你可以使用 CLEDITOR 非常轻量级。您可以禁用所有工具栏按钮并隐藏工具栏。除此之外，它还允许您使用键盘快捷键（CTRL + B / CTRL + I）进行粗体/斜体选择，即使工具栏不存在也是如此。

You can use CLEDITOR which is very lightweight. You can disable all the toolbar buttons and hide the toolbar as well. In addition to this, it lets you make the selection bold/italic using keyboard shortcuts (CTRL+B/CTRL+I) even though the toolbar does not exist.

演示： http://jsfiddle.net/Rft3A/