“'布尔'对象不可调用”的含义?

时间:2019-10-09 16:27:34

标签: python class object syntax-error object-oriented-analysis

当我尝试运行函数'iswalking()'时出现此错误

我正在尝试学习OOPs概念,到目前为止,这是我创建的...

class Human:
    def __init__(self,name,age,gender):
        self.name = name 
        self.age=age
        self.gender= gender
    def iswalking(self,TOF):
        self.TOF = TOF
        if TOF:
            print("walking")
        else:
            print("sitting")
    def introduce_self(self):
        print("my name is ",self.name)
        print("my age is ",self.age)
        print("my gender is ",self.gender)

h1=Human("Armaan",16,"male")
h1.iswalking=False
h1.introduce_self()
h1.iswalking()

我希望输出:

my name is  Armaan                                                                                                                     
my age is  16                                                                                                                          
my gender is  male 

sitting

我能得到什么:

my name is  Armaan                                                                                                                     
my age is  16                                                                                                                          
my gender is  male                                                                                                                     
Traceback (most recent call last):                                                                                                     
  File "main.py", line 19, in <module>                                                                                                 
    h1.iswalking()                                                                                                                     
TypeError: 'bool' object is not callable                                                                                               


...Program finished with exit code 1                                                                                                   
Press ENTER to exit console.

2 个答案:

答案 0 :(得分:2)

您已经将一个函数重新分配给一个布尔值,然后尝试以为它仍然是一个函数的方式调用该布尔值。

相反,您需要这样做:

class Human:
    def __init__(self,name,age,gender):
        self.name = name 
        self.age=age
        self.gender= gender
    def is_walking(self):
        if self.iswalking:
            print("walking")
        else:
            print("sitting")
    def introduce_self(self):
        print("my name is ",self.name)
        print("my age is ",self.age)
        print("my gender is ",self.gender)

h1=Human("Armaan",16,"male")
h1.iswalking=False
h1.introduce_self()
h1.iswalking()

这避免了重新分配功能。

答案 1 :(得分:0)

h1=Human("Armaan",16,"male")
h1.iswalking=False # first 
h1.introduce_self()
h1.iswalking()     # second

在第一行中,您已将属性iswalking更改为False-这是一个布尔值。

在第二行中,您尝试呼叫设置为iswalking =的False-因此,您尝试呼叫FalseFalse()-这会引发您所看到的错误。

我相信您想这样做:

h1.iswalking(False)

应该打印:

sitting