private void richTextBox1_TextChanged(object sender, EventArgs e)
{
//richTextBoxRecieve.SelectionStart = richTextBoxRecieve.Text.Length;
//richTextBoxRecieve.SelectionLength = 0;
//richTextBoxRecieve.Focus();
}
垂直滚动条始终在RichTextBox的底部
你需要设置HideSelection 为 false 并且用 AppendText来插入新数据
例如richTextBox.AppendText("内容");