python 类中静态变量_Python中的类或静态变量

た入场券 2023-03-05 11:59 22阅读 0赞

python 类中静态变量

## Python类/静态变量 **(**Python Class / Static Variables**)** ##

**Class or Static variables** are class-related variables that are shared among all objects but the instance or non-static variable is unique for each object. In Python, there is no need for the keyword static to make a class variable but the static keyword is used to make a class or static variables in other programming languages like C++, C, Java, etc. The variable defined on the class level that is declared inside the class but outside any method in Python is static.

**类或静态变量**是在所有对象之间共享的与类相关的变量，但是实例或非静态变量对于每个对象都是唯一的。 在Python中，不需要使用关键字static来创建类变量，而是使用static关键字来创建类或其他编程语言(例如C ++，C，Java等)中的静态变量。在类级别定义的变量在类内部声明，但在Python中的任何方法外部都是静态的。

Let's look at an example for a better understanding of the static variable that returns some details about the intern of "includehelp" in Python.

让我们看一个示例，以更好地理解静态变量，该变量返回有关Python中“ includehelp”的内部实习生的一些详细信息。

**Example for the class or static variable**

**类或静态变量的示例**

# class definition
    class intern:
        site_name='Includehelp'
        field='Technical content writer'
        
        def __init__(self,name,programming_language):
            self.name=name
            self.programming_language=programming_language
    
    # object of the intern class
    x = intern('Bipin Kumar','Python') 
    
    # printing the variables values
    print('Site name: ',x.site_name)
    print('Field of interest: ',x.field)
    print('Name of intern: ',x.name)
    print('Language: ',x.programming_language)

**Output**

**输出量**

Site name:  Includehelp
    Field of interest:  Technical content writer
    Name of intern:  Bipin Kumar
    Language:  Python

**Explanation:**

**说明：**

In the above example, site\_name and field is a **class or static variable** which is declared inside the class "intern" but outside of the \_\_init\_\_ method and name and programming\_language are instance variables. Here, x is the object of the class "intern" which has two arguments, one is the name of an intern and another one is the programming language.

在上面的示例中， site\_name和field是一个**类或静态变量** ，在类“ intern”内声明，但在\_\_init\_\_方法之外，并且name和programming\_language是实例变量。 在此， x是“ intern”类的对象，该类具有两个参数，一个是实习生的名称，另一个是编程语言。

> 翻译自: [https://www.includehelp.com/python/class-or-static-variables.aspx][https_www.includehelp.com_python_class-or-static-variables.aspx]

python 类中静态变量

[https_www.includehelp.com_python_class-or-static-variables.aspx]: https://www.includehelp.com/python/class-or-static-variables.aspx