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<!DOCTYPE html> <html> <body> <h3>如何访问 OPTION 元素的演示</h3> <select> <option id="myOption" value="volvocar">Volvo</option> <option value="saabcar">Saab</option> </select> <p>单击按钮可在下拉列表中获取 Volvo 选项的文本。</p> <button onclick="myFunction()">试一试</button> <p id="demo"></p> <script> function myFunction() { var x = document.getElementById("myOption").text; document.getElementById("demo").innerHTML = x; } </script> </body> </html>