zhangjingyu 
修改测试
function CopyCode(obj) {
    if (typeof obj != 'object') {
        if (is_ie) {
            if(window.clipboardData.setData("Text",obj)){
                alert('复制成功！');
            }
        } else {
            prompt('按Ctrl+C复制内容', obj);
        }
    } else if (is_ie) {
        var lis = obj.getElementsByTagName('li'), ar = [];
        for(var i=0,l=lis.length; i