<script language="javascript">
function readtxt()
{
alert(window.clipboarddata.getdata("text"));
}
function settxt()
{
var t=document.getelementbyid("txt");
t.select();
window.clipboarddata.setdata('text',t.createtextrange().text);
}
</script>
<input name="txt" value="测试">
<input type="button" value="复制" onclick="settxt()">
<input type="button" value="读取" onclick="readtxt()">
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