本题考察换行的应用:可用转义字符\n,或者endl. 
#include<iostream>
using namespace std;
int main()
{
    cout<<"zhe\n"<<"shi\n"<<"yi\n"<<"dao\n"<<"qian\n"<<"dao\n"<<"ti";
}
#include<iostream>
using namespace std;
int main()
{
        cout<<"zhe"<<endl<<"shi"<<endl<<"yi"<<endl<<"dao"<<endl<<"qian"<<endl<<"dao"<<endl<<"ti";
}