一个基于jQuery 的网页加载进度条插件，版本目前是 v1.2，具有动画效果的进度条，可以用作网络连接、上传或下载程序中，进度条很漂亮。 -JQuery based on the progress bar of the page to load plug-in, version is now v1.2, with the progress bar animation effects, can be used as a network connection, upload or downlo