有一个最简单的做法！！！

#include <iostream>
 #include <algorithm>
 #include <math.h>
 #include <cmath>
#include<string>
#include<cstring>
#include<list>
#include<map>
#include<queue>
#include<iterator>
#include<stack>
#include <windows.h>
using namespace std;
typedef long long LL;
typedef double DB;
typedef int IT;
typedef long double LDB;
typedef long L;
typedef short S;
#pragma GCC optimize ("O0")
void h(int hss, char hs)
{
	hss = 72;
	hs = hss;
	cout << hs;
}
void e(int ess, char es)
{
	ess = 101;
	es = ess;
	cout << es;
}
void l(int lss, char ls)
{
	lss = 108;
	ls = lss;
	cout << ls;
}
void o(int oss, char os)
{
	oss = 111;
	os = oss;
	cout << os;
}
void w(int wss, char ws)
{
	wss = 87;
	ws = wss;
	cout << ws;
}
void r(int rss, char rs)
{
	rss = 114;
	rs = rss;
	cout << rs;
}
void d(int dss, char ds)
{
	dss = 100;
	ds = dss;
	cout << ds;
}
int main()
{
	ios::sync_with_stdio(false);
	cin.tie(0);
	cout << "H";
        Sleep(10);
	cout << "e";
        Sleep(10);
	cout << "l";
        Sleep(10);
	cout << "l";
        Sleep(10);
	cout << "o";
        Sleep(10);
	cout << " ";
        Sleep(10);
	cout << "W";
        Sleep(10);
	cout << "o";
        Sleep(10);
	cout << "r";
        Sleep(10);
	cout << "l";
        Sleep(10);
	cout << "d";
        Sleep(10);
	 return 0;
}