这题我是大写的服气,辛辛苦苦搞了个双重链表结果还一直不对,不对就算了,书上源代码打进去还是不对,我能怎么办我也很无奈.不过这题还是让我对双重链表更加了解和运用了!还是可以的! You’re typing a long text with a broken keyboard. Well it’s not so badly broken. The only problem with the keyboard is that sometimes the “home” key or the “end”…