# data ~~~ <li onclick="showDetails(this)" id="owl" data-animal-type="鸟类">喜鹊</li> <script> function showDetails(animal) { var animalType = animal.getAttribute("data-animal-type"); alert(animal.innerHTML + "是一种" + animalType + "。"); } </script> ~~~ 或者使用 ~~~ function showDetails(animal) { console.log(animal.dataset.animalType) } ~~~