The function can have any name and must be declared in the EXPORTS function of the module definition (def) file with an ordinal value of 1.

该函数可以拥有任何名称，但必须在模块定义(DEF)文件的exports函数中用序数值1来声明它。

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The function can have any name and must be declared in the EXPORTS function of the module definition file with an ordinal value of 1. The callback function must be in this format

该函数可以拥有任何名称，但必须在模块定义（DEF）文件的 EXPORTS 函数中用序数值 1 来声明它。

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When the module wishes to provide the ability for another entity (external service or other module) to invoke a business function it exports this capability.

当模块需要向另一个实体(外部服务或其他模块)提供功能来调用业务功能时，它将导出该功能。

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