编写一个C语言程序，显示下列10个转义字符：\a，\b,\n,\r,\t,\v,\',\",\\,\?

#include <stdio.h>
void main()
{
printf("\\a is \a,\\b is \b,\\n is \n,\\r is \r,\\t is \t");
printf("\\v is \v,\\' is \',\\\" is \",\\\\ is \\,\\? is \?");
getch();
}

有些转义字符是看不到的，比如\n（回车）

#include<stdio.h>
main()
{printf("\\a,\\b,\\n,\\r,\\t,\\v,\\',\\\",\\\\,\\?\n");
}
全部显示出来的代码