vs2008 平台下异质单链表的实现，利用虚函数来实现的，调试通过，加深对虚函数的理解-vs2008 platform realization of heterogeneous single-chain, the use of virtual function to achieve, and debugging through deepened understanding of the virtual function
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SHOW FULL COLUMNS FROM `jrk_member` [ RunTime:0.006572s ]
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SHOW FULL COLUMNS FROM `jrk_searchrecords` [ RunTime:0.000891s ]
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SHOW FULL COLUMNS FROM `jrk_articles` [ RunTime:0.001753s ]
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