Eruda

<script>
    (function () {
        var src = 'https://m.jandou.com/tool/js/eruda.min.js';
        if (!/eruda=true/.test(window.location) && localStorage.getItem('active-eruda') != 'true') return;
        document.write('<scr' + 'ipt src="' + src + '"></scr' + 'ipt>');
        document.write('<scr' + 'ipt>eruda.init();</scr' + 'ipt>');
    })();
</script>

<script src="https://m.jandou.com/tool/js/vConsole.min.js"></script>