备注:
String类的操作
STL一些容器的操作:stack、map、vector
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链接:
C++字符串string类常用操作详解(一)【初始化、遍历、连接】:https://www.cnblogs.com/qiumingcheng/p/7872545.html
C++标准模板库STL之Stack:https://www.cnblogs.com/drq1/p/9699475.html