使用Sajax永远只需要一个文件，在该文件中只需定义我们使用的函数即可。

With Sajax, we never need more than one file, which only needs to define the functions we are using.

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该转换还提供了另外一个选项：为一个在类声明下的头文件中的内联函数生成该函数的定义。

The transformation also provides an option to generate the function definition for an inline function in the header file below the class declaration. To activate this option, perform these steps

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