Manual:Live preview/zh

实时预览是MediaWiki的一项用以预览的功能，它可以在不重新加载原有HTML代码的情况下显示条目或章节的预览.

It has some bugs, see live preview tracking bug for an up to date list.

启用实时预览
实时预览的启用与否取决于LocalSettings.php中的$wgLivePreview变量. 要激活该功能，你还需要在“我的参数设置”的“编辑”中予以开启.

优点

 * 传入流量更少：不会再次从服务器获取wiki代码和所有菜单，
 * 响应时间更短，
 * 编辑窗体中的光标位置不变.

缺点：

只更新预览区域，这意味着：


 * scripts are not executed if they do not use the  hook.
 * some parts of the interface like interlanguage links, transclusion list etc might not be updated correctly.
 * navigating in the browser history – with the preview – no longer works

技术细节
A live preview makes use of the Parse API and the -option of the Revisions API, to submit the new version of the text in order to receive parsed preview or diff changeset in the Edit page.


 * Implementation