C++调试 输出数组内容和数组名

#include <cstdio>
using namespace std;

//函数定义
#define printArr(arr,n,format) printf("%s:",#arr);for(int i = 0;i<(n);++i){    printf((format),arr[i]);    printf(" ");}printf("\n");

#define N 100
int arr1[N];
float arr2[N];

int main(){
    int n=5;for(int i = 0;i<n;++i){arr1[i]=5*i;arr2[i]=10.0*i;}
    printArr(arr1,n,"%d");//函数使用
    printArr(arr2,n,"%f");
    return 0;
}

arr1:0 5 10 15 20
arr2:0.000000 10.000000 20.000000 30.000000 40.000000