map store two-dimensional array

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Method a: pointer storage

#include <map>
#include <string>
void map_twowei(const std::vector<std::string> list,const std::vector<std::vector<doble>> &data)  
{
	std::map<std::string,const std::vector<double> *> map1;  //data是一个二维数组,map存放对应的是数组指针
	std::size_type list_len = list.size();
	for (int i = 0 ; i < list_len;++i)
	{
		map1.emplace(list[i],&data[i]);    //创建map
	} 
	double find_result = data.at(list[0])->at[0]  //寻找字符串list[0]对应的数组的第0位上的值
}

Act II: Store subscript Index

#include <map>
#include <string>
void map_twowei(const std::vector<std::string> list,const std::vector<std::vector<doble>> &data)  
{
	std::map<std::string,unsigned long> map1;  //data是一个二维数组,map存放对应的是数组指针
	std::size_type list_len = list.size();
	for (int i = 0 ; i < list_len;++i)
	{
		map1.emplace(list[i],&data[i]);    //创建map
	} 
	unsignde long index = data.at(list[0]);
	double find_result = data[index][0]  //寻找字符串list[0]对应的数组的第0位上的值
}