获取“'元组'对象没有属性'周长'？”答案

【问题标题】：Getting "'tuple' object has no attribute 'perimetre'?"获取“'元组'对象没有属性'周长'？”
【发布时间】：2022-01-20 04:01:24
【问题描述】：

如何解决问题？我试试：

class plot():
    def __init__(self,length,width):
    self.length = length
    self.width = width
    
    def area(self):
    print("area is ",self.length*self.width)
    
    def perimetre(self):
    per = 2(self.length+self.width)
    print("perimeter is ",per)
a1 , p1 = plot(10,20),(10,20)

a1.area()
p1.perimetre()

得到了这个错误：

<>:10: SyntaxWarning: 'int' object is not callable; perhaps you missed a comma? 
<>:10: SyntaxWarning: 'int' object is not callable; perhaps you missed a comma? <ipython-input-83-8515c6a74849>:10: SyntaxWarning: 'int' object is not callable; perhaps you missed a comma?
   per = 2(self.length + self.width)
 --------------------------------------------------------------------------- AttributeError
 Traceback (most recent call last)
  <ipython-input-83-8515c6a74849> in <module>
      13 
      14 a1.area()
 ---> 15 p1.perimetre()
 
 AttributeError: 'tuple' object has no attribute 'perimetre'

【问题讨论】：

正确格式化代码。使用正确的代码格式来包含堆栈跟踪。

标签： python attributes tuples attributeerror

【解决方案1】：

将a1, p1 = plot(10,20),(10,20) 更改为a1, p1 = plot(10,20), plot(10,20)。您正在为a1 实例化一个plot，但随后您只使用括号为p1 实例化一个元组。

这里的代码per = 2(self.length+self.width) 也是无效的。您正在尝试调用2，就像它是一个函数一样。

【讨论】：