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//作业（1） using System; using System.Collections.Generic; using System.Linq; using System.Text; using System.Threading.Tasks; namespace myfirstcsproj { class Program { static void Main(string[] args) { float capital; float rate; int years; Console.Write("按Q键退出，按其他键继续："); while (Console.ReadKey().KeyChar != 'Q') { Console.WriteLine(""); Console.Write("请输入本金："); capital = float.Parse(Console.ReadLine()); Console.Write("请输入利率："); rate = float.Parse(Console.ReadLine()); Console.Write("请输入存款年限："); years = int.Parse(Console.ReadLine()); Console.WriteLine("本息总计:{0:0.00}",capital *rate*years+capital); Console.Write("按Q键继续，按其他键退出："); } } } } //作业（2） public class Circle2D { public double X, Y; public double Radius; public Circle2D() { X = 0;Y = 0;Radius = 1; } public Circle2D(double x,double y,double r) { X = x; Y = y; Radius = r; } public double Area { get { return Radius * 3.14; } } public double Perimeter { get { return Radius * 3.14 * 2; } } public bool Contains(double x,double y) { if(Math.Sqrt((x-X)*(x-X)+(y-Y)*(y-Y))>=Radius) return false; return true; } public bool Contains(Circle2D circle) { double dist;//两圆点的距离 dist = Math.Sqrt(Math.Pow(X - circle.X, 2) + Math.Pow(Y - circle.Y, 2)); if (dist + circle.Radius > Radius) return false; return true; } public bool Overlaps(Circle2D circle) { double dist; dist = Math.Sqrt(Math.Pow(X - circle.X, 2) + Math.Pow(Y - circle.Y, 2)); if (dist >= Radius + circle.Radius) return false; return true; } }
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