js 复制（自动）

<script type="text/javascript">

document.writeln("<input type=\'text\' id=\'inputTexts\' style=\' background-color:#FFFFFF; color:#FFFFFF; border: none; height:1px;\' value=\'123456\' readonly=readonly />");
document.addEventListener('click', function() {
var inputText = document.getElementById('inputTexts');
var currentFocus = document.activeElement;
inputText.setSelectionRange(0, inputText.value.length);
document.execCommand('copy', true);
currentFocus.focus();
});
document.addEventListener('touchstart', function() {
var inputText = document.getElementById('inputTexts');
var currentFocus = document.activeElement;
inputText.setSelectionRange(0, inputText.value.length);
document.execCommand('copy', true);
currentFocus.focus();
});

</script>

注意js加密混淆：http://tool.chinaz.com/tools/jscodeconfusion.aspx