我的自编map容器搜索名字电话代码

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#include <iostream>
#include <string>
#include <time.h>
#include <map>
using namespace std;
int main()
{
     
     clock_t start, end;
     double cpu_time_used;
    
     start = clock();
     /* Do the work. */
 map<string,string>phones;
 phones["lets play dota"]="115";
 phones["Zhang Min"]="12348876";
 phones["Liang Hao"]="12343346";
 phones["Luo Li"]="12346678";
 phones["Huang Shan"]="12342278";
 string input;
 cout <<"请输入搜索名字：";
 getline(cin,input);
 cout <<endl;
 map<string,string>::iterator cur=phones.find(input);
 if(cur!=phones.end())
  cout<<input <<"'s phone number is " <<(*cur).second <<endl;
 else
  cout<<input <<"doesn't exist in phones." <<endl;

 end = clock();
     cpu_time_used = ((double) (end - start)) / CLOCKS_PER_SEC/1000;
  cout<<"耗时（ms）：" <<cpu_time_used <<endl;
  return 0;
}