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HTML DOM Ul 对象
tryjsref_ul_get
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<!DOCTYPE html> <html> <body> <h3>A demonstration of how to access a UL element</h3> <ul id="myUL"> <li>Coffee</li> <li>Tea</li> <li>Milk</li> </ul> <p>Click the button to get the id of the unordered list.</p> <button onclick="myFunction()">Try it</button> <p id="demo"></p> <script> function myFunction() { var x = document.getElementById("myUL").id; document.getElementById("demo").innerHTML = x; } </script> </body> </html>