#include 
     
      #include 
      
       typedef struct list{    int data;    struct list* pnext;}list,*pnode;pnode create_list();void traversal_list(pnode phead);int main(){    pnode phead = create_list();    traversal_list(phead);    return 0;}pnode create_list(){    int i,n=1;    puts("please input the number of data:");    scanf("%d",&i);    pnode phead = (pnode)malloc(sizeof(list));    pnode p = phead;    for(;i>0;i--){        int idata;        printf("please input the %dst data:   ",n++);        pnode pnew = (pnode)malloc(sizeof(list));        scanf("%d",&idata);        pnew->data = idata;        p->pnext = pnew;        pnew->pnext = NULL;        p = p->pnext;    }    return phead;}void traversal_list(pnode phead){    pnode p = phead->pnext;    while(p){        printf("%d",p->data);        p = p->pnext;    }}