Question

几小时前我刚刚开始学习Python，似乎有一个我似乎无法获得的问题。

他们让我：

添加一个名为list_benefits（）的函数 - 它返回以下字符串列表：“更有组织的代码”，“更易读的代码”，“更轻松的代码重用”，“允许程序员共享和连接代码”
添加一个名为build_sentence（info）的函数，它接收一个包含字符串的参数，并返回一个以给定字符串开头并以字符串“是函数的好处！”结尾的句子。
运行并查看所有功能一起工作！

我已经用Google搜索了这个问题，但所有这些似乎都是针对以前版本的python，我希望有更新的方法来实现这一目标。

鉴于代码：

def name_the_benefits_of_functions():
    list_of_benefits = list_benefits()
    for benefit in list_of_benefits:
        print build_sentence(benefit)

name_the_benefits_of_functions()

预期产出：

More organized code is a benefit of functions!
More readable code is a benefit of functions!
Easier code reuse is a benefit of functions!
Allowing programmers to share and connect code together is a benefit of functions!

我尝试过：

def list_benefits():
    benefits_list = ["More organized code", "More readable code", "Easier code reuse",           "Allowing programmers to share and connect code together"]
    return benefits_list
def build_sentence(benefit):
    return "%s is a benefit of functions!" % list_benefits()

def name_the_benefits_of_functions():
    list_of_benefits = list_benefits()
    for benefit in list_of_benefits:
        print(build_sentence(benefit))

name_the_benefits_of_functions()

输出：

['More organized code', 'More readable code', 'Easier code reuse', 'Allowing programmers to share and connect code together'] is a benefit of functions!
['More organized code', 'More readable code', 'Easier code reuse', 'Allowing programmers to share and connect code together'] is a benefit of functions!
['More organized code', 'More readable code', 'Easier code reuse', 'Allowing programmers to share and connect code together'] is a benefit of functions!
['More organized code', 'More readable code', 'Easier code reuse', 'Allowing programmers to share and connect code together'] is a benefit of functions!

有谁能告诉我我做错了什么？

Answer 1

每次调用build_sentence()函数时，您只希望它使用您在benefit参数中指定的单个权益来构建句子。

def build_sentence(benefit):
    return "%s is a benefit of functions!" % benefit

对于此循环的每次迭代：

for benefit in list_of_benefits:
    print(build_sentence(benefit))

将一个好处传递给build_sentence()函数，这就是您要打印的内容。

Answer 2

我认为你想要做的是：

def build_sentence(benefit):
    return "%s is a benefit of functions!" % benefit

您在name_the_benefits_of_functions到list_benefits()的通话将结果列表存储在本地变量list_of_benefits中。现在你迭代（正确），但在你的build_sentence函数中，你反复获得一个新的好处列表。而不是这样做，只需添加传入的单个benefit。

我知道你是Python新手，所以欢迎。我相信你会看到generators上的部分，但是这里有一个修改过的例子，使用它来获得乐趣。

def list_benefits():
    benefits_list = ["More organized code", "More readable code", "Easier code reuse", "Allowing programmers to share and connect code together"]
    i = 0
    while i < len(benefits_list):
        yield benefits_list[i]
        i += 1

Answer 3

我只是遇到了同样的问题。我的name_the_benefits_of_functions()函数有点垃圾，因为它只重复了四次，而不是在list_of_benefits耗尽时优雅地失败，但这对我有用：

# Modify this function to return a list of strings as defined above
def list_benefits(count): #just a list of benefits. It spits out whatever number 'count' happens to be
    list_of_benefits = ["More organized code", "More readable code", "Easier code reuse", "Allowing programmers to share and connect code together"]
return list_of_benefits[count]

# Modify this function to concatenate to each benefit - " is a benefit of functions!"
def build_sentence(benefit): #tacks on the sentence end, and that's it
    return "%s is a benefit of functions!" % benefit

def name_the_benefits_of_functions():
    count = 0
    while count < 4: # not very graceful, but oh well
        benefit = list_benefits(count)
        print build_sentence(benefit)
        count += 1

name_the_benefits_of_functions()

Answer 4

当您应该依次传递列表中的每个字符串时，您将字符串列表传递给函数build_sentence。

list_of_benefits = list_benefits()
for item in list_of_benefits:
    print build_sentence(item)

您还需要在此处的问题中格式化代码，以便更容易解密。

我希望我能正确理解你的问题。

Answer 5

这对我有用。花了我一段时间，我得到了缩略词，整个错误的伽玛和所有类型的烟花，但正确的答案。

最后......我意识到你并不真正需要所有功能的意大利面（就像他们设定的那样。 - 我试图让这些功能起作用，因为我认为它是必需的;但它是不是。所以我很惊讶我弹出了下一章。

我学过的课程？..区分 return 和 print 并使用它。

说得好。这是代码！：

# Modify this function to return a list of strings as defined above
s= ("More organized code", "More readable code", "Easier code reuse", "Allowing programmers to share and connect code together")
def list_benefits(s):
  for b in s:
    return b

def build_sentences(s):
  for b in s:
    print b + " is a benefit of functions!"

list_benefits(s)
build_sentences(s)

Answer 6

我是初学者，这是我的答案

def list_benefits（）：

benefit_list= ["More organized code","More readable code", "Easier code reuse","Allowing programmers to share and connect code together"]

return benefit_list
pass

def build_sentence（好处）：

return benefit + " is a benefit of functions!"

pass

def name_the_benefits_of_functions（）：

list_of_benefits = list_benefits()

for benefit in list_of_benefits:

    print build_sentence(benefit)

name_the_benefits_of_functions（）

Answer 7

答案（简短而甜蜜）：

    # Modify this function to return a list of strings as defined above
def list_benefits():
    return "More organized code", "More readable code", "Easier code reuse", "Allowing programmers to share and connect code together"



# Modify this function to concatenate to each benefit - " is a benefit of functions!"
def build_sentence(benefit):
    return "%s is a benefit of functions!" % benefit


def name_the_benefits_of_functions():
    list_of_benefits = list_benefits()
    for benefit in list_of_benefits:
        print build_sentence(benefit)

name_the_benefits_of_functions()

删除你的清单，只需返回字符串。

陷入Learnpython.org教程（关于功能）

7 个答案: