三角形面积计算器（海伦公式）

2012年苏州大学人机交互课程课题作业 海伦公式 输入三边计算出三角形面积 同时形成该三角形

using System;
using System.Collections.Generic;
using System.Collections;
using System.ComponentModel;
using System.Data;
using System.Drawing;
//using System.Linq;
using System.Text;
using System.Windows.Forms;
using System.Text.Regularexpressions;

namespace WindowsFormsApplication1                                               //海伦公式
{                                                                                //by 邱泽华0927403113
    public partial class 海伦公式 : Form
    {
        public 海伦公式（）
        {
            InitializeComponent（）;
        }
        public Form2 frm;


        int n = 0;
        double a b c p s aa bb cc;
        Graphics g = null;                                                        //初始化
        string abc;

        //public static bool IsNumeric（string value）
        //{
        //    return Regex.IsMatch（value @“^[+-]?\d*[.]?\d*$“）;
        //}


        private void texta_TextChanged（object sender EventArgs e）

 属性            大小     日期    时间   名称
----------- ---------  ---------- -----  ----

     文件      28672  2012-02-27 14:49  WindowsApplication1\WindowsApplication1\bin\Debug\WindowsApplication1.exe

     文件      38400  2012-02-27 14:49  WindowsApplication1\WindowsApplication1\bin\Debug\WindowsApplication1.pdb

     文件       5632  2005-12-08 14:51  WindowsApplication1\WindowsApplication1\bin\Debug\WindowsApplication1.vshost.exe

     文件      10305  2012-02-27 14:49  WindowsApplication1\WindowsApplication1\Form1.cs

     文件       9484  2012-02-27 14:10  WindowsApplication1\WindowsApplication1\Form1.Designer.cs

     文件       5817  2012-02-27 14:10  WindowsApplication1\WindowsApplication1\Form1.resx

     文件       2344  2012-03-07 08:57  WindowsApplication1\WindowsApplication1\Form2.cs

     文件       1999  2012-02-27 14:10  WindowsApplication1\WindowsApplication1\Form2.designer.cs

     文件       5817  2012-02-27 14:10  WindowsApplication1\WindowsApplication1\Form2.resx

     文件        900  2012-02-27 14:12  WindowsApplication1\WindowsApplication1\obj\Debug\WindowsApplication1.csproj.GenerateResource.Cache

     文件      28672  2012-02-27 14:49  WindowsApplication1\WindowsApplication1\obj\Debug\WindowsApplication1.exe

     文件      38400  2012-02-27 14:49  WindowsApplication1\WindowsApplication1\obj\Debug\WindowsApplication1.pdb

     文件        180  2012-02-27 14:12  WindowsApplication1\WindowsApplication1\obj\Debug\WindowsApplication1.Properties.Resources.resources

     文件        180  2012-02-27 14:12  WindowsApplication1\WindowsApplication1\obj\Debug\WindowsFormsApplication1.Form2.resources

     文件        180  2012-02-27 14:12  WindowsApplication1\WindowsApplication1\obj\Debug\WindowsFormsApplication1.海伦公式.resources

     文件       1505  2012-02-27 14:50  WindowsApplication1\WindowsApplication1\obj\WindowsApplication1.csproj.FileListAbsolute.txt

     文件        514  2012-02-27 14:14  WindowsApplication1\WindowsApplication1\Program.cs

     文件       1210  2012-02-27 14:09  WindowsApplication1\WindowsApplication1\Properties\AssemblyInfo.cs

     文件       2894  2012-02-27 14:09  WindowsApplication1\WindowsApplication1\Properties\Resources.Designer.cs

     文件       5612  2012-02-27 14:09  WindowsApplication1\WindowsApplication1\Properties\Resources.resx

     文件       1104  2012-02-27 14:09  WindowsApplication1\WindowsApplication1\Properties\Settings.Designer.cs

     文件        249  2012-02-27 14:09  WindowsApplication1\WindowsApplication1\Properties\Settings.settings

     文件       3584  2012-02-27 14:12  WindowsApplication1\WindowsApplication1\WindowsApplication1.csproj

     文件        946  2012-02-27 14:09  WindowsApplication1\WindowsApplication1.sln

    ..A..H.     17920  2012-02-27 14:50  WindowsApplication1\WindowsApplication1.suo

     目录          0  2012-02-27 14:09  WindowsApplication1\WindowsApplication1\obj\Debug\TempPE

     目录          0  2012-02-27 14:14  WindowsApplication1\WindowsApplication1\bin\Debug

     目录          0  2012-02-27 14:49  WindowsApplication1\WindowsApplication1\obj\Debug

     目录          0  2012-02-27 14:09  WindowsApplication1\WindowsApplication1\bin

     目录          0  2012-02-27 14:12  WindowsApplication1\WindowsApplication1\obj

............此处省略6个文件信息