求助很短的代码 报错：下标要求数组或指针类型

[qq_30499345]

文件Map.h
class Map
{
public:
void printmap(int *arr,int row,int line);
};
文件Map.cpp
#include<iostream>
#include"Map.h"
using namespace std;
void Map::printmap(int *arr, int row, int line)
{
for (int i = 0; i < row; i++)
{
for (int j = 0; j < line; j++)
{
if (arr[i][j] == 0)
{
cout << "*";
}
else
{
cout << " ";
}
}
cout << endl;
}
}
文件main.cpp
#include"Map.h"
#include<stdlib.h>
int main()
{
int a[3][3] = { 1,0,1,0,1,0,1,0,1 };
Map *p = new Map();
p->printmap(*a, 3, 3);
system("pause");
}
求助

[赵4老师]

int a[3][3]

[paschen]

三个文件对应处依次这样改： void printmap(int (*arr)[3], int row, int line); void Map::printmap(int(*arr)[3], int row, int line) p->printmap(a, 3, 3);