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<!DOCTYPE html> <html> <body> <h1>Storage key() 方法</h1> <p>此示例演示如何使用 key() 方法获取本地存储项的名称。</p> <button onclick="myFunction()">获取第一个本地存储项的名称</button> <p id="demo"></p> <script> function myFunction() { var x = localStorage.key(0); document.getElementById("demo").innerHTML = x; } </script> </body> </html>