程序代码：

#include<stdio.h>

void access(int a[][3],int row){
    printf("in access_sizeof(a)=%d\n",sizeof(a));
    printf("in access_sizeof(*a)=%d\n",sizeof(*a));
    int rank=(sizeof(a)/sizeof(*a));
    for(int i=0;i<rank;i++){
        for(int j=0;j<row;j++){
            printf("%d\t\t",a[i][j]);
        }
            printf("\n");    
    }        
}

int main(){
    int a[4][3]={{1,2,3},{4,5,6},{7,8,9},{10,11,12}};    
        printf("in main_sizeof(a)=%d\n",sizeof(a));
        printf("in main_sizeof(*a)=%d\n\n",sizeof(*a));
    access(a,3);
    return 0;
}