C++ 获取二维数组行数和列数函数

#include using namespace std;

void GetRowCol(int arr[][4],int &row,int &col){ row=sizeof(arr)/sizeof(arr[0]); col=sizeof(arr[0])/sizeof(int); }

int main(){ int arr[][4]={1,2,3,4,5,6,7,8,9,10,11,12}; int row,col; GetRowCol(arr,row,col); cout'row = '<<row<<endl; cout'col = '<<col<<endl; return 0; }