其实就是备份一下配置方法,防止我以后忘,嘿嘿

#禁用缓存 
  location ~ .*\.(gif|jpg|jpeg|png|bmp|swf|js|css)$ 
    {
        add_header Cache-Control no-store,no-cache;
    }
#允许跨域
        add_header Access-Control-Allow-Origin *;
        add_header Access-Control-Allow-Headers *;
        add_header Access-Control-Allow-Methods "GET, POST, OPTIONS";