W3School TIY Editor
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<!DOCTYPE html> <html> <body> <h1>按 Enter 键触发按钮点击</h1> <p>请在输入框内按下 "enter" 键以触发按钮：</p> <input id="myInput" value="Some text.."> <button id="myBtn" onclick="javascript:alert('Hello World!')">Button</button> <script> var input = document.getElementById("myInput"); input.addEventListener("keypress", function(event) { if (event.key === "Enter") { event.preventDefault(); document.getElementById("myBtn").click(); } }); </script> </body> </html>