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Circle 类，有
成 员 函 数
grow(int years) 对
请输入年份：5
Radius(半径)
ages 加上 years
该树年龄为：10
GetValue()用来给
age()显示对象的数
3. 声明一个名为
Rectangle 的矩
形类，其属性为矩形的左下角和
GetArea()计算圆的
tree(int n=0)进行初
右上角两点的坐标，并有成员函
数计算矩形的周长及面积。编程
在主函数中创建一个
Circle 类的
在主函数中创建一个
tree 类的对
实现求左下角与右上角坐标分别
对象进行测试，显示出面积。
象进行测试（创建一个树龄为
为（2.1，3.2），（5.2，6.3）的
的对象，调用
age()显示树龄，之
矩形周长及面积。
grow（4），生长
class circle
显示树龄）。
class Rectangle
class tree
void getvalue()
SetPoint(double
l,double b,double r,double t)
double getarea()
void grow(int years);
void age();
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ATM Progress Over 20 Years In China
As the major factories have improved technologies and enhanced security methods constantly, such as guards against peeps by the rear view mirror, the encryption keyboard, the intettigent.and etc. Furthermore, combined with remote monitor system, the security of ATM increased unprecedented.
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我有更好的回答：
剩余:2000字
与《7.定义一个tree类,包括成员ages.成员函数grow（int years）对ages加上years,age（）显示》相关的作业问题
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