User-defined function

（重定向自User Defined Function）

A user-defined function (UDF) is a function provided by the user of a program or environment, in a context where the usual assumption is that functions are built into the program or environment.

单词	User Defined Function
释义	User Defined Function 英语百科 User-defined function （重定向自User Defined Function） A user-defined function (UDF) is a function provided by the user of a program or environment, in a context where the usual assumption is that functions are built into the program or environment.
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