链表头部插入节点

#include<stdio.h>
#include<stdlib.h>
#pragma warning (disable:4996)
struct Node
{
    int data;
    struct Node* link;
};
struct Node* head;//头节点
void Insert(int x);
void Printf();
int main()
{
    head == NULL;
    int x,n;
    printf("请输入你要插入的节点个数\n");
    scanf("%d", &n);

    for (size_t i = 0; i < n; i++)
    {
        printf("输入你要插入的链表数据\n");
        scanf("%d", &x);
        Insert(x);
        Printf();
    }
}
void Insert(int x)
{
    Node* temp = (Node*)malloc(sizeof(Node));
    temp->data = x;
    temp->link = head;
    head = temp;
}
void Printf()
{
    Node* temp = head;
    printf("List is");
    while (temp!=NULL)
    {
        printf(" %d ", temp->data);
        temp = temp->link;
    }
    printf("\n");
}