它会以参考原始物件来替代。
每次撷取那个相同的资料列时,就会将原始物件执行个体交还给应用程序。
Whenever you retrieve that same row, the original object instance is handed back to the application.
将物件设定为指定值,然后传回原始物件的参考,成为不可部分完成的作业。
Sets an object to a specified value and returns a reference to the original object, as an atomic operation.
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