&node->data);

printf("请输入要插入的位置："); scanf("%d", &node->pos);

if (node->pos < 1 || node->pos > size) {

printf("位置无效，请重新输入。  

");

continue;

}

for (int i = size; i >= node->pos; i--) {

node->data = data[i - 1];
node->next = data[i - 1]->next;
data[i - 1]->next = node;

}

size++;