修复用户在loading过程中多次切换的bug
修复用户在loading过程中多次切换的bug

tangguangyao/scrat-site,scrat-team/scrat-site,liupeng110112/scrat-site,blue2sky/scrat-site,scrat-team/scrat-site,liupeng110112/scrat-site,blue2sky/scrat-site,scrat-team/scrat-site,blue2sky/scrat-site,tangguangyao/scrat-site,liupeng110112/scrat-site,tangguangyao/scrat-site