How to thread easily in C++

#include <string>
#include <iostream>
#include <thread> //header file for threads

using namespace std;

// Set a function that the thread should execute
void task1(string msg)
{
    cout << "task1 says: " << msg;
}

int main()
{
    // Create and run a new thread. The current thread is not blocked.
    thread t1(task1, "Hello");

    // Make the main wait for the newly created thread to finish the work.
    t1.join();
}