* @method insert(input, toNewParagraph) * 向编辑器中插入内容/HTML代码/元素等 * insert html or element to content element * @param input `string | HTMLEleme

* @method getHtml(retainLastBlankLines) * 获取编辑器中的HTML代码，会自动去除结尾处的空行。 * get html string from content element. * @param retainLastBlankLines? `

* @method getCursorElement(isOnlyEditorChild) * 获取光标所在的元素 * Get the element where the cursor is located * @param isOnlyEditorChild? `boolean`

* * @param needOtherDocs `boolean` * @returns

* @method changeStyles(styles, value) * 修改光标所在元素的样式 * Change the style of the element where the cursor is located * @param styles? `CSSPrope

* @method emit(eventName, arg1, arg2, ..., argN) * `emit` is used to trigger an event. * @param eventName `string` * @param args `any` * @

* insert element to content element * @param input * @private

* @method changeNodeName(nodeName) * 修改光标所在元素的标签 * Replace the tag of the element under the cursor * @param nodeName? `string` allowed elemen

* @method getStyles() * 获取光标所在的元素的`style`对象 * Get the `style` object of the element where the cursor is located * @return `CSSProperties`

* @method on(eventName, fn) * `on` is used to add a callback function that's going to be executed when the event is triggered. * @param eventNam

* 分派事件

* @method use(plugin, parentElement) * extension, 扩展插件 * @param plugin `EditorPlugin` * @param parentElement? `HTMLElement`

* 验证编辑器的子元素是否为允许使用的元素，并检查其最后一段是否为空行，非空行则插入。 * Verify that the editor's child element is an allowed elements, and check if it's last child is a blan

* add button * @param params * @param index Insert index