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<!DOCTYPE html>
<html>
<body>
​
<h3>演示如何创建 Number 字段</h3>
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<p>点击按钮来创建 Number 字段。</p>
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<button onclick="myFunction()">试一下</button>
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<script>
function myFunction() {
    var x = document.createElement("INPUT");
    x.setAttribute("type", "number");
    x.setAttribute("value", "12345");
    document.body.appendChild(x);
}
</script>
​
</body>
</html>
​