使用vue-router 刷新 404错误

server {
        listen       80;
        server_name  demongao.com www.demongao.com;
        root         /demongao/vueblog/dist;

        # Load configuration files for the default server block.
        include /etc/nginx/default.d/*.conf;

        location / {
             try_files $uri $uri/ @router;
             index index.html;
         }

        location @router {
            rewrite ^.*$ /index.html last;
        }

        error_page 404 /404.html;
            location = /40x.html {
        }

        error_page 500 502 503 504 /50x.html;
            location = /50x.html {
        }
    }