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<!DOCTYPE html> <html> <body> <p>此示例使用 HTML DOM 将“onsubmit”事件分配给表单元素。</p> <p>当您提交表单时，将触发一个功能，该功能会提醒一些文本。</p> <form id="myForm" action="/action_page.php"> Enter name: <input type="text" name="fname"> <input type="submit" value="提交"> </form> <script> document.getElementById("myForm").onsubmit = function() {myFunction()}; function myFunction() { alert("表单已提交"); } </script> </body> </html>