The symbols are used for naming various sections of code and data, both initialized and uninitialized.

这些符号可以用来对各种代码段和数据段进行命名，包括经过初始化的和未初始化的。

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The nm program is good for listing symbols and their types and values but, for examining in greater detail the contents of those named sections of the object file, more powerful tools are necessary.

nm程序可用于列举符号及其类型和值，但是，要更仔细地研究目标文件中这些命名段的内容，需要使用功能更强大的工具。

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