Function randomString

js/chat.js:367–376

(len)

    }

    function randomString(len) {
        len = len || 32;
        var $chars = 'ABCDEFGHJKMNPQRSTWXYZabcdefhijkmnprstwxyz2345678';    /****默认去掉了容易混淆的字符oOLl,9gq,Vv,Uu,I1****/
        var maxPos = $chars.length;
        var pwd = '';
        for (i = 0; i < len; i++) {
            pwd += $chars.charAt(Math.floor(Math.random() * maxPos));
        }
        return pwd;
    }

});