朱奕祈

1. #include<iostream>
   
2. #include<cstdlib>
   
3. #include<ctime>
   
4. #include<cmath>
   
5. #include<string>
   
6. using namespace std;
   
7. int main()
   
8. {
   
9.         string str="apple0123456789";
   
10.         cout<<"原字串:"<<str<<endl;
    
11.     cout<<str.substr(1,11)<<endl;
    
12.     cout<<str.substr(3,6)<<endl;
    
13.     cout<<str.substr(5,7)<<endl;
    
14.         system("pause");
    
15.     return 0;
    
16. }

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