AttributeError: 'tuple' 对象没有属性 [英] AttributeError: 'tuple' object has no attribute

问题描述

我是 Python 的初学者.我无法理解问题出在哪里?

I'm a beginner in python. I'm not able to understand what the problem is?

def list_benefits():

        s1 = "More organized code"
        s2 = "More readable code"
        s3 = "Easier code reuse"
        s4 = "Allowing programmers to share and connect code together"
        return s1,s2,s3,s4

def build_sentence():

        obj=list_benefits()
        print obj.s1 + " is a benefit of functions!"
        print obj.s2 + " is a benefit of functions!"
        print obj.s3 + " is a benefit of functions!"

print build_sentence()

我得到的错误是:

Traceback (most recent call last):
   Line 15, in <module>
   print build_sentence()
   Line 11, in build_sentence
   print obj.s1 + " is a benefit of functions!"
AttributeError: 'tuple' object has no attribute 's1'

推荐答案

您返回四个变量 s1,s2,s3,s4 并使用单个变量 obj 接收它们.这就是所谓的 tuple，obj 与 4 个值相关联，s1,s2,s3,s4 的值.因此，请像在列表中一样使用索引来按顺序获取所需的值.

You return four variables s1,s2,s3,s4 and receive them using a single variable obj. This is what is called a tuple, obj is associated with 4 values, the values of s1,s2,s3,s4. So, use index as you use in a list to get the value you want, in order.

obj=list_benefits()
print obj[0] + " is a benefit of functions!"
print obj[1] + " is a benefit of functions!"
print obj[2] + " is a benefit of functions!"
print obj[3] + " is a benefit of functions!"

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