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Tryit: JAVASCRIPT
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<!DOCTYPE html> <html> <body> <button id="btn1" type="button">HTML</button> <p>点击“试一试”按钮返回“HTML”按钮的类型：</p> <button onclick="myFunction()">试一试</button> <p id="demo"></p> <script> function myFunction() { var x = document.getElementById("btn1").type; document.getElementById("demo").innerHTML = x; } </script> </body> </html>