使用powershell从json提取特定值

Question

我正在尝试使用powershell脚本从json文件下面提取“ 02. open”键的值。我该怎么做？

plotOptions: {
    series: {
        grouping: false,
        ...
    },
}

输出应为{ "Global Quote": { "01. symbol": "XYZ", "02. open": "26.8200", "03. high": "27.4900", "04. low": "26.0800", "05. price": "26.9900", "06. volume": "55674", "07. latest trading day": "2019-08-20", "08. previous close": "26.8600", "09. change": "0.1300", "10. change percent": "0.4840%" } } 。