二维码设置默认头像

@@ -11,6 +11,7 @@ exports.index = (req, res, next) => {
     }).then(result => {
         params.token = result;
         params.uname = decodeURI(params.uname);
+        params.icon = params.icon || 'https://img11.static.yhbimg.com/yhb-img01/2016/07/05/13/017ec560b82c132ab2fdb22f7cf6f42b83.png?imageView/2/w/{width}/h/{height}';
         res.render('myqrcode', {
             title: '查看二维码',
             module: 'home',