末尾打印整个猜测。
此外,如果它是一款游戏,您希望它在玩家获胜或失败之前一直处于交互/循环状态,因此它应该在一个循环中。
我的版本是这样的:
第一部分:
## declaring main variables ##
word = "Upvote this if helpful"
word = word.lower()
guess = list('_'*len(word))
for position, letter in enumerate(word):
if letter == ' ':
guess[position] = ' '
trials = 5
breaker = False
游戏功能:
## defining guess function ##
def guess_function(letter):
letter = letter.lower()
missed_guess = True
global trials
global guess
global breaker
global word
for position, word_letter in enumerate(word):
if letter == word_letter:
missed_guess = False
guess[position] = letter
if missed_guess:
trials = trials - 1
print ('Letter %s not in word. You lose 1 trial. You got %d chances left!\n' %(letter, trials))
if trials == 0:
print ('Oh no! You lost! The word was: %s' %word)
breaker = True
return
else:
if '_' in guess:
print ('Word so far: %s\n%s chances left! Keep it going!\n' %(''.join(guess), trials))
else:
print ('You made it! The word was:\n%s\n\nCONGRATS!!' %(''.join(guess)))
breaker = True
return
游戏开始:
breaker = False
while breaker==False:
input_letter = raw_input("Give me a letter!")
guess_function(input_letter)
示例游戏:
Give me a letter!a
Letter a not in word. You lose 1 trial. You got 4 chances left!
Give me a letter!u
Word so far: u_____ ____ __ _____u_
4 chances left! Keep it going!
Give me a letter!p
Word so far: up____ ____ __ ___p_u_
4 chances left! Keep it going!
Give me a letter!v
Word so far: upv___ ____ __ ___p_u_
4 chances left! Keep it going!
Give me a letter!o
Word so far: upvo__ ____ __ ___p_u_
4 chances left! Keep it going!
Give me a letter!t
Word so far: upvot_ t___ __ ___p_u_
4 chances left! Keep it going!
Give me a letter!e
Word so far: upvote t___ __ _e_p_u_
4 chances left! Keep it going!
Give me a letter!h
Word so far: upvote th__ __ he_p_u_
4 chances left! Keep it going!
Give me a letter!i
Word so far: upvote thi_ i_ he_p_u_
4 chances left! Keep it going!
Give me a letter!s
Word so far: upvote this i_ he_p_u_
4 chances left! Keep it going!
Give me a letter!f
Word so far: upvote this if he_pfu_
4 chances left! Keep it going!
Give me a letter!l
You made it! The word was:
upvote this if helpful
CONGRATS!!
