App下載
實(shí)例代碼( Tip: 登錄后體驗(yàn)更佳 )
<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<title>W3Cschool教程(w3cschool.cn)</title>
</head>
<body>
<p>想文本域中输入信息并点击重置按钮。</p>
<form onreset="myFunction()">
    <input type="text" id="myInput">
    <input type="reset">
</form>
<script>
function myFunction() {
    var x = document.getElementById("myInput");
    alert("重置前，文本信息为： " + x.value);
}
</script>
</body>
</html>
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