定义一个Ip数据报,然后发送出去

// Expm1.1
// Write a non-graphic standard C++ program:

#include <iostream>
void main(void)
{
std::cout<<"Hello!\n";
std::cout<<"Welcome to c++!\n";
}

// 清翔兔

/*
2. Write a program that counts and prints the number of lines, words, and letter frequencies in its input. For example, the input:
Two roads diverged in a yellow wood,
And sorry I would not travel both
And be one traveler, long I stood
And looked down one as far as I could
To where it bent in the undergrowth;
Would produce the output:
The input had 5 lines, 37 words, and the following letter frequencies:
A:10 B:3 C:2 D:13 E:15 F:1 ……
*/

#include <iostream>
#include <string>
#include <map>
using namespace std;

void main()
{
string word;
char p;
int line=1; //调整行数计算误差<