$('table').dataTable({
    // display everything
    "iDisplayLength": -1
});

你可以做什么

oTable = $('table').dataTable({
    // display everything
    "iDisplayLength": -1
});

oTable.fnSort( [ [0,'desc'] ] ); // Sort by first column descending

但是如下面的评论所指出的那样，这可能是一个更干净的方法：

$('table').dataTable({
    // display everything
    "iDisplayLength": -1,"aaSorting": [[ 0,"desc" ]] // Sort by first column descending
});