说明：[ 1  ->  0 ]，代表本节点序号是1，其父节点序号是0，level 0代表本节点是最顶层节点。

[ 1  ->  0 ] level 0 MXML_ELEMENT [?xml version="1.0" encoding="GBK" ?]
[ 2  ->  1 ] level 1 MXML_OPAQUE [
]
[ 3  ->  1 ] level 1 MXML_ELEMENT [group]
[ 4  ->  3 ] level 2 MXML_OPAQUE [
        ]
[ 5  ->  3 ] level 2 MXML_ELEMENT [option]
[ 6  ->  5 ] level 3 MXML_OPAQUE [122334 我们
                ]
[ 7  ->  5 ] level 3 MXML_ELEMENT [string]
[ 8  ->  7 ] level 4 MXML_OPAQUE [我们]
[ 9  ->  5 ] level 3 MXML_OPAQUE [45677
                ]
[ 10 ->  5 ] level 3 MXML_ELEMENT [keyword] type=opaque
[ 11 ->  10] level 4 MXML_OPAQUE [InputSlot]
[ 12 ->  5 ] level 3 MXML_OPAQUE [
                ]
[ 13 ->  5 ] level 3 MXML_ELEMENT [default] type=opaque
[ 14 ->  13] level 4 MXML_OPAQUE [Auto]
[ 15 ->  5 ] level 3 MXML_OPAQUE [
                ]
[ 16 ->  5 ] level 3 MXML_ELEMENT [text]
[ 17 ->  16] level 4 MXML_OPAQUE [Media Source]
[ 18 ->  5 ] level 3 MXML_OPAQUE [
                ]
[ 19 ->  5 ] level 3 MXML_ELEMENT [order] type=real
[ 20 ->  19] level 4 MXML_OPAQUE [10.000000]
[ 21 ->  5 ] level 3 MXML_OPAQUE [
                ]
[ 22 ->  5 ] level 3 MXML_ELEMENT [choice]
[ 23 ->  22] level 4 MXML_OPAQUE [
                        ]
[ 24 ->  22] level 4 MXML_ELEMENT [keyword] type=opaque
[ 25 ->  24] level 5 MXML_OPAQUE [Auto]
[ 26 ->  22] level 4 MXML_OPAQUE [
                        ]
[ 27 ->  22] level 4 MXML_ELEMENT [text]
[ 28 ->  27] level 5 MXML_OPAQUE [Auto Tray Selection]
[ 29 ->  22] level 4 MXML_OPAQUE [
                        ]
[ 30 ->  22] level 4 MXML_ELEMENT [code] type=opaque
[ 31 ->  22] level 4 MXML_OPAQUE [
                ]
[ 32 ->  5 ] level 3 MXML_OPAQUE [
                ]
[ 33 ->  5 ] level 3 MXML_ELEMENT [choice]
[ 34 ->  33] level 4 MXML_OPAQUE [
                        ]
[ 35 ->  33] level 4 MXML_ELEMENT [keyword] type=opaque
[ 36 ->  35] level 5 MXML_OPAQUE [Upper]
[ 37 ->  33] level 4 MXML_OPAQUE [
                        ]
[ 38 ->  33] level 4 MXML_ELEMENT [text]
[ 39 ->  38] level 5 MXML_OPAQUE [Tray 1]
[ 40 ->  33] level 4 MXML_OPAQUE [
                        ]
[ 41 ->  33] level 4 MXML_ELEMENT [code] type=opaque
[ 42 ->  41] level 5 MXML_OPAQUE [<</MediaPosition 0>>setpagedevice]
[ 43 ->  33] level 4 MXML_OPAQUE [
                ]
[ 44 ->  5 ] level 3 MXML_OPAQUE [
                ]
[ 45 ->  5 ] level 3 MXML_ELEMENT [choice]
[ 46 ->  45] level 4 MXML_OPAQUE [
                        ]
[ 47 ->  45] level 4 MXML_ELEMENT [keyword] type=opaque
[ 48 ->  47] level 5 MXML_OPAQUE [Lower]
[ 49 ->  45] level 4 MXML_OPAQUE [
                        ]
[ 50 ->  45] level 4 MXML_ELEMENT [text]
[ 51 ->  50] level 5 MXML_OPAQUE [Tray 2]
[ 52 ->  45] level 4 MXML_OPAQUE [
                        ]
[ 53 ->  45] level 4 MXML_ELEMENT [code] type=opaque
[ 54 ->  53] level 5 MXML_OPAQUE [<</MediaPosition 1>>setpagedevice]
[ 55 ->  45] level 4 MXML_OPAQUE [
                ]
[ 56 ->  5 ] level 3 MXML_OPAQUE [
        ]
[ 57 ->  3 ] level 2 MXML_OPAQUE [ 我12334545 050504550
        ]
[ 58 ->  3 ] level 2 MXML