python設計一個名為stock的類

⑴ python定義一個Dog類，實例化兩個小狗對象。類屬性有名字，顏色，體重。實現以下描述

程序寫給你

classdogClass():

def__init__(self,name,color,weight):

self.name=name

self.color=color

self.weight=weight

def__del__(self):

self.name=""

self.color=""

self.weight=""

defname(self):

returnself.name

defcolor(self):

returnself.color

defweight(self):

returnself.weight

a=dogClass("旺財","棕色","5斤")

b=dogClass("來福","黑色","8斤")

print("小狗名字叫",a.name,"，顏色是",a.color,"，體重",a.weight)

print("小狗名字叫",b.name,"，顏色是",b.color,"，體重",b.weight)

執行結果：

⑵ 編寫一個類Stock表示股票,成員變數有： string型symbol,表示股票代碼. String型name,表示股票名稱. double

private String symbol;//string型symbol,表示股票代碼.
private String name;//String型name,表示股票名稱.
private double previousClosingPrice;//double型previousClosingPrice,表示上期收盤價
private double currentPrice;//double型currentPrice,表示當前價格.
//下列為Set和get方法
public String getSymbol() {
return symbol;
}
public void setSymbol(String symbol) {
this.symbol = symbol;
}
public String getName() {
return name;
}
public void setNameString(String nameString) {
this.name = nameString;
}
public double getPreviousClosingPrice() {
return previousClosingPrice;
}
public void setPreviousClosingPrice(double previousClosingPrice) {
this.previousClosingPrice = previousClosingPrice;
}
public double getCurrentPrice() {
return currentPrice;
}
public void setCurrentPrice(double currentPrice) {
this.currentPrice = currentPrice;
}
//Stock(String symbol,String name),用來創建股票對象
Stock(String symbol,String name,double previousClosingPrice,double currentPrice) {
this.symbol = symbol;
this.name = name;
this.previousClosingPrice = previousClosingPrice;
this.currentPrice = currentPrice;
}

double changePercent(){
return (currentPrice - previousClosingPrice) /previousClosingPrice;
}

public static void main(String[] args){
Stock stock = new Stock("IBM", "Intermational Business Manufacture Inc",176 , 153);
System.out.println(stock.name+"股票本月同比上月上漲"+stock.changePercent()+"個百分點！");
}

我也是學生啊 可以進行技術交流哦 希望這能幫助到你....