我有一个 JSON 文件，我需要解析它以提取一些值。
示例如下所示：
[
{
"period": "2016-06-07 - 2016-06-14",
"range": "2016-06-07..2016-06-14",
"items": [
{
"region_name": "Canterbury/Otago",
"region_id": 12,
"average_cover": 2099,
"average_growth": 16,
"reading_count": 3
},
{
"region_name": "Southland",
"region_id": 14,
"average_cover": 2068,
"average_growth": 3,
"reading_count": 1
},
{
"region_name": "Wairarapa \u0026 Hawkes Bay",
"region_id": 10,
"average_cover": 2195,
"average_growth": 20,
"reading_count": 2
}
]
},
{
"period": "2016-05-31 - 2016-06-07",
"range": "2016-05-31..2016-06-07",
"items": [
{
"region_name": "Canterbury/Otago",
"region_id": 12,
"average_cover": 2126,
"average_growth": 17,
"reading_count": 5
},
{
"region_name": "Southland",
"region_id": …