STL中map 和vector嵌套使用示例_stl map嵌套vector-CSDN博客

本文链接：https://blog.csdn.net/sky04/article/details/4089625

本文展示如何使用C++标准库中的map和vector容器来存储和检索数据。具体包括使用map存储键值对并遍历输出，以及使用vector存储字符串列表，并通过map进行组织和输出。

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暂且只有添加和循环输出，后期再加以改进。

#pragma warning(disable : 4786 ) #include <string> #include <iostream> #include <algorithm> #include <map> #include <vector> using namespace std; typedef map<string, string> STRING2STRING; typedef std::map<string, vector<string > > STRING2VECTOR; int main() { std::map<string, string > map_test; map_test.insert(STRING2STRING::value_type("2001", "test1")); map_test.insert(STRING2STRING::value_type("2002", "test2")); map_test.insert(STRING2STRING::value_type("2003", "test3")); map_test.insert(STRING2STRING::value_type("2004", "test4")); map_test.insert(STRING2STRING::value_type("2005", "test5")); map<string, string>::const_iterator map_conitor = map_test.begin(); for(; map_conitor!= map_test.end(); map_conitor++) { cout<<map_conitor->first<<" "<<map_conitor->second<<endl; } cout<<"n"; std::vector<string> vec1; vec1.push_back("test1_vector1"); vec1.push_back("test1_vector2"); vec1.push_back("test1_vector3"); vec1.push_back("test1_vector4"); std::vector<string> vec2; vec2.push_back("test2_vector1"); vec2.push_back("test2_vector2"); vec2.push_back("test2_vector3"); vec2.push_back("test2_vector4"); std::map<string , vector<string> > testMap; testMap.insert(STRING2VECTOR::value_type("10001",vec1)); testMap.insert(STRING2VECTOR::value_type("10002",vec2)); std::map<string, vector<string> >::iterator map_it = testMap.begin(); for ( ; map_it != testMap.end(); map_it++) { cout<<map_it->first<<"/t"; vector<string>::iterator mapvec_itor = map_it->second.begin(); for ( ; mapvec_itor != map_it->second.end(); mapvec_itor++) { cout<<(*mapvec_itor)<<" "; } cout<<endl; } cout<<"/n///"<<endl; map<string,vector<string> >::iterator iter=testMap.find( "10002" ); if(iter!=testMap.end()) //should like this { vector<string>::iterator it = iter->second.begin(); while(it != iter->second.end()) { cout<<(*it++)<<endl; } } return 0; }