checkList:[????????????????????{????????????????????????date:'2019-01-01',????????????????????????num:1,????????????????????????roomId:1????????????????????},????????????????????{????????????????????????date:'2019-01-02',????????????????????????num:1,????????????????????????roomId:1????????????????????},????????????????????{????????????????????????date:'2019-01-03',????????????????????????num:1,????????????????????????roomId:1????????????????????},????????????????????{????????????????????????date:'2019-01-05',????????????????????????num:1,????????????????????????roomId:1????????????????????},????????????????????{????????????????????????date:'2019-01-03',????????????????????????num:1,????????????????????????roomId:2????????????????????},????????????????????{????????????????????????date:'2019-01-04',????????????????????????num:1,????????????????????????roomId:2????????????????????}????????????????],????????????????checkList2:[????????????????????{????????????????????????date:'2019-01-01',????????????????????????num:3,????????????????????????roomId:1????????????????????},????????????????????{????????????????????????date:'2019-01-05',????????????????????????num:1,????????????????????????roomId:1????????????????????},????????????????????{????????????????????????date:'2019-01-03',????????????????????????num:2,????????????????????????roomId:2????????????????????}????????????????]最終我想把list這個初始數(shù)據(jù)變成list2這樣的數(shù)據(jù)要怎么弄，num是天數(shù)，roomId是房間id