支持导入常量：这个特性使静态方法和字段能够被导入，这样在访问静态成员时就不必使用完全限定的类名。

Support for importing constants: This facility allows static methods and fields to be imported, avoiding the need to use fully qualified class names when accessing static members.

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记录级访问类创建、读取、更新和删除 IBM i 文件和成员。

The Record-level access classes create, read, update, and delete IBM i files and members.

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注意，在访问类成员函数的参数时，实际的参数编号从 2 而不是从 1 开始。

Note that when you try to access an argument of a class member function the actual argument count starts from 2 instead of 1.

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