onsubmit 表单提交事件

静态注册表单提交事件

 

如果发现提交不合法，可以通过onsubmit="return false"阻止表单提交

<head>
    <meta charset="UTF-8">
    <title>Title</title>
    <script type="text/javascript">
        alert("使用")
        var onsubmitfun = function (){
            alert("静态注册表单提交")
        }
    </script>
</head>
<body>
<form method="get" action="https://localhost:8080">
  <input type="submit" value="静态提交" onsubmit="onsubmitfun()">
</form>

动态提交事件

 

<head>
    <meta charset="UTF-8">
    <title>Title</title>
    <script type="text/javascript">
        window.onload = function () {
            var onsubmit = document.getElementById("form01")
            onsubmit.onsubmit = function (){
                alert("动态注册不合法")
                return false
            }
        }
    </script>
</head>
<body>
<form action="https://localhost:8080" id="form01" method="get">
    <input type="submit" value="动态提交"/>
</form>
</body>

 

posted @ 2022-03-17 15:20  软工小蜗牛  阅读(178)  评论(0)    收藏  举报