把书读薄----EffectiveCPP3(1)

把书读薄----

EffectiveCPP3(1)

Chapter 1. Accustoming Yourself to C++

Item 1: View C++ as a federation of languages

Item 2: Prefer constS, enumS, and inlineS to #defineS

Item 3: Use const whenever possible

Item 4: Make sure that objects are initialized before they're used