collected_testcases = [
    'https://naga.dmv.nico/htmls/dc0ec66517e3839933a81a53bd5b1fa7eec84fc390298a927cfd73957ca33eecv2_2.html',  # 多个杠材的情况
    'https://naga.dmv.nico/htmls/37148e0bfc81f8afdc48f8e093e19de427b3370202237c29fb17a387c5bcbb2fv2_2.html',  # 普通的k
]