如何将std::string转int,double? (C/C++) (C) (template)

http://www.cnblogs.com/oomusou/archive/2008/08/01/525647.html

http://blog.sina.com.cn/s/blog_a843a8850101l4gp.html

http://www.cnblogs.com/rosesmall/archive/2012/03/28/2422373.html

http://www.cnblogs.com/ChinaKingKong/p/4677257.html