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HTML DOM focus()方法


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Definition and Usage
定义与用法

The focus() method is used to give focus to a checkbox.
focus()方法可用来聚焦某个checkbox

Syntax
语法

checkboxObject.focus()


Example
举例

The following example sets and removes focus from a checkbox:
下面的举例将演示如何设置并取消对某个checkbox的聚焦

<html>
<head>
<script type="text/javascript">
function setFocus() { document.getElementById('check1').focus() }
function loseFocus() { document.getElementById('check1').blur() }
</script>
</head>
<body>
<form>
<input type="checkbox" id="check1" />
<br />
<input type="button" onclick="setFocus()" value="Set focus" />
<input type="button" onclick="loseFocus()" value="Lose focus" />
</form>
</body>
</html>


演练

Set and remove focus from a checkbox
设置或取消对复选框的聚焦

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