Question

def GameMode():#creates a function with name of gamemode
    global wrong_answer_1
    for keys,values in keywords.items():#checks for the right answer
        if keys == code:#if the keys equal to the code value
            keyword_c = values
            global keyword_c
    for keys,values in definition.items():#checks for the right answer
        if keys == code + 1:#if the keys equal the code add 1
            definition_c = values#set s to be the values
    for keys,values in definition.items():#checks for the right answer
        if inc == keys:#if the keys equal the code add 1
            wrong_answer_1 = values#set s to be the values
    for keys,value in definition.items():#For the keys in the dictionary
        if keys == inc2:#if the keys equal to a value
            global wrong_answer_2
            wrong_answer_2 = value

    print(wrong_answer_2, "Hi")

我正在尝试将变量keyword_c，definition_c，wrong_answer_1和wrong_answer_2设为全局变量，因此我可以在其他函数中使用它们，但我似乎无法使其工作，我有点像新手一样它来到python。我尝试过使用＆＃34; global＆＃34;正如你在上面看到的那样，我试图调用变量并传递它们，但我不能完全理解它，以便能够弄明白。

keyword_c = ''
definition_c = ''
wrong_answer_1 = ''
wrong_answer_2 = ''

我已经预先定义了变量，看看它是否有效，它们在那里，但它现在只是一个空字符串，所以我的程序正在接受变量被定义的事实。

Traceback (most recent call last):
  File "D:\Program.py", line 67, in <module>
   GameMode()#calls the function
  File "D:\Program.py", line 55, in GameMode
    print(wrong_answer_2, "Hi")
NameError: name 'wrong_answer_2' is not defined

如果我删除将其设置为空字符串的原始行

，则会出现错误

Answer 1

为什么不想创建包含变量的类：

self.keyword_c = ''
self.definition_c = ''
self.wrong_answer_1 = ''
self.wrong_answer_2 = ''

因此变量将是全局的（如果每个方法和变量都在类中）并且使用您的方法：

def GameMode(self):#creates a function with name of gamemode
    for keys,values in keywords.items():#checks for the right answer
        if keys == code:#if the keys equal to the code value
            self.keyword_c = values
            #(...)

实际上，这是一个可能产生错误的错误（评论它）：

def GameMode():#creates a function with name of gamemode
    global wrong_answer_1
    for keys,values in keywords.items():#checks for the right answer
        if keys == code:#if the keys equal to the code value
            keyword_c = values # keyword_c doesn't exist here, you cannot assign here
            global keyword_c   # its created here, so it now exists

Answer 2

我不确定你的功能应该做什么;很难用所有的语法错误来猜测，但是下面修复了语法错误，使用函数顶部的单个全局函数来处理函数中未定义的所有内容。

def GameMode():#creates a function with name of gamemode
    global inc, inc2, code, wrong_answer_1, wrong_answer_2, keyword_c
    for keys,values in keywords.items():#checks for the right answer
        if keys == code:#if the keys equal to the code value
            keyword_c = values
    for keys,values in definition.items():#checks for the right answer
        if keys == code + 1:#if the keys equal the code add 1
            definition_c = values#set s to be the values
    for keys,values in definition.items():#checks for the right answer
        if inc == keys:#if the keys equal the code add 1
            wrong_answer_1 = values#set s to be the values
    for keys,value in definition.items():#For the keys in the dictionary
        if keys == inc2:#if the keys equal to a value
            wrong_answer_2 = value

    print(wrong_answer_2, "Hi")

keywords = {
    1: 'a',
}
definition = {
    1: 'a',
}
code = 1
inc = 1
inc2 = 1
wrong_answer_1 = None
wrong_answer_2 = None
keyword_c = None

GameMode()
print(inc, inc2, code, wrong_answer_1, wrong_answer_2, keyword_c)

那将输出：

a Hi
1 1 1 a a a

变量未定义PYTHON 3.5.2

2 个答案: