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Tryit: JAVASCRIPT
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<!DOCTYPE html> <html> <body> <p>单击该按钮以创建一个 INPUT 字段、一个 DATALIST 元素和一个 OPTION 元素。</p> <form id="myForm"> </form> <button onclick="myFunction()">试一试</button> <p><strong>注意：</strong> Internet Explorer 9 及更早版本或 Safari 不支持 datalist 元素。</p> <script> function myFunction() { var x = document.createElement("INPUT"); x.setAttribute("list", "browsers"); document.getElementById("myForm").appendChild(x); var y = document.createElement("DATALIST"); y.setAttribute("id", "browsers"); document.getElementById("myForm").appendChild(y); var z = document.createElement("OPTION"); z.setAttribute("value", "Chrome"); document.getElementById("browsers").appendChild(z); } </script> </body> </html>