仅是项目符号，您应该可以使用JavaScript进行添加.在文本框的OnChange或Onblurr上，使用Javascript将项目符号添加到文本中. Textarea可以有子弹.

如果需要丰富的文本框功能，则需要使用 HtmlEditor [ ^ ]

Just for bullet, you should be able to add that using JavaScript. OnChange or Onblurr of the textbox, add the bullet to the text using Javascript. Textarea can have bullets.

If you need rich textbox kind of features then you need to use HtmlEditor[^]