C#计算三角形面积

c#计算三角形面积

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;

namespace _3_2
{
    class Program
    {
        class Triangle
        {
            public int a, b, c;
            public double  getArea(int a,int b,int c)
            {
                float p = (a + b + c) / 2;
                double s = Math.Sqrt(p * (p - a) * (p - b) * (p - c));
                return s;
            }
        }
        static void Main(string[] args)
        {
            Triangle tr = new Triangle();
            Console.WriteLine("三角形的面积为：{0}", tr.getArea(3, 4, 5));
            Console.ReadKey();
        }
    }
}