WindowsFormsApplication1.rar

输入两个点经纬度坐标，计算出两点之间距离（公里） /// <summary> /// 计算距离 /// </summary> /// <param name="sender"></param> /// <param name="e"></param> private void button2_Click(object sender, EventArgs e) { try { textBox9.Text= getDistant(getPointDegree(point1Lat.Text), getPointDegree(point1Lng.Text), getPointDegree(point2Lat.Text), getPointDegree(point2Lng.Text)).ToString(); } catch (Exception ex) { //异常处理:弹出 MessageBox.Show(ex.Message); } }