sql.js is a port of SQLite to JavaScript, by compiling the SQLite C code with Emscripten. It uses a virtual database file stored in memory, and thus doesn't persist the changes made to the database.

Use the SQLite CLI's fsdir() table functions with lines_read() to read lines from every file in a directory.

总而言之，这门“五大编程+雾计算编程课”远不止是一门编程课。它是一把钥匙，为15-18岁的青少年打开了通往 分布式计算世界 的大门。在这个世界里，他们学到的不仅仅是Python、Go或SQL的语法，更重要的是 系统思维、架构能力和解决复杂问题的逻辑 。这些能力，无论他们未来是否成为程序员，在任何一个追求效率和创新的领域都将是无价之宝。

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