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HTML DOM addEventListener() 方法
tryjsref_document_addeventlistener4
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<!DOCTYPE html> <html> <body> <p>此示例使用 addEventListener() 方法在文档中添加许多事件。</p> <p id="demo"></p> <script> document.addEventListener("mouseover", myFunction); document.addEventListener("click", mySecondFunction); document.addEventListener("mouseout", myThirdFunction); function myFunction() { document.getElementById("demo").innerHTML += "Moused over!<br>" } function mySecondFunction() { document.getElementById("demo").innerHTML += "Clicked!<br>" } function myThirdFunction() { document.getElementById("demo").innerHTML += "Moused out!<br>" } </script> </body> </html>