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源代码：
点击运行
<!DOCTYPE html> <html> <head> <meta charset="utf-8"> <title>安科教程(www.ancii.com)</title> </head> <body> <input type="number" id="myNumber" value="2"> <p>点击按钮返回 number 字段的表单元素类型。</p> <button onclick="myFunction()">点我</button> <p id="demo"></p> <script> function myFunction() { var x = document.getElementById("myNumber").type; document.getElementById("demo").innerHTML = x; } </script> </body> </html>
运行结果
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