Properties
| Properties | Value | Description |
|---|---|---|
| for | id of another element | Define one or more elements related to the output domain . |
| form | formname | Define one or more forms to which the input fields belong. |
| name | unique name | Definition The unique name of the object. (Used when submitting the form) |
You will understand after looking at an example:
<!DOCTYPE HTML>
<html>
<head>
<mce:script type="text/<a href="http://lib.csdn.net/base/javascript" class='replace_word' title="JavaScript知识库" target='_blank' style='color:#df3434; font-weight:bold;'>JavaScript</a>"><!--
function write_sum()
{
x=5
y=3
document.forms["sumform"]["sum"].value=x+y
}
// --></mce:script>
</head>
<body onload="write_sum()">
<form action="form_action.asp" method="get" name="sumform">
<output name="sum"></output>
</form>
</body>
</html><form action="" id="myform" oninput="num.value=parseInt(num1.value)+parseInt(num2.value)">
<input type="number" id="num1">+
<input type="number" id="num2">=
<output name="num" for="num1 num2"></output>
</form> God rewards those who work hard, and those who accumulate more will gain more. A gentleman's journey is to cultivate one's character through tranquility and cultivate one's virtue through frugality. Without indifference, there is no clear ambition; without tranquility, there is no far-reaching goal. If there is permanence, there is no need to wake up at midnight and sleep in the middle of the night; the worst thing is to fish for three days and dry the nets for two days, and to fetch water from bamboo baskets in vain.
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