我有 bs4.element.Tag 类型的元素
<a class="nav-link match-link-stats" href="/football/matches/match867851_Kalteng_Putra-Arema-online/" title="Stat"><i class="icon-match-link"></i></a>
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我想从这个元素中得到“/football/matches/match867851_Kalteng_Putra-Arema-online/”。怎么做?