/*
Experiment to find out what happens when printf‘s argument string contains \c,
where c is some character not listed above.
*/
#include <stdio.h>
main()
{
printf("hello world\y");
printf("hello world\7");
printf("hello world\?");
}
C - The C Answer (2nd Edition) - Exercise 1-2
原文：http://www.cnblogs.com/wzjhoutai/p/6740172.html