C#程序设计(5-1)
来源:百度知道 编辑:UC知道 时间:2024/05/15 00:28:26
using System;
using System.Collections.Generic;
using System.Text;
namespace CircleArea
{
class Program
{
static void Main(string[] args)
{
loop:
Console.Write("输入圆半径:");
string str = Console.ReadLine();
double r = 0;
try
{
r = Convert.ToDouble(str);
Circle circle = new Circle();
circle.R = r;
double area = circle.Area();
Console.WriteLine("圆的面积是:{0}", area);
Console.Write("键入Y继续,其它键退出?");
string s = Console.ReadLine();
if (s.ToLower() == "y")
{
goto loop;
}
}
catch
{
Conso