python類的定義和使用 python類的定義?
python類的定義?在Python編程中,類定義的代碼如下:class< class name>:< statement>類定義的特殊方法:inituuuuuu構(gòu)造函數(shù),在生成對(duì)象時(shí)
python類的定義?
在Python編程中,類定義的代碼如下:
class< class name>:< statement>類定義的特殊方法:
inituuuuuu構(gòu)造函數(shù),在生成對(duì)象時(shí)調(diào)用uuuu deluuuu析構(gòu)函數(shù),在釋放對(duì)象時(shí)使用uuuuuu repruuuuuuuu Print,convert_uuuuiItem_uuuuuuuuuuuuu按索引賦值uuuuuuuuItem_uuuuuuuuuuu按索引獲取值uuuuuuuuLenuuuuuuuuuu獲取長(zhǎng)度uuuucmpuuuuuuuuuuuuuuuuuuuu比較運(yùn)算uuuuuuuuuu調(diào)用uuuuuuuuuuuu函數(shù)調(diào)用uuuuuuuuuuuuuuuuu加法運(yùn)算uuuuuuuuuuuuuuuuuuuuuu減法uuuuuuuuuuuuuuuuuuuuuu乘法uuuuuuuuuuuuuuudefinition basic attribute name=“”age=0#definition private attribute,不能在類uuuuuuuuuuweight=0之外直接訪問#定義構(gòu)造方法def uuuuuuuiit(self,n,a,w):姓名=n個(gè)自我年齡=a self.uuuweight=w def speak(self):打印(%s)正在講話:我是%d歲“%(姓名, 自我年齡))p=people(“tom”,10,30)p.簡(jiǎn)單地說,類是一個(gè)高級(jí)抽象,一個(gè)高級(jí)數(shù)據(jù)類型,一個(gè)對(duì)象的藍(lán)圖,用來定義你想要使用的對(duì)象的屬性和行為。為什么要用課堂?您可以將它與以前沒有類的時(shí)候進(jìn)行比較,例如與結(jié)構(gòu)化編程進(jìn)行比較。上課有什么好處?總結(jié)就是封裝、繼承和多類狀態(tài),這些對(duì)你自己的理解,越先進(jìn)越抽象,越貼近人們的思維,越容易理解和使用,慢慢體會(huì)