js预览IE打印

function previewPrint() {
    window.print();
}

<!--[if IE]>
<script type="text/javascript">
    function previewPrint() {
        // IE特定的打印逻辑
        var printContents = document.getElementById('print-section').innerHTML;
        var originalContents = document.body.innerHTML;
        document.body.innerHTML = printContents;
        window.print();
        document.body.innerHTML = originalContents;
    }
</script>
<![endif]-->

function isIE() {
    var ua = window.navigator.userAgent;
    var msie = ua.indexOf('MSIE ');
    var trident = ua.indexOf('Trident/');
    return msie > 0 || trident > 0;
}

function previewPrint() {
    if (isIE()) {
        // IE特定的打印逻辑（同上）
    } else {
        window.print();
    }
}