javascript　复制与粘贴操作

1. <scriptlanguage="Javascript">
2. functionreadTxt()
3. {
4. alert(window.clipboardData.getData("text"));
5. }
6. functionsetTxt()
7. {
8. vart=document.getElementById("txt");
9. t.select();
10. window.clipboardData.setData('text',t.createTextRange().text);
11. }
12. </script>
13. <inputname="txt"value="测试">
14. <inputtype="button"value="复制"onclick="setTxt()">
15. <inputtype="button"value="读取"onclick="readTxt()">