var link = "https//www.test.com/shared?key=" + shareddata;
            const input = document.createElement('input');
            document.body.appendChild(input);
            input.setAttribute('value', link);
            input.select();
            if (document.execCommand('copy')) {
                document.execCommand('copy');
                layer.msg("复制成功，请手动分享链接")
            }
            document.body.removeChild(input);