引用第5楼dbzhang800于2010-08-26 19:10发表的 :
Once a program has been linked to use shared libraries, it must be able to find the shared
library when it runs. The libraries are located by name, not by directory, so it is possible
to link the program against one copy of the library and run it using another. This can,
of course, cause problems if you switch from one version of the library to another
without updating the program—which is the reason most libraries include a version
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