Question

我正在做一个基本游戏。我想知道如何让代码转到代码/ if语句中的特定点，而不是从头开始。

例如，在第19行的代码中：kithcen()我不想将其重定向到if语句的开头;再次描述厨房，然后要求输入：choice02 = raw_input("What do you do?")，但我希望它直接跳到输入部分。

def kitchen():
    print "You see a dusty old kitchen, nobody has probably used it for quite a while."
    print "There are 3 different cupboards(0, 1, 2) or a letter(3) placed on the counter."
    choice02 = raw_input("What do you do? >")

    if choice02 == "0" or choice02 == "first cupboard" or choice02 == "check first cupboard" or choice02 == "open first cupboard":
        print "You see a dusty empty bottles of milks, with spiderwebs at the corners of the cupboard. Nothing of Interest here."
        raw_input(">")
        kitchen()

    elif choice02 == "1" or choice02 == "second cupbaord" or choice02 == "check second cupboard" or choice02 == "open second cupboard":
        print "You see some packs of likely expired cereal and a key(0)."
        choice_02_A = raw_input("What do you do? >")

   #----------------------------------------------------------------------------------------------------------#
        if choice02_A == "pick key" or choice02_A == "key" or choice02_A == "0" or choice02_A == "get key":
            print "You picked the key. This probably unlocks some door."
            raw_input("> ")
            kitchen()

        elif choice02_A == "close cupboard" or choice02_A == "kitchen" or choice02_A == "go back to kitchen":
            kitchen()

        else:
            print "Not a valid option."
   #-----------------------------------------------------------------------------------------------------------#

    elif choice02 == "2" or choice02 == "third cupboard" or choice02 == "check third cupboard" or choice02 == "open third cupboard":
        print "You see an empty or dusty cupboard. Nothing of interest here."
        raw_input("> ")
        kitchen()

    elif choice02 == "3" or choice02 == "check letter" or choice02 == "letter" or choice02 == "read letter":
        print """
        You read the letter:
        \n"Dear Shawn............\n"
        It makes no sense to you.
        """


    elif choice02 == "go back" or choice02 == "entrance hall" or choice02 == "go to entrance hall":
        entrance_hall()

else:
    "Not a valid Option."

Answer 1

我看不到循环，但如果你只想从外面调用函数时需要print语句，你可以有一个像这样的可选布尔值：

def kitchen(already_there=False):
    if not already_there:
        print('...')
    choice02 = raw_input("What do you do? >")

    # ...

    elif # ...
        # ...
        kitchen(already_there=True)

Answer 2

您可能需要考虑重构代码并使用字典来避免使用if-else语句。

请参阅https://stackoverflow.com/a/27365077/2884613。

print "There are 3 different cupboards(0, 1, 2) or a letter(3) placed on the counter." 

alias = {
  '0': '0',
  'first cupboard': '0',
  'check first cupboard': '0',
  'open first cupboard': '0',
  '1': '1',
  'second cupboard': '1',
  'check second cupboard':'1',
  ...
}

dic = {
  "0":"You see a dusty empty bottles of milks, with spiderwebs at the corners of the cupboard. Nothing of Interest here.",  \
  "1":"You see some packs of likely expired cereal and a key(0).",  \
  "2":"You see an empty or dusty cupboard. Nothing of interest here."
  ...
}

while(True):
  choice02 = raw_input("What do you do? >")
  if choice02 in alias:
    print dic[alias[choice02]]
    break
  else:
    print "Not a valid option"

我如何使代码跳转到if语句

2 个答案: