function  status(item){

    let now = Date.parse(new Date());

    let startString = Date.parse(new Date(Date.parse((item.startTime+'').replace(/-/g, "/"))));

    let endString = Date.parse(new Date(Date.parse((item.endTime+'').replace(/-/g, "/"))));

    if(endString - now < 0){

        return '已结束';

    }

    else if(endString - now >= 0 ){

        return '报名参与'

    }else if(startString - now >0){

        return '即将开始';

    }

}