c - 在C链表中添加节点并列出它们

Question

我正在用 c 语言练习链表，我想编写一个程序，从键盘读取条目并在添加每个节点后列出链表的内容，但输出始终是第一个节点，我做不到找出原因，有人可以指出此代码中的缺陷:

#include <stdio.h>
#include <stdlib.h>

typedef int ID;

typedef struct node {
    ID id;
    struct node * next;
} node_t;

int main(){
    node_t * head;
    node_t * conductor;
    head = NULL;
    ID id;
    int i=0;

    while(i<10){
        printf("Introduce an id:\n");
        scanf("%d", &id);
        if(head == NULL){
            head = malloc(sizeof(node_t));
            head->id = id;
            head->next = NULL;
        }
        else{
            conductor = head;
            while(conductor != NULL)
                conductor = conductor->next;

            conductor = malloc(sizeof(node_t));
            conductor->id = id;
            conductor->next = NULL;
        }
        conductor = head;
        printf("the list contains these elements:\n");
        while(conductor != NULL){
            printf("%d\n", conductor->id);
            conductor = conductor->next;
        }
        ++i;
    }
}

Answer 1

他的问题出在你的 while 循环中

while (conductor != NULL)

要添加新节点，需要在找到最后一个导体后设置conductor->next。像这样的东西可以工作:

 While (conductor->next != NULL)