In screen.h, add the following function definitions.

在screen . h中添加以下函数定义。

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This next function will demonstrate the ability to not only return values, but to return an object, such as a String. Add the following function to native.c.

接下来的函数将不仅演示返回值的能力，还会演示返回例如字符串这样的对象的能力。

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Under this directory, add the function model file named function.xml, with the contain the following content.

在此目录下，添加名为function . xml的函数模型文件，该文件包含以下内容。

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