判断列表为空

zhangjian

2023-08-07 6b009b0f6d3ef3aee97c362cebcd679d1b9088a3

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{
    "universal": 50,
    "tag": 30,
    "attribute": 1,
    "pseudo": 0,
    "descendant": -1,
    "child": -1,
    "parent": -1,
    "sibling": -1,
    "adjacent": -1
}