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Ol reversed 属性
tryjsref_ol_reversed
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<!DOCTYPE html> <html> <body> <ol id="myOl"> <li>Coffee</li> <li>Tea</li> <li>Milk</li> <li>Juice</li> <li>Water</li> </ol> <p>Click the button to set the list order to descending (9, 8, 7...) instead of ascending (1, 2, 3...).</p> <button onclick="myFunction()">Try it</button> <script> function myFunction() { document.getElementById("myOl").reversed = true; } </script> </body> </html>