資料格式

reportList: [{

   date: "",     

   projectCode:    "",    

   hours:          4,      

   content:        

"",     

   status:         "",     

   matterItem: [{

      matterCode:    "",    

     hours:          

  }]

}]

var idex = e.currentTarget.dataset.code;
    var reportList = this.data.reportList;
    for (var i = 0; i < reportList.length;i++){
        if (reportList[i].matterItem) {
            for (var j = 0; j < reportList[i].matterItem.length;j++){
                if (reportList[i].matterItem[j].matterCode == idex) {
                    reportList[i].matterItem = reportList[i].matterItem[j];
                    var datas=reportList[i];
                }
            }
        }
    }