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Tryit: JAVASCRIPT
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Change Theme, Dark/Light
<!DOCTYPE html> <html> <body> <form> <input type="button" id="btn01" value="OK"> </form> <p>点击“Disable”按钮，禁用“OK”按钮：</p> <button onclick="disableElement()">Disable</button> <script> function disableElement() { document.getElementById("btn01").disabled = true; } </script> </body> </html>