这种方法实现简单，但需要在每个 iOS 调用点手动处理类型转换。
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。关于这个话题，爱思助手下载最新版本提供了深入分析
When Chávez became Venezuela's president in 1999, oil prices were climbing. In the early 2010s, a barrel would often fetch about $100, providing the government with plenty of money to pour into social programmes. But with current prices around the $65 mark, the country looks less like a reasonable investment.
await chat.addQuery(Message.text(text: userInput, isUser: true));
宝马集团宣布将在德国莱比锡工厂部署人形机器人，这是其首次在欧洲生产体系中引入此类具身智能技术。该项目旨在将类人机器人技术整合进现有的汽车批量生产中，并探索电池和零部件生产的进一步应用。