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<!DOCTYPE html> <html> <body> <p>此示例演示如何将“onhashchange”事件分配给窗口对象。</p> <p>单击按钮将当前 URL 的锚点部分更改为#part5</p> <button onclick="changePart()">试一试</button> <p id="demo"></p> <script> // 使用 location.hash 属性更改锚点部分 function changePart() { location.hash = "part5"; var x = location.hash; document.getElementById("demo").innerHTML = "锚点部分现在是：" + x; } window.onhashchange = myFunction; function myFunction() { alert("锚点部分发生了变化！"); } </script> </body> </html>