我正在尝试迭代这个对象
{
"2021-11-22": [
{
"id": 1,
"standard_id": 2,
"user_id": 4,
"subject_id": 1,
"exam_date": "2021-11-22",
"start_time": "09:45:00",
"end_time": "02:52:00",
"description": "kjhkjhkjhkjhkj\n\n\njgfhgfhgfghfghfhg",
"deleted_at": null,
"created_at": "2021-11-22T03:47:34.000000Z",
"updated_at": "2021-11-22T03:47:34.000000Z",
"subject": {
"id": 1,
"standard_id": 2,
"name": "engilsh",
"deleted_at": null,
"created_at": "2021-11-21T07:11:15.000000Z",
"updated_at": "2021-11-21T07:11:15.000000Z"
}
},
{
"id": 2,
"standard_id": 2,
"user_id": 4,
"subject_id": 2,
"exam_date": "2021-11-22",
"start_time": "09:45:00",
"end_time": "10:45:00",
"description": "kjhkjhkjhkjhkj\n\n\njgfhgfhgfghfghfhg",
"deleted_at": null,
"created_at": "2021-11-22T03:49:41.000000Z",
"updated_at": "2021-11-22T03:49:41.000000Z",
"subject": {
"id": 2,
"standard_id": 2,
"name": "Physics",
"deleted_at": null,
"created_at": "2021-11-21T07:17:25.000000Z",
"updated_at": "2021-11-21T07:17:25.000000Z" …