单个字符串反转

int main() {string str; cout<<"Please input string:"; cin>>str; string::size_type len=str.size();                                                                                                                            for( string::size_type i=0;i!=len/2;i++) { char temp; temp=str[i]; str[i]=str[len-i-1]; str[len-i-1]=temp; } cout<<str<<endl;

return 0;}