现在,看看如何访问基本数据类型和派生数据类型的参数。
Now, take a look at how to access basic and derived data types of arguments.
联合数据类型必须从原子数据类型或列表数据类型派生。
A union data type must be derived from an atomic or list data type.
联合数据类型必须从原子数据类型或列表数据类型派生。
A list data type must be derived from an atomic or union data type.
联合数据类型必须从原子数据类型或列表数据类型派生。
A list data type must be derived from an atomic or union data type.
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