c# 封装“度分秒”与弧度之间的转换 以及datagridview控件的应用

代码：

datagridview   计算

 private void button1_Click(object sender, EventArgs e)

 

        {
            string[] sd = new string[dataGridView1.RowCount];//新建一个字符串数组存放观测角度的原始值
            double[] sdr = new double[dataGridView1.RowCount];//新建一个双精度的数组存放观测角度的弧度值
            double[] cr= new double[dataGridView1.RowCount];//新建一个双精度的数组存放计算的坐标方位角
            double sum = 0;
            cr[0] = dmstorad(Convert.ToString(dataGridView1.Rows[0].Cells[2].Value));
            //获取第一个坐标方位角，并将其转换成弧度，放入cr[]数组第一个元素中
            dataGridView1.Rows[dataGridView1.RowCount - 1].Cells[0].Value = "总和";
                for(int i=1;i<dataGridView1.RowCount-2;i++)//从第二行开始循环计算 观测角度累加值 坐标方位角 直到倒数第三行
                {
                sd[i]=Convert .ToString (dataGridView1.Rows[i].Cells[1].Value);//获取观测角度的原始值，并放入sd[]数组中
                    sdr[i]=dmstorad(sd[i]);//将观测角度的原始值转换成弧度值
                    sum+=sdr[i];
                    cr[i]=cr[i-1]+sdr[i]-Math .PI;//计算坐标方位角
                    if(cr[i]>=Math .PI *2)
                    { cr[i]-=Math .PI *2;}
                    else if (cr[i]<0.0)
                    {cr[i]+=Math .PI *2;}
                    dataGridView1.Rows[i].Cells[2].Value =radtodms (cr[i]);//将计算出来的坐标方位角赋值给对应的表格元素
                }
            dataGridView1.Rows[dataGridView1.RowCount-1].Cells [1].Value =radtodms (sum);
        

}

  //封装角度转弧度

        public double dmstorad(string s)
        {
            string[] ss = s.Split(new char[3] { '°', '′', '″' }, StringSplitOptions.RemoveEmptyEntries);//分割字符串，删除空字符
            double[] d = new double[ss.Length];//新建一个双精度的数值数组
            for (int i = 0; i < d.Length; i++)
                d[i] = Convert.ToDouble(ss[i]);//将度分秒存入双精度的数值数组中
            double sign = d[0] >= 0.0 ? 1.0 : -1.0;//判断正负
            double rad = 0;
            if (d.Length == 1)//根据数组长度进行判断计算
                rad = (Math.Abs(d[0]) )* Math.PI / 180;//将度取绝对值，并转换成弧度
            else if (d.Length == 2)
                rad = ((Math.Abs(d[0])) + d[1] / 60) * Math.PI / 180;
            else
                rad = ((Math.Abs(d[0])) + d[1] / 60 + d[2] / 60 / 60) * Math.PI / 180;
            rad = sign * rad;//弧度前边添加正负号
            return rad;//返回弧度值
        }


  //弧度转角度
        public string radtodms(double rad)
        {
            double sign = rad >= 0.0 ? 1.0 : -1.0;//判断正负
            rad = Math.Abs(rad) * 180 / Math.PI;//将弧度取绝对值并转化为度
            double[] d = new double[3];//新建一个长度为3的数组
            d[0] = (int)rad;//取整获取度
            d[1] = (int)((rad - d[0]) * 60);//取整获取分
            d[2] = (rad - d[0] - d[1] / 60) * 60 * 60;//获取秒不取整
            d[2] = Math.Round(d[2], 2);//将秒保留两位小数
            if (d[2] == 60)
            {
                d[1] += 1;
                d[2] -= 60;
                if (d[1] == 60)
                {
                    d[0] += 1;
                    d[1] -= 60;
                }
            }
            d[0] = sign * d[0];//度前添加正负号
            string s = Convert.ToString(d[0]) + "°" + Convert.ToString(d[1]) + "′" + Convert.ToString(d[2]) + "″";
            //将度分秒赋值给文本框，并添加°′″
            return s;
        }

退出：

        private void button2_Click(object sender, EventArgs e)
        {
            Application.Exit();
        }