C++_cout.write()函数

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

void main()
{ 
    char buffer[1024];
    cout<<"请输入原始报文:"<<endl;
    cin.get(buffer,1024);
    cout<<buffer<<endl;
    cout.write(buffer,6);
}

输入:ni hao ma?则会输出：

ni hao ma?

ni hao