我正在從測試發(fā)票中從Stripe API中提取數(shù)據(jù)。我正在嘗試縮小使用點表示法提取特定鍵值對的方法，但是由于從嵌套值看似比其余數(shù)據(jù)更嵌套，我無法從特定鍵值中提取數(shù)據(jù)（不確定是否正確）術(shù)語）。這些數(shù)據(jù)我想拉數(shù)據(jù)從從period: end:從period: start:從線44-46粗略。如果我在代碼中使用點表示法，則當鍵值對位于同一行時，它可以工作，例如sheet.getRange(3,2).setValue([content.amount_due]);。但是似乎“ period：end”和“ period：start”嵌套得更深了。我嘗試做類似的事情，[content.lines.data.period.end]但沒有成功。它返回此錯誤：TypeError: Cannot read property "end" from undefined.以下是從API中提取的完整數(shù)據(jù)（注意："xxxxxxxxxxxxxxxx"代表已隱藏的數(shù)據(jù)）：  ""id"": ""in_xxxxxxxxxxxxxxxx"",  ""object"": ""invoice"",  ""amount_due"": 800,  ""amount_paid"": 800,  ""amount_remaining"": 0,  ""application_fee"": null,  ""attempt_count"": 1,  ""attempted"": true,  ""auto_advance"": false,  ""billing"": ""charge_automatically"",  ""billing_reason"": ""subscription_cycle"",  ""charge"": ""ch_xxxxxxxxxxxxxxxx"",  ""closed"": true,  ""created"": 1552077120,  ""currency"": ""usd"",  ""custom_fields"": null,  ""customer"": ""cus_xxxxxxxxxxxxxxxx"",  ""date"": 1552077120,  ""default_payment_method"": null,  ""default_source"": null,  ""description"": null,  ""discount"": null,  ""due_date"": null,  ""ending_balance"": 0,  ""finalized_at"": 1552080770,  ""footer"": null,  ""forgiven"": false,  ""hosted_invoice_url"": ""https://pay.stripe.com/invoice/invst_xxxxxxxxxxxxxxxx"",  ""invoice_pdf"": ""https://pay.stripe.com/invoice/invst_xxxxxxxxxxxxxxxx/pdf"",  ""lines"": {    ""object"": ""list"",    ""data"": [      {        ""id"": ""sub_xxxxxxxxxxxxxxxx"",        ""object"": ""line_item"",        ""amount"": 800,        ""currency"": ""usd"",        ""description"": null,        ""discountable"": true,        ""livemode"": false,        ""metadata"": {        },        ""period"": {          ""end"": 1554755515,          ""start"": 1552077115        },