Absolute C++ Chapter 1 Self-Test Exercise(3)

9.

cout<<"The answer to the question of /n"
　　<<"Life, the Universe, and Everything is 42./n";

10.

cout<<"Enter a whole number.";
cin>>theNumber;

11.

cout.setf(ios::fixed);
cout.setf(ios::showpoint);
cout.precision(3);

12.

#include<iostream>
using namespace std;
int main()
{
　　cout<<"Hello world /n";
　　return 0;
}

13.

cout<<'A'<<endl<<'B'<<"\t"<<'C';

 

转载于:https://www.cnblogs.com/hanterry/archive/2012/05/05/2484796.html