这个错误是什么意思。

#include"stdio.h"
typedef struct stacknode
{
int date;
struct stacknode *next;
}stacknode,*linkstack;
void printfstack(linkstack &s)
void gostack(linkstack &s)
void outstack(linkstack &s)
void choicestack(linkstack &s)
void gostack(linkstack &s)
{
linkstack p;int n;
printf("请输入\n");
p=new stacknode;
scanf("%d",&p->date);
p->next=s;
s=p;
printf("是（1）否（0）继续\n");
scanf("%d",&n);
if(n==1)
gostack(s);
else
choicestack(s);
}
void outstack(linkstack &s)
{
if(s==NULL)
exit (1);
stacknode *p;int n;
p=s;
s=s->next;
delete p;
printf("是（1）否（0）继续\n");
scanf("%d",&n);
if(n==1)
outstack(s);
else
choicestack(s);
}
void printfstack(linkstack &s)
{
linkstack p;
if(s==NULL)
exit (1);
p=s;
if(p==NULL)
;
else
{
p=p->next;
printf("%d\t",p->date);
}
}
void choicestack(linkstack &s)
{ int n;
printf("1.进栈2.出栈3.输出其他.退出\n");
scanf("%d",&n);
switch(n)
{
case 1:gostack(linkstack s);break;
case 2:outstack(linkstack s);break
case 3:printfstack(linkstack s);break;
default:exit (1);
}
}
int main()
{
linkstack s,p;int n,i;
s=NULL;
printf("请输入进栈整数的个数\n");
scanf("%d",&n);
printf("请输入%d个数\n",n);
for(i=0;i<n;i++)
{
p=new stacknode;
scanf("%d",&p->date);
p->next=s;
s=p;
}
choicestack(s);

}

你没说是什么问题啊？而且提交代码最好用代码块

修改见注释，供参考：

#include <stdio.h>
typedef struct stacknode
{
    int date;
    struct stacknode* next;
}stacknode, * linkstack;
void printfstack(linkstack& s);//缺了 ‘;'分号
void gostack(linkstack& s);    //修改
void outstack(linkstack& s);   //修改
void choicestack(linkstack& s);//修改
void gostack(linkstack& s)
{
    linkstack p; int n;
    printf("请输入:\n");
    p = new stacknode;
    scanf("%d", &p->date);
    p->next = s;
    s = p;
    printf("是（1）否（0）继续\n");
    scanf("%d", &n);
    if (n == 1)
        gostack(s);
    else
        choicestack(s);
}
void outstack(linkstack& s)
{
    if (s == NULL)
        return;      //exit(1);修改
    stacknode* p; 
    int n;
    p = s;
    s = s->next;
    delete p;
    printf("是（1）否（0） 继续\n");
    scanf("%d", &n);
    if (n == 1)
        outstack(s);
    else 
        choicestack(s);
}
void printfstack(linkstack& s)
{
    linkstack p;
    if (s == NULL)
        return;  //exit(1);   修改
    p = s;
               //if (p == NULL) 修改
               //    ;
    while(p)  //else
    {
        printf("%d\t", p->date);
        p = p->next;
    }
    printf("\n");
    choicestack(s);
}
void choicestack(linkstack& s)
{
    int n;
    printf("1.进栈2.出栈3.输出其他.退出\n");
    scanf("%d", &n);
    switch (n)
    {
    case 1:gostack(s); break;      //gostack(linkstack s);
    case 2:outstack(s); break;    //outstack(linkstack s);
    case 3:printfstack(s); break; //printfstack(linkstack s);
    default:n = 0; break;           //exit(1);
    }
    if (n == 0) return;
}
int main()
{
    linkstack s, p; int n, i;
    s = NULL;
    printf("请输入进栈整数的个数\n");
    scanf("%d", &n);
    printf("请输入%d个数\n", n);
    for (i = 0; i < n; i++)
    {
        p = new stacknode;
        scanf("%d", &p->date);
        p->next = s;
        s = p;
    }
    choicestack(s);
    return 0;
}

什么错误，倒是发出来啊