我是新手,我了解如何将 json 数据编组为自定义的预定义 Struct 类型,但我目前正在使用 JSON 集,该集可以在每次调用时具有动态键和值。我可以将这些动态数据编组到地图/界面中,这没问题,但我对如何访问深度嵌套在数组中的项目有点迷茫。这是我在 USDOL 网站上使用的示例 JSON { "name": "osha-establishment", "count": 15, "frequency": "Manual Crawl", "version": 4, "newdata": true, "lastrunstatus": "success", "lastsuccess": "Mon Dec 08 2014 11:19:57 GMT+0000 (UTC)", "thisversionstatus": "success", "results": { "est_search": [ { "est_name": "Chipotle Mexican Grill", "state": "MN", "activity": { "href": "https://www.osha.gov/pls/imis/establishment.inspection_detail?id=317911832", "text": "317911832" }, "opened": "11/20/2014", "rid": "0552700", "type": "Complaint", "sc": "Partial", "sic": { "href": "https://www.osha.gov/pls/imis/sic_manual.display?id=44&tab=description", "text": "5812" }, "naics": "722110", "vio": "" }, } ] } }我想访问sic此 JSON 集中键的值。
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