Python If Case的麻烦

Question

我正在上一节课而且我被困住了.由于我是Python的新手,很难弄清楚我哪里出错了.

#Write your two "if" statements below!

def true_function():
    if                #Fill in your `if` statement here!
        return        #Make sure this function returns `True`

def false_function():
    if                #Fill in your `if` statement here!
        return        #Make sure this function returns `False`

这是我提出的解决方案,它给了我一个错误;

#Write your two "if" statements below!

    def true_function():
        if  2 + 2 == 4:           #Fill in your `if` statement here!
            return 'True'   #Make sure this function returns `True`

    def false_function():
        if  2 + 2 == 5:           #Fill in your `if` statement here!
            return 'False' #Make sure this function returns `False`

有人能帮我理解我哪里错了吗？

Answer 1

True并且False是对象(或变量,常量,软关键字,或任何您想要调用的对象).它们不是字符串.

return True

您的第二个函数也使用了错误条件,因此if块的内容将永远不会运行.它会从结束时掉下来然后返回None.