editor.customConfig.linkCheck = function(text, link) {
        if (link != "") {
          var reg = /(http|ftp|https):\/\/[\w\-_]+(\.[\w\-_]+)+([\w\-\.,@?^=%&:/~\+#]*[\w\-\@?^=%&/~\+#])?/;
          if (!reg.test(link)) {
            return '请输入正确的网址(例如 http://baidu.com)'
          }else{
            return true
          }
        }
      }