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<!DOCTYPE html> <html> <body> <p>本例使用 addEventListener() 方法将 "dblclick" 事件附加到 p 元素。</p> <p id="demo">双击我</p> <script> document.getElementById("demo").addEventListener("dblclick", myFunction); function myFunction() { document.getElementById("demo").innerHTML = "I was double-clicked!"; } </script> </body> </html>