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在实际开发中,链表的动态创建通常采用前插法或尾插法。这种方法允许我们逐步构建链表,适用于需求不明确或数据插入顺序不确定的情况。
#include#include struct Test { int data; struct Test *next;};void printLink(struct Test *head) { struct Test *p = head; while (p != NULL) { printf("%d ", p->data); p = p->next; } putchar('\n');}struct Test* creatFromHead(struct Test *head, struct Test *new) { if (head == NULL) { head = new; } else { new->next = head; head = new; } return head;}struct Test* creatLink(struct Test *head) { struct Test *new; while (1) { new = (struct Test *)malloc(sizeof(struct Test)); printf("Please input:\n"); scanf("%d", &new->data); if (new->data == 0) { free(new); break; } head = creatFromHead(head, new); } return head;}int main() { struct Test *p = NULL; p = creatLink(p); printLink(p); return 0;}
#include#include struct Test { int data; struct Test *next;};void printLink(struct Test *head) { struct Test *p = head; while (p != NULL) { printf("%d ", p->data); p = p->next; } putchar('\n');}struct Test* creatFromBehind(struct Test *head, struct Test *new) { struct Test *p = head; if (head == NULL) { head = new; return head; } while (p->next != NULL) { p = p->next; } p->next = new; return head;}struct Test* creatLink(struct Test *head) { struct Test *new; while (1) { new = (struct Test *)malloc(sizeof(struct Test)); printf("Please input:\n"); scanf("%d", &new->data); if (new->data == 0) { free(new); break; } head = creatFromBehind(head, new); } return head;}int main() { struct Test *p = NULL; p = creatLink(p); printLink(p); return 0;}
前插法和尾插法在实现上有所不同,但最终目标相同。前插法更直观,适合需要频繁插入新节点的场景,而尾插法在插入操作次数少的情况下表现更优。
选择哪种方法取决于具体需求:
无论选择哪种方法,掌握两种实现方式都是有益的。
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