jQuery实现固定表头，而让表格数据滚动的效果，当你拖动滚动条的时候，表头固定不动，而表格的各行内容从表头向上开始随拖动条而滚动，这样在显示用户浏览数据的时候，始终可以看到表头和表格内容的对应，使数据展现更清淅，利于用户体验的提升。-jQuery to achieve a fixed header, and let the tabular data scrolling effect, when you drag the scroll bar when the header is fixed, and the table of contents of each line up with the drag strip and start rolling　the header, so show the user browse data, you can always see the head table and the table of contents of the correspondence, so that the data show a more clear mission, which will help to enhance the user experience.