?
代碼:
<script type="text/javascript">
var newWindow = null;//定義newWindow 必須在函數(shù)之外??
function aaaa()
{
? ?? ???if (!newWindow || newWindow.closed)
? ?? ???{
? ?? ?? ?? ?? ? newWindow = window.open('22.html','aa');
? ?? ???}
}
</script>
<input type="button" value="123123" onclick="aaaa()">