07 const/volatile/mutable:常量/变量究竟是怎么回事(整理自<罗剑锋的C++实战笔记>) 文章地址:https://time.geekbang.org/column/article/238486?utm_source=pinpaizhuanqu&utm_medium=geektime&utm_campaign=guanwang&utm_term=guanwang&utm_content=0511