tryjsref_button_disabled 在线代码实例

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<!DOCTYPE html>
<html>
<body>
<form>
Buttons:
<input type="button" id="firstbtn" value="OK">
<input type="button" id="secondbtn" value="OK">
</form>
<p>Click the button below to disable the first button above.</p>
<button onclick="disableElement()">Disable button</button>
<script>
function disableElement()
{
document.getElementById("firstbtn").disabled=true;
}
</script>
</body>
</html>
 
 
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运行结果
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