高手教程在线编辑器

AI 编程工具
<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<title>高手教程(study.p2hp.com)</title>
<script>
function displayResult(){
	var x=document.getElementById("fname").type;
	alert(x);
}
</script>
</head>
<body>

<form>
选择一个文件上传:
<input type="file" id="fname">
</form>
<button type="button" onclick="displayResult()">显示 input 类型</button>

</body>
</html>
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<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<title>高手教程(study.p2hp.com)</title>
<script>
function displayResult(){
    var x=document.getElementById("fname").type;
    alert(x);
}
</script>
</head>
<body>
​
<form>
选择一个文件上传:
<input type="file" id="fname">
</form>
<button type="button" onclick="displayResult()">显示 input 类型</button>
​
</body>
</html>