python公共变量_Python中的公共变量

- 日理万妓 2023-03-05 09:55 8阅读 0赞

python公共变量

By default all numbers, methods, variables of the class are public in the Python programming language; we can access them outside of the class using the object name.

默认情况下，该类的所有数字，方法和变量在Python编程语言中都是公共的。 我们可以使用对象名称在类外部访问它们。

**Consider the given example:**

**考虑给定的示例：**

Here, we have two variables name and age both are initializing with default values (**"XYZ"** and **0**) while declaring the object using \_\_init\_\_ method.

在这里，我们有两个变量name和age都使用默认值( **“ XYZ”**和**0** )初始化，同时使用\_\_init\_\_方法声明对象。

Later, in the program, outside of the class definition – we are assigning some values (**"Amit"** and **21**) to name and age, that is possible only if variables are public.

后来，在程序中，在类定义之外–我们为name和age分配了一些值( **“ Amit”**和**21** )，只有在变量为public的情况下才可能。

**Example:**

**例：**

# Python example for public variables 
    class person:
    	def __init__(self):
    		# default values
    		self.name = "XYZ"
    		self.age = 0
    
    	def printValues(self):
    		print "Name: ",self.name 
    		print "Age : ",self.age
    
    # Main code 
    # declare object 
    p = person()
    # print
    p.printValues();
    
    # since variables are public by default 
    # we can access them directly here 
    p.name = "Amit"
    p.age = 21
    # print
    p.printValues ();

**Output**

**输出量**

Name:  XYZ
    Age :  0
    Name:  Amit
    Age :  21

> 翻译自: [https://www.includehelp.com/python/public-variables.aspx][https_www.includehelp.com_python_public-variables.aspx]

python公共变量

[https_www.includehelp.com_python_public-variables.aspx]: https://www.includehelp.com/python/public-variables.aspx