对指针进行解引用操作，可获得该指针所指对象的值。
When we dereference a pointer, we obtain the object to which the pointer points.
编写代码修改指针的值；然后再编写代码修改指针所指对象的值。
Write code to change the value of a pointer. Write code to change the value to which the pointer points.
我们很久以来都知道，要了解一个单词的起源，必须知道此单词所指对象的属性。
It has been established long since that to know the origin of a word, one must know the properties of the object the word designates.
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