廖和風

1. #include<iostream>
   
2. #include<cstdlib>
   
3. #include<typeinfo>
   
4. using namespace std;
   
5. int main()
   
6. {
   
7.     int a=123;
   
8.     string s=to_string(a);
   
9.     cout<<typeid(s).name()<<endl;
   
10.     cout<<typeid(stoi(s)).name()<<endl;
    
11.     cout<<typeid(stof(s)).name()<<endl;
    
12.     cout<<typeid(stod(s)).name()<<endl;
    
13.     system("pause");
    
14.     return 0;
    
15. }

複製代碼