写函数建立一个有三名学生数据的单项动态链表.docVIP

C语言链表类题目 写函数建立一个有三名学生数据的单项动态链表，很全面，各种测试都试过了，环境VC6.0 /* //原理 设置头尾指针去除最后一个结构体 #include stdio.h #include string.h #include malloc.h struct Student { long num; float score; struct Student* next; struct Student *pre; }; int n=0; struct Student* create(void) { struct Student *head; struct Student *tail; struct Student *pre; struct Student *p; head = NULL; pre = NULL; p=(struct Student*)malloc(sizeof(struct Student)); printf(请输入用户名和得分:\n); scanf(%ld %f,p-num,p-score); if (0 == p-num) { return NULL; } while(0 != p-num) { n++; if (NULL == head) { head=p; tail=p; pre = NULL; tail-next = NULL; } else { pre = tail; tail-next=p; tail=p; } p=(struct Student*)malloc(sizeof(struct Student)); printf(请输入用户名和得分:\n); scanf(%ld%f,p-num,p-score); } if (NULL != pre) { tail-next=NULL; } return head; } int main() { struct Student *head = create(); struct Student *p=head; printf(\n\n\n); printf(以下为输出结果：\n\n); while (p !=NULL) { printf(%ld\t%.3f\n,p-num,p-score); p=p-next; } printf(\n); printf(共有节点%d个\n,n); printf(\n); return 0; } */ /* //原理 输出时最后一个结构体不输出通过(p-next==NULL)实现 #include stdio.h #include string.h #include malloc.h struct Student { long num; float score; struct Student* next; }; int n=0; struct Student* create(void) { struct Student *head; struct Student *tail; struct Student *p; head = NULL; tail = NULL; p=(struct Student*)malloc(sizeof(struct Student)); printf(请输入用户名和得分:\n); scanf(%ld %f,p-num,p-score); while(0 != p-num) { n++; if (NULL == head) { head=p; tail=p; tail-next=NULL; } else { tail-next=p; tail=p; } p=(struct Student*)malloc(sizeof(struct Student)); printf(请输入用户名和得分:\n); scanf(%ld%f,p-num,p-score); } if (NULL != tail) { tail-next=NULL; } return head; } int main() { struct Student *head = create(); struct Student *p=head; printf(\n\n\n); printf(以下为输出结果：\n\n); while (p !=NULL) { printf(%ld\t%f\n,p-num,p-scor