数据结构C语言版，两个题目求大神解答。

#define NULL 0typedef struct node{ char data[50]; int length;}seqstring;void fun(seqstring* s) { int i = 0, j = 0; for (j = 0; j length; j++) { if (s->data[j] != '*') { s->data[i] = s->data[j]; i++; } } while (i length) { s->dat