<script> function setTxt(obj) { var obj=obj; var t=document.getElementById(""+obj+"孙旅"); t.select(); window.clipboardData.setData('text',t.createTextRange().text); } </script>枯键使用<asp:TextBox runat=server ID=tbx_title Text="" TextMode=multiline Height=100 Width=450></asp:TextBox><br /> <input type="button" value=" 复 制 " class=button onclick="setTxt('tbx_title')"没凯巧>