一、知识要点
onsubmit
onreset
二、源码参考
<!DOCTYPE HTML>
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8">
<title>无标题文档</title>
<script>
window.onload = function () {
var oForm = document.getElementById('form1');
// onsubmit : 当表单被提交的时候触发
oForm.onsubmit = function () {
if (this.username.value == '') {
alert('请填写用户名');
return false;
}
}
// onreset : 当表单要重置的时候触发
oForm.onreset = function () {
return confirm('你确定要重置？');
}
confirm('你确定要重置？');
document.title = 1;
}
</script>
</head>
<body>
<form id="form1" action="http://www.baidu.com">
<input type="text" name="username" />
<input type="password" name="password" />
<!--<input type="button" value="提交" />-->
<input type="submit" value="提交" />
<input type="reset" value="重置" />
</form>
</body>
</html>
image.png
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