The following program illustrates how you can send and receive objects.
下面的程序向您说明怎样发送和接收对象。
Signals are the efficient and flexible glue that tie the objects in your program together.
信号是一种有效和灵活的“粘合剂”，它们把程序中的对象“粘合”在一起。
A program may create many objects of the same class.
程序可能会建立很多相同类别的物件。
A program may create many objects of the same class.
程序可能会建立很多相同类别的物件。
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