python 示例

Python类关键字 (Python class keyword)

class is a keyword (case-sensitive) in python, it is used to define a class, when we need to define a class, before the class name - we must have to use class keyword.

class是python中的一个关键字(区分大小写)，用于定义一个类，当我们需要定义一个类时，在类名之前-我们必须使用class keyword 。

Syntax of class keyword

类关键字的语法

    class class_name:
class definition statements;

Example:

例：

    Input:
# an empty class
class sample:
pass
# printing its type
print("type of class: ", type(sample))
Output:
type of class:  <class 'type'>

类关键字的Python示例 (Python examples of class keyword)

Example 1: Define an empty class using pass statement and print its type

示例1：使用pass语句定义一个空类并打印其类型

# python code to demonstrate example of 
# class keyword 
# an empty class
class sample:
pass
# main code
# printing it's type 
print("type of class: ", type(sample))

Output

输出量

type of class:  <class 'type'>

Example 2: Define a class student and assign values and print

示例2：定义班级学生并分配值并打印

# python code to demonstrate example of 
# class keyword 
# student class code in Python
# class definition
class Student:
__id=0
__name=""
__course=""
# function to set data 
def setData(self,id,name,course):
self.__id=id
self.__name = name
self.__course = course
# function to get/print data
def showData(self):
print("Id\t:",self.__id)
print("Name\t:", self.__name)
print("Course\t:", self.__course)
# main function definition
def main():
#Student class Object
std=Student()
std.setData(1,'Manju','M. Com.')
std.showData()
if __name__=="__main__":
main()

Output

输出量

Id      : 1
Name    : Manju
Course  : M. Com.

翻译自: https://www.includehelp.com/python/class-keyword-with-example.aspx

python 示例