指针函数和函数指针

参考链接：

http://baike.baidu.com/link?url=uXjQSs_r0CSxVMGHPVBoZ_1i_a9sZ0Hiig8id-kjHEjlyZn8nYUWzoAo66d_uMvwGWvrt_nGLHgWafH-nhDXX_

http://www.cnblogs.com/gmh915/archive/2010/06/11/1756067.html

http://lionwq.spaces.eepw.com.cn/articles/article/item/18258

http://www.programfan.com/blog/article.asp?id=6030

http://hi.baidu.com/bellgrade/item/4a4334e8132eed0965db00a6

http://blog.chinaunix.net/uid-10386087-id-2959230.html

http://baike.baidu.com/link?url=q9uAzcxwHC4rLd9pXRnklNfoXkS_nDUMuuEz_n1-PXzspqRBb2hh2mdbdhHrHwoV1346FakHKBxj6Nf9u94y4q

http://c.chinaitlab.com/ccjq/865383.html

http://dev.yesky.com/465/30959965.shtml

http://dev.yesky.com/193/3071193.shtml