何權晉

1. #include<iostream>
   
2. #include<cmath>
   
3. using namespace std;
   
4. int main()
   
5. {
   
6.     string st="1123456789";
   
7.     cout<<"Original: "<<st<<endl;
   
8.     cout<<st.substr(2)<<endl;
   
9.     cout<<st.substr(1,2)<<endl;
   
10.     cout<<st.substr(5,3)<<endl;
    
11.     cout<<st.substr(7)<<endl;
    
12.     cout<<st.substr(6)<<endl;
    
13. system("pause");
    
14. return 0;
    
15. }

複製代碼