how to sort a string in c 2b 2b

1#include<bits/stdc++.h>
2using namespace std;
3int main()
4{
5	srting str; // First, declare a string.
6  	sort(str.begin() , str.end()); // Then sort it by using this method. It is much more convenient.
7  	cout << str << endl; // Last of all, print out the string.
8}
9