结构列表中的内存错误（存储未知）

Question

我正在尝试编译此代码，但我收到内存错误：list1.c：25：15：错误：'cnodo'的存储大小未知    struct nobo cnodo;

所以有人能告诉我这个错误的来源是什么以及如何避免它？

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

struct nodo {
    int info;
    struct nodo *prec;
    struct nodo *succ;
    } ;
typedef struct nodo nodo;




void stampa (struct nodo *p);


int main (void) {

    struct nodo *p;


    struct nodo anodo;
    struct nodo bnodo;
    struct nobo cnodo;

    anodo.info = 99;
    anodo.prec = NULL;
    anodo.succ = NULL;



    bnodo.info = 1010;
    bnodo.prec = NULL;
    bnodo.succ = NULL;


    cnodo.info = 1020;
    cnodo.prec = NULL;
    cnodo.succ = NULL;

    anodo.succ = &bnodo;    
    bnodo.prec = &anodo;
    bnodo.succ = &cnodo;    
    cnodo.prec = &bnodo;

    p = &anodo;

    stampa(p);


    return 0;

    }


void stampa (struct nodo *p) {

    while (p != NULL) {

        printf("\n nodo value is : %d \n ", p -> info);
        p = p -> succ;

        }
    }

Answer 1

因为它是

struct nodo cnodo;

不

struct nobo cnodo;
     /*  ^ d not b

Answer 2

你有一个错字。变化

 struct nobo cnodo;

到

struct nodo cnodo;