陳牧謙

1. #include<iostream>
   
2. #include<cstdlib>
   
3. #include<string>
   
4. using namespace std;
   
5. int main()
   
6. {
   
7.     string str="0123456789";
   
8.     cout<<"原字串:"<<str<<endl;
   
9.     cout<<str.substr(3,7)<<endl;  
   
10.     cout<<str.substr(7,3)<<endl;  
    
11.     system("pause");
    
12.     return 0;   
    
13. }

複製代碼