Question

我是python的新手，我正在建立一个自学python的游戏。这个游戏将有一些课程，有问题和答案;用户将根据答案的有效性获得和失去分数。

我正在使用词典来存储每节课中会提出的问题和答案。

我想仅在特定点显示和检查字典的键和值（例如，在用户输入命令之后）。为此，我想象我可以创建包含字典的函数，然后在需要时将它们传递给main函数。

但是当我运行下面的代码时，我收到以下错误：AttributeError：'function'对象没有属性'iteritems'

所以我有两个问题：

我尝试从函数中删除字典，它可以工作就好了。是否有任何方式（或理由）使其在内部工作一个功能？
是否可以只使用一个字典并在某些点检查其中一部分的键和值？

到目前为止，这是我的代码。任何建议都将不胜感激！

points = 10 # user begins game with 10 pts 

def point_system(): 
    global points

    #help user track points
    if 5 >= points: 
        print "Careful. You have %d points left." % points 
    elif points == 0: 
        dead("You've lost all your points. Please start over.")
    else:
        print "Good job. Spend your points wisely." 

def lesson1(): 
    #create a dictionary 
    mydict = {
    "q1":"a1", 
    "q2":"a2"
    }

return mydict

def main(lesson):
    global points

    #get key:value pair from dictionary
    for k, v in lesson.iteritems():
        lesson.get(k,v) # Is the .get step necessary? It works perfectly well without it.
        print k
        user_answer = raw_input("What's your answer?: ") 

#test if user_answer == value in dictionary, and award points accordingly 
        if user_answer == v:
            user_answer = True
            points += 1 #increase points by 1 
            print "Congrats, you gained a point! You now have %d points" % points 
            point_system()
        elif user_answer != v: 
            points -= 1 #decrease points by 1 
            print "Oops, you lost a point. You now have %d points" % points 
            point_system()
        else: 
            print "Something went wrong."
            point_system()


main(lesson1)

以及有效的代码：

points = 10 # user begins game with 10 pts 

#create a dictionary 
lesson1 = {
"q1":"a1", 
"q2":"a2"
}

def point_system(): 
    global points

    #help user track points
    if 5 >= points: 
    print "Careful. You have %d points left." % points 
    elif points == 0: 
    dead("You've lost all your points. Please start over.")
    else:
    print "Good job. Spend your points wisely." 

def main(lesson):
    global points

    #get key:value pair from dictionary
    for k, v in lesson.iteritems():
        lesson.get(k,v) # Is the .get step necessary? It works perfectly well without it.
        print k
        user_answer = raw_input("What's your answer?: ") 

#test if user_answer == value in dictionary, and award points accordingly 
        if user_answer == v:
            user_answer = True
            points += 1 #increase points by 1 
            print "Congrats, you gained a point! You now have %d points" % points 
            point_system()
        elif user_answer != v: 
            points -= 1 #decrease points by 1 
            print "Oops, you lost a point. You now have %d points" % points 
            point_system()
        else: 
            print "Something went wrong."
            point_system()


main(lesson1)

Answer 1

您使用lesson1函数调用main（），而不是使用lesson1函数（这是一个目录）的结果。

你应该写：

main(lesson1())

顺便说一下，lesson1还必须返回创建的目录才能使用：

def lesson1(): 
    #create a dictionary 
    mydict = {
        "q1":"a1", 
        "q2":"a2"
    }
    return mydict

Answer 2

您传递了一个返回字典的函数，因此您应该首先调用该函数来获取字典。因此，您可以修改代码，以便main接受字典（代码实际上需要字典）：

main(lesson1())

如果你真的想传递一个函数，那么你应该修改你main来先执行函数来获取字典：

def main(lessonFunc):
    global points
    lesson = lessonFunc()

    #get key:value pair from dictionary
    for k, v in lesson.iteritems():

但第一种选择可能更好。您还可以将课程打包到对象中。

Python：如何将包含字典的函数传递给另一个函数？

2 个答案: