Python基础：类

Python 3.8.0

1. 类的定义

class CharacterBase: 			#定义类
	'角色的基类'					#类注释，可选
	pCount = 0					#静态成员
	def __init__(self,name):	#构造函数
		self.name = name
		pCount += 1
	
	def __del__(self):			#析构函数
		pCount -= 1			
	
	def __str__(self):			#相当于C#的ToString()
		return 'Base class of characters'
	
	def say_something(self,msg):
		print(self.name + " said: " + str(msg))

2.实例化

tom = CharacterBase("Tom")
tom.say_something("hello")

输出结果

Tom said: hello

3.类的继承

class Ninja(CharacterBase):#继承基类
	def say_something(self,msg):
		print("Ninja " + self.name + " said: " + str(msg))

ryo = Ninja("Ryo")
ryo.say_something("hello")

输出结果

Ninja Ryo said: hello