"节点本身初始化为NULL作为链尾" ?

"节点本身初始化为NULL作为链尾" ?

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送交者: heretic 于 2009-07-30, 01:26:55:

回答: 三个层次的错误，很难得由 Yush 于 2009-07-30, 00:06:46:

ls = NULL;

The above assignment has no effect on the link list at all.
Basically a local variable is assigned with 0. Nothing else.

“即使他那函数参数改成**或&并修改程序” - Yush (9 bytes) 2009-07-30, 01:35:27 (351019)
- 那就该把初始化改成："*ls = (linktype *)malloc (sizeof (linktype)); ..." (无内容) - steven (0 bytes) 2009-07-30, 02:13:42 (351047)
  - 后面还要有一句 (*ls)->next = NULL; （参数改成LStackTp ** ls） - Yush (108 bytes) 2009-07-30, 10:14:40 (351178)