document.getElementById('test').value = 'Hello StackOverflow (on JavaScript)';
<textarea id="test"></textarea>
<textarea>Hello StackOverflow (on HTML)</textarea>
<textbox>
元素中获取值,您可以使用几乎相同的JavaScript代码: document.getElementById("id").value
// or in your case
document.getElementById("arid_WIN_3_536870915").value
如果你想获取textarea当前状态的值,你可以使用JavaScript,像这样:
最初的回答:
<html>
<head>
<title>test</title>
</head>
<body>
<textarea onkeyup="getcurrenttext()" id='arid_WIN_3_536870915'>
</textarea>
<div id='result'></div>
<script>
function getcurrenttext()
{
// Value of textarea at this very moment
var textareatext = document.getElementById('arid_WIN_3_536870915').value;
// The current text in the textarea should be shown in the console
console.log(textareatext)
// And also in a div for example purpose
document.getElementById('result').innerHTML = textareatext;
}
</script>
</body>
</html>
element.value
。要检查其内部工作原理,您需要启用在元素检查器中查看影子 DOM。 - connexo