验证码图片质量优化

@@ -30,7 +30,7 @@ exports.get = (req, res, next) => {
 
 exports.imgCheck = (req, res, next) => {
     if (req.session.captchaSrc) {
-        return request(`${req.session.captchaSrc}?watermark/2/text/${uuid.v4()}/fontsize/120/dissolve/10/format/jpg`)
+        return request(`${req.session.captchaSrc}?imageView2/0/format/jpg/q/70|watermark/2/text/${uuid.v4()}/fontsize/120/dissolve/10`)
         .pipe(res);
     }
     return next();