现有一堆数据，我需要按时间进行分组，以便前端视图呈现
[
{date:2017-12-22,start_time:10:00:00,end_time:10:00:00,status:Performance Time},
{date:2017-12-22,start_time:10:40:00,end_time:10:40:00,status:Performance Time},
{date:2017-12-23,start_time:10:00:00,end_time:10:00:00,statu
