效果图:
原理:在所有要丢失精度的小数位中加5,大于10进位
代码:
using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Linq;
using System.Text;
using System.Windows.Forms;
namespace Example48
{
public partial class Form1 : Form
{
public Form1()
{
InitializeComponent();
}
private void button1_Click(object sender, EventArgs e)
{
double P_dbl_value1, P_dbl_value2;
if (double.TryParse(textBox1.Text, out P_dbl_value1) &&
double.TryParse(textBox2.Text, out P_dbl_value2))
{
textBox3.Text = Math.Round(P_dbl_value1 + P_dbl_value2, comboBox1.SelectedIndex + 1).ToString();
}
}
}
}