back

      // 如果 是 app端

      if ( window.plus ) { 

        var arr = JSON.parse(window.localStorage.getItem("name"));

        var query = JSON.parse(localStorage.getItem('evalutaionData'));

        if( !arr ){

          arr = [];

        }

        var i = arr.length-2;

        var toName = arr[i];

        var toquery = query[i];

        this.$router.push( { name: toName, query: toquery } )

      }else{//否则使用 vue的方法

        this.$router.back();

      }