STL - 容器 - Map(一)-白红宇

STL - 容器 - Map(一)

阅读量：6584 次

发布时间：2019-06-24

本文共 1439 字，大约阅读时间需要 4 分钟。

MapTest.cpp

#include #include 
      
       #include 
       
        #include 
        
         #include "MapTest.h"using namespace std;void MapTest::simpleEnumeration(){    map
         
           coll {         { "tim", 9.9 },                                  { "struppi", 11.77 }    } ;    // for range-based enumeration    cout << "for range-based enumeration: " << endl;    for (auto elem : coll)    {        cout << elem.first << ": " << elem.second << endl;    }    // iterating    cout << "iterating: " << endl;    map
          
           ::iterator pos; for (pos = coll.begin(); pos != coll.end(); ++pos) { cout << pos->first << ": " << pos->second << endl; } // square the value of each element: for_each (coll.begin(), coll.end(), [] (pair
           
            & elem) { elem.second *= elem.second; }); // print each element: cout << "for_each lambda enumeration: " << endl; for_each (coll.begin(), coll.end(), [] (const map
            
             ::value_type& elem) { cout << elem.first << ": " << elem.second << endl; });}void MapTest::run(){ printStart("simpleEnumeration()"); simpleEnumeration(); printEnd("simpleEnumeration()");}