In this code, you start by declaring a file pointer to standard input so that you can get interactive information from the keyboard during the spell-check process.

在这段代码中，您首先要为标准输入声明一个文件指针，以便您能够在拼写检查过程中从键盘获得交互式信息。

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Furthermore, it says nothing about where in the code the null pointer was actually assigned.

此外，它并不指出在代码的何处这个空指针被赋值。

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The code shown in Listing 1 shows both a memory leak and a dangling pointer.

显示在列表1中的代码展示了一个内存渗漏和一个不断摆动的指针。

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With the pointer that he keeps attached to his hand, Ward can punch in a security code and the automatic door swings open.

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