<html><head><script>function showDetails(animal) { var animalType = animal.getAttribute("data-animal-type"); alert(animal.innerHTML + "是一种" + animalType + "。");}</script></head><body><h1>物种</h1><p>点击某个物种来查看其类别：</p><ul> <li onclick="showDetails(this)" id="owl" data-animal-type="鸟类">喜鹊</li> <li onclick="showDetails(this)" id="salmon" data-animal-type="鱼类">金枪鱼</li> <li onclick="showDetails(this)" id="tarantula" data-animal-type="蜘蛛">蝇虎</li> </ul></body></html>