c语言学习

void printArr(int arr[],int n){
    for(int i=0; i<n; i++){
        printf("%d\n", arr[i]);
    }
}


int main(){
    int arr1[]={1,2,3,4,5,8,9};
    int n_arr1 = sizeof(arr1)/sizeof(int);
	printf("%d\n",n_arr1); 
    int arr2[3]={7,8,9};
    printArr(arr2,3);
    return 0;
}