c# richTextBox1添加内容并将滚动条滚动到当前焦点处

1.   StringBuilder sb = new StringBuilder();

StringBuilder的改变比string快多了

2. sb.Append("\r\n");  //向stringbuilder中添加内容

3.

richTextBox1output.AppendText(sb.ToString());//https://zhidao.baidu.com/question/84734305.html

向winform自带控件richtextbox中最后一行追加内容。

4.  richTextBox1output.ScrollToCaret();//将滚动条滚动到当前焦点处

5.sb.Remove(0, sb.Length);//清除stringbuilder中内容

using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using System.Windows.Forms;

namespace WindowsFormsApplication1output
{
    public partial class Form1 : Form
    {
        public Form1()
        {
            InitializeComponent();
        }

        private void button1output_Click(object sender, EventArgs e)
        {
            StringBuilder sb = new StringBuilder();
            double[,] matrix=new double[,];
            for (int i = ; i < ; i++)
            {
                for (int j = ; j < ; j++)
                {
                    matrix[i, j] = i + j;

                }
            }

            for (int i = ; i < ; i++)
            {
                for (int j = ; j < ; j++)
                {
                   sb.Append(matrix[i,j]);
                   sb.Append("\t");
                }

                sb.Append("\r\n");
                //richEditControl1output.Text = sb.ToString();
                //richEditControl1output.ScrollToCaret(0.5f);
                richTextBox1output.AppendText(sb.ToString());//https://zhidao.baidu.com/question/84734305.html
                //richTextBox1output.Text += sb.ToString();
                richTextBox1output.ScrollToCaret();
                sb.Remove(, sb.Length);
            }

        }
    }
}