如何在C ++中编写3d映射？ [英] How to write 3d mapping in C++?

问题描述

你能告诉我怎么能写多维地图。对于二维映射，我做了以下操作：

  map< string，int&员工
员工[person1] = 200; 
  

我正在尝试使用类似于以下内容的三维映射。

  map< string，string，int>雇员; 
员工[person1，age] = 200;你能告诉我正确的方法吗？
 
 
 
 
 
 
 
 
 $ b < b $ b 
有没有办法我可以初始化所有的地图元素为0？就像在数组上，我们可以说 int array [10] = {0};  
解决方案
您需要创建这样的地图。
  map< string，map< string，int& >雇员; 
 employees [person1] [age] = 200; 
  
 
Can you please tell me how I can write multidimensional map. For two dimensional map, I did the following:  
map<string, int> Employees
Employees["person1"] = 200;
I was trying to use something similar to following for 3d mapping. 
map<string, string, int> Employees;
Employees["person1", "age"] = 200;
Can you please tell me the correct way to do this?

and Is there a way I can initialize all the map elements to be 0 ? Just like on a array we can say int array[10]={0};
解决方案
You need to create map of maps like that.
map<string, map<string, int> > employees;
employees["person1"]["age"] = 200;


                        
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