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2 年
meta_programming.md
元编程是指使用程序代码来生成可以动态运行的程序代码。元编程的目的一般是延迟执行代码或动态创建代码。 DolphinDB支持使用元编程来动态创建表达式,包括函数调用的表达式与SQL查询表达式等。DolphinDB中可用以下两种方法实现元编程: (1)使用一对尖括号 ...
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