void ListAdd(DLinkList head)
{
     int  n;
     DLinkList s_ptListP,s_ptListQ;
     char s_pTemp,t;
     s_ptListP=head->next;
     printf("please input the place you want to add:");
     scanf("%d",&n);
     while(n>1)
     {
          s_ptListP=s_ptListP->next;
          n--;
     }
     s_ptListQ=(DLinkList)malloc(sizeof(DNode));
     printf("please input the content you want to add:");
     scanf("%e",&s_pTemp);
     t=s_pTemp;                                 // 单步调试时t的值为乱码，s_pTemp不是我输入的值，这是什么原因啊
     s_ptListQ->data=s_pTemp;
     if(s_ptListP==NULL)
     {
      s_ptListQ=NULL;
      s_ptListP->next=s_ptListQ;
      s_ptListQ->prior=s_ptListP;
     }
     else if(s_ptListP->prior==head)
     {
      head->next=s_ptListQ;
      s_ptListP->prior=s_ptListQ;
      s_ptListQ->next=s_ptListP;
     }
     else
     {
      s_ptListQ->next=s_ptListP->next;
      s_ptListP->next->prior=s_ptListQ;
      s_ptListP->next=s_ptListQ;
      s_ptListQ->prior=s_ptListP;
     }
}

求助啊

scanf("%e",&s_pTemp);
你是不是想用%c?

打错了，是%c

你还是把代码贴全吧,这样也不好看,应该是你那里代码写的溢出了.