定义于头文件 <sstream>
template< class CharT, class Traits std::char_traits<CharT> > class basic_istringstream;(C11 前)template< class CharT, class Traits std::char_traits<CharT>, class Allocator std::allo…
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LEC 6
Example container: Map Things are stored in ascending order (based on <) by default on the first component (the string)
Map access 让一个键名为“one”的值为1
添加一个键值对,键名是“two”,值为2
functor 功能原件 LEC 7