我有一个包含多维数组的JSON文件。第一层是城市,第二层是温度数据。动态地从第二级提取值时遇到问题。
我尝试了以下方法:
console.log(Object.values(json[0])[3][1]) but it gives me errors.
不过,这很管用:
console.log(Object.values(json[0])[3])
以下是我的JSON代码示例:
[
{
"id": 1,
"city": "Amsterdam",
"country": "Netherlands",
"monthlyAvg": [
{
"high": 7,
"low": 3,
"dryDays": 19,
"snowDays": 4,
"rainfall": 68
},
{
"high": 6,
"low": 3,
"dryDays": 13,
"snowDays": 2,
"rainfall": 47
},
{
"high": 10,
"low": 6,
"dryDays": 16,
"snowDays": 1,
"rainfall": 65
},
{
"high": 11,
"low": 7,
"dryDays": 12,
"snowDays": 0,
"rainfall": 52
},
{
"high": 16,
"low": 11,
"dryDays": 15,
"snowDays": 0,
"rainfall": 59
},
{
"high": 17,
"low": 11,
"dryDays": 14,
"snowDays": 0,
"rainfall": 70
},
{
"high": 20,
"low": 12,
"dryDays": 14,
"snowDays": 0,
"rainfall": 74
},
{
"high": 20,
"low": 12,
"dryDays": 15,
"snowDays": 0,
"rainfall": 69
},
{
"high": 17,
"low": 10,
"dryDays": 14,
"snowDays": 0,
"rainfall": 64
},
{
"high": 14,
"low": 9,
"dryDays": 16,
"snowDays": 0,
"rainfall": 70
},
{
"high": 9,
"low": 6,
"dryDays": 20,
"snowDays": 1,
"rainfall": 82
},
{
"high": 7,
"low": 1,
"dryDays": 19,
"snowDays": 1,
"rainfall": 85
}
]
},
{
"id": 2,
"city": "Athens",
"country": "Greece",
"monthlyAvg": [
我希望能够检索对应于high的值7。
我现在可以说:
json[0].monthlyAvg[0].high
如果不指定“.high”,如何获得结果
例如,这就是我想象的代码:
所以像这样:
“high”:7->我想通过键入类似json[0]的内容获得7。
“low”:3->我想通过键入类似json[0]的内容获得7。
“drydays”:19->我想通过键入类似json[0]的内容获得7.monthlyavg[0][2]
“Snowdays”:4->我想通过键入类似json[0]的内容获得7。
“降雨量”:68->我想通过键入类似json[0]的内容获得7。monthlyavg[0][4]
