数据指针（DPTR）是单片机中一个功能比较特殊的寄存器，片外RAM寻址用的地址寄存器（间接寻址）可以将外部RAM中地址的内容传送到内部RAM的地址所指向的内容中。
数据指针
网络释义专业释义
双语例句原声例句
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这两个数据指针之间，有4个字节的间隔。
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也就是说，它会在对象销毁时删除数据指针。
That is, it will delete the Pointers of data at the object destruction.
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数据指针值无效。
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As we all know, this only works if there is a pointee, which kind of gets back to rule number one.
众所周知，只有当有指针数据时，这个才起作用，这有点像第一条规则。
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Instead if we want this pointer to represent the address of something in as much as it points at that address let's just draw an arrow.
如果我们想要让这个指针表示,数据的地址，它指向的地址,我用一个箭头表示。
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Number one, the basic structure is that you have a pointer and it points over to a pointee, but the pointer and pointee are separate and the common error is to set up a pointer but to forget to give it a pointee.
第一，基本结构是，你有一个,指向数据的指针，但是那个指针和数据,是分开的，通常错误是声明了一个指针,但是没有指向一个数据。
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$firstVoiceSent
- 来自原声例句