目录条款01：视C++为一个语言联邦（View C++ as a federation of languages）条款02：尽量以const、enum、inline替换#define（Prefer consts, enums, and inlines to #define）替换原因两种特殊常量形似函
http://www.zajuzi.com/mingyandaquan/juzi423.html 1、永远不抱怨，一切靠自己。 Never complain, everything depends on yourself. 2、纵不能万丈光芒，也要倒在追梦的路上！ Even if you can't
