Home
JS
JS
Tryit: JAVASCRIPT
运行 ❯
×
Change Orientation
Change Theme, Dark/Light
<!DOCTYPE html> <html> <body> Field1: <input type="text" id="field1" value="Hello World!"><br> Field2: <input type="text" id="field2"><br><br> <button onclick="myFunction()">复制文字</button> <p>单击按钮时会触发一个函数。 该函数将文本从 Field1 复制到 Field2。</p> <script> function myFunction() { document.getElementById("field2").value = document.getElementById("field1").value; } </script> </body> </html>