这个键(或多个键)用于替代这个参数标记(或多个标记)，参数标记被定义为在RPG handle_open子过程中创建的sql语句字符串的一部分。

The key (or keys) are used to replace the parameter marker (or markers) which were defined as part of the SQL statement string created in the RPG HANDLE_OPEN sub-procedure.

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注意SimpleDB有一个名为itemname的隐含键，在本例中为字符串形式的备忘事项，如下所示？

Note that SimpleDB has an implicit key called ItemName, which in this case would be the to-do item as a string, like so.

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DOIView示例程序中，演示了资源、键盘加速键和弹出式菜单的用法。程序中的文本被存储为一系列字符串资源。

DOIView sample program, presentation resources, keyboard keys, and accelerate the use of pop-up menu. Program text is stored as a series of string resources.

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