python设计一个名为stock的类

⑴ python定义一个Dog类，实例化两个小狗对象。类属性有名字，颜色，体重。实现以下描述

程序写给你

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("旺财","棕色","5斤")

b=dogClass("来福","黑色","8斤")

print("小狗名字叫",a.name,"，颜色是",a.color,"，体重",a.weight)

print("小狗名字叫",b.name,"，颜色是",b.color,"，体重",b.weight)

执行结果：

⑵ 编写一个类Stock表示股票,成员变量有： string型symbol,表示股票代码. String型name,表示股票名称. double

private String symbol;//string型symbol,表示股票代码.
private String name;//String型name,表示股票名称.
private double previousClosingPrice;//double型previousClosingPrice,表示上期收盘价
private double currentPrice;//double型currentPrice,表示当前价格.
//下列为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),用来创建股票对象
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涨"+stock.changePercent()+"个百分点！");
}

我也是学生啊 可以进行技术交流哦 希望这能帮助到你....