蔡沛倢

1. #include<iostream>
   
2. #include<cstdlib>
   
3. #include<string>
   
4. using namespace std;
   
5. int main()
   
6. {
   
7.     string a="0123456789";
   
8.     cout<<"原字串:"<<a<<endl;
   
9.     cout<<a.substr(9)<<endl;
   
10.     cout<<a.substr(5,4)<<endl;
    
11.     cout<<a.substr(3,1)<<endl;
    
12.     cout<<a.substr(6,2)<<endl;
    
13.     system("pause");
    
14.     return 0;
    
15. }

複製代碼