C语言链表在函数内给head赋值问题

Question

想要简单的实现以下链表，然后这次尝试在函数内完成head的建立，结果因为同级指针的问题，不能修改主函数的head，请把这段完善

#include <stdio.h>
#include <stdlib.h>
typedef struct NODE{
    int date;
    struct Node *next;
}Node;
Node* create(int a){
    Node *node = (Node*)malloc(sizeof (Node));
    node->date = a;
    node->next = NULL;
    return node;
}
void insert(Node* head){
    int a;
    scanf("%d",&a);
    Node* new = create(a);
    if(head==NULL){
        Node **head = &head;
        *head = new;
    } else{
        Node* p = head;
        while (p->next){
            p=p->next;
        }
        p->next = new;
    }
}
void print(Node*head)
{
    Node* pMove=head;
    while(pMove)
    {
        printf("%d ",pMove->date);
        pMove=pMove->next;
    }

}
void delete(Node*head,int count){
    Node* pMove=head;
    for(int i=0;i<count-1;i++){
        pMove = pMove->next;
    }
    if(pMove+2!=NULL){
        pMove->next = (pMove+2);
    } else{
        pMove->next=NULL;
    }
}
int main() {
    Node *head  = NULL;
    for(int i = 0 ; i<=1;i++){
        insert(head);
    }
    print(head);
}

请求修改位置:
insert函数下：

if(head==NULL){
        Node **head = &head;
        *head = new;
    }

为了方便验证，主函数就只用了输入两次.

Answer 1

修改处见注释，供参考：

#include <stdio.h>
#include <stdlib.h>
typedef struct NODE{
    int date;
    struct NODE *next; //struct Node 修改
}Node;
Node* create(int a){
    Node *node = (Node*)malloc(sizeof (Node));
    node->date = a;
    node->next = NULL;
    return node;
}
void insert(Node** head){ //void insert(Node* head) 修改
    int a;
    scanf("%d",&a);
    Node* New = create(a); //new 修改
    if((*head) == NULL){   //f(head==NULL)  修改
        //Node **head = &head;          修改
        (*head) = New;       //new;     修改
    } else{
        Node* p = (*head);  //Node* p = head; 修改
        while (p->next){
            p=p->next;
        }
        p->next = New;     //new 修改
    }
}
void print(Node* head)
{
    Node* pMove=head;
    while(pMove)
    {
        printf("%d ",pMove->date);
        pMove=pMove->next;
    }

}
void Delete(Node* head,int count){ //delete 修改
    Node* pMove=head;
    for(int i=0;i<count-1;i++){
        pMove = pMove->next;
    }
    if(pMove+2!=NULL){        //pMove+2是什么？
        pMove->next = (pMove+2);//链表不是连续空间，pMove+2是想干啥？
    } else{
        pMove->next=NULL;
    }
}
int main() {
    Node *head  = NULL;
    for(int i = 0 ; i <= 1;i++){
        insert(&head);  //insert(head);
    }
    print(head);
    system("pause");
    return 0;
}